validation: Test Timer Manager

The test source code is generated from specification items
by the "./spec2modules.py" script contained in the
git://git.rtems.org/rtems-central.git Git repository.

Please read the "How-To" section in the "Software Requirements Engineering"
chapter of the RTEMS Software Engineering manual to get more information about
the process.

Update #3716.

12 files changed, 9084 insertions, 0 deletions

diff --git a/spec/build/testsuites/validation/validation-no-clock-0.yml b/spec/build/testsuites/validation/validation-no-clock-0.yml
index 1e05048e7e..66113c4390 100644
--- a/spec/build/testsuites/validation/validation-no-clock-0.yml
+++ b/spec/build/testsuites/validation/validation-no-clock-0.yml
@@ -93,6 +93,17 @@ source:
 - testsuites/validation/tc-task-suspend.c
 - testsuites/validation/tc-task-wake-after.c
 - testsuites/validation/tc-task-wake-when.c
+- testsuites/validation/tc-timer.c
+- testsuites/validation/tc-timer-cancel.c
+- testsuites/validation/tc-timer-create.c
+- testsuites/validation/tc-timer-delete.c
+- testsuites/validation/tc-timer-fire-after.c
+- testsuites/validation/tc-timer-fire-when.c
+- testsuites/validation/tc-timer-ident.c
+- testsuites/validation/tc-timer-initiate-server.c
+- testsuites/validation/tc-timer-reset.c
+- testsuites/validation/tc-timer-server-fire-after.c
+- testsuites/validation/tc-timer-server-fire-when.c
 - testsuites/validation/tr-event-constant.c
 - testsuites/validation/tr-mtx-seize-try.c
 - testsuites/validation/tr-mtx-seize-wait.c
diff --git a/testsuites/validation/tc-timer-cancel.c b/testsuites/validation/tc-timer-cancel.c
new file mode 100644
index 0000000000..223848fdee
--- /dev/null
+++ b/testsuites/validation/tc-timer-cancel.c
@@ -0,0 +1,813 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqCancel
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqCancel spec:/rtems/timer/req/cancel
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqCancel_Pre_Id_Valid,
+  RtemsTimerReqCancel_Pre_Id_Invalid,
+  RtemsTimerReqCancel_Pre_Id_NA
+} RtemsTimerReqCancel_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqCancel_Pre_Context_None,
+  RtemsTimerReqCancel_Pre_Context_Interrupt,
+  RtemsTimerReqCancel_Pre_Context_Server,
+  RtemsTimerReqCancel_Pre_Context_NA
+} RtemsTimerReqCancel_Pre_Context;
+
+typedef enum {
+  RtemsTimerReqCancel_Pre_Clock_None,
+  RtemsTimerReqCancel_Pre_Clock_Ticks,
+  RtemsTimerReqCancel_Pre_Clock_Realtime,
+  RtemsTimerReqCancel_Pre_Clock_NA
+} RtemsTimerReqCancel_Pre_Clock;
+
+typedef enum {
+  RtemsTimerReqCancel_Pre_State_Inactive,
+  RtemsTimerReqCancel_Pre_State_Scheduled,
+  RtemsTimerReqCancel_Pre_State_Pending,
+  RtemsTimerReqCancel_Pre_State_NA
+} RtemsTimerReqCancel_Pre_State;
+
+typedef enum {
+  RtemsTimerReqCancel_Post_Status_Ok,
+  RtemsTimerReqCancel_Post_Status_InvId,
+  RtemsTimerReqCancel_Post_Status_NA
+} RtemsTimerReqCancel_Post_Status;
+
+typedef enum {
+  RtemsTimerReqCancel_Post_Context_None,
+  RtemsTimerReqCancel_Post_Context_Interrupt,
+  RtemsTimerReqCancel_Post_Context_Server,
+  RtemsTimerReqCancel_Post_Context_Nop,
+  RtemsTimerReqCancel_Post_Context_NA
+} RtemsTimerReqCancel_Post_Context;
+
+typedef enum {
+  RtemsTimerReqCancel_Post_Clock_None,
+  RtemsTimerReqCancel_Post_Clock_Ticks,
+  RtemsTimerReqCancel_Post_Clock_Realtime,
+  RtemsTimerReqCancel_Post_Clock_Nop,
+  RtemsTimerReqCancel_Post_Clock_NA
+} RtemsTimerReqCancel_Post_Clock;
+
+typedef enum {
+  RtemsTimerReqCancel_Post_State_Inactive,
+  RtemsTimerReqCancel_Post_State_Nop,
+  RtemsTimerReqCancel_Post_State_NA
+} RtemsTimerReqCancel_Post_State;
+
+typedef struct {
+  uint16_t Skip : 1;
+  uint16_t Pre_Id_NA : 1;
+  uint16_t Pre_Context_NA : 1;
+  uint16_t Pre_Clock_NA : 1;
+  uint16_t Pre_State_NA : 1;
+  uint16_t Post_Status : 2;
+  uint16_t Post_Context : 3;
+  uint16_t Post_Clock : 3;
+  uint16_t Post_State : 2;
+} RtemsTimerReqCancel_Entry;
+
+typedef enum {
+  PRE_NONE = 0,
+  PRE_INTERRUPT = 1,
+  PRE_SERVER = 2
+} PreConditionContext;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/cancel test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains a valid id of a timer.
+   */
+  rtems_id timer_id;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id id_param;
+
+  /**
+   * @brief This member contains the return status of the action.
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member contains the counter for invocations of the Timer
+   *   Service Routine.
+   */
+  int invocations;
+
+  /**
+   * @brief This member specifies which pre-condition context (none, interrupt
+   *   context, server context) must be created before the cancel action gets
+   *   executed.
+   */
+  PreConditionContext pre_cond_contex;
+
+  /**
+   * @brief This member stores RTEMS internal clock and context settings of the
+   *   timer before the execution of the test action.
+   */
+  Timer_Classes pre_class;
+
+  /**
+   * @brief This member stores the state of the timer before the execution of
+   *   the test action.
+   */
+  Timer_States pre_state;
+
+  /**
+   * @brief This member stores the state of the timer after the execution of
+   *   the test action.
+   */
+  Timer_States post_state;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 4 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqCancel_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqCancel_Context;
+
+static RtemsTimerReqCancel_Context
+  RtemsTimerReqCancel_Instance;
+
+static const char * const RtemsTimerReqCancel_PreDesc_Id[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqCancel_PreDesc_Context[] = {
+  "None",
+  "Interrupt",
+  "Server",
+  "NA"
+};
+
+static const char * const RtemsTimerReqCancel_PreDesc_Clock[] = {
+  "None",
+  "Ticks",
+  "Realtime",
+  "NA"
+};
+
+static const char * const RtemsTimerReqCancel_PreDesc_State[] = {
+  "Inactive",
+  "Scheduled",
+  "Pending",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqCancel_PreDesc[] = {
+  RtemsTimerReqCancel_PreDesc_Id,
+  RtemsTimerReqCancel_PreDesc_Context,
+  RtemsTimerReqCancel_PreDesc_Clock,
+  RtemsTimerReqCancel_PreDesc_State,
+  NULL
+};
+
+static const rtems_time_of_day tod_now      = { 2000, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_schedule = { 2000, 1, 1, 1, 0, 0, 0 };
+static const rtems_time_of_day tod_fire     = { 2000, 1, 2, 0, 0, 0, 0 };
+
+static void TriggerTimer( void )
+{
+  /* Fire the timer service routine for ticks and realtime clock */
+  int i;
+  for ( i = 0; i < 5; i++ ) {
+    ClockTick();
+  }
+  T_rsc_success( rtems_clock_set( &tod_fire ) );
+}
+
+static void TimerServiceRoutine(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqCancel_Context *ctx = user_data;
+  ++( ctx->invocations );
+}
+
+static void RtemsTimerReqCancel_Pre_Id_Prepare(
+  RtemsTimerReqCancel_Context *ctx,
+  RtemsTimerReqCancel_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCancel_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter is valid.
+       */
+      ctx->id_param = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Id_Invalid: {
+      /*
+       * While the ``id`` parameter is invalid.
+       */
+      ctx->id_param = RTEMS_ID_NONE;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Pre_Context_Prepare(
+  RtemsTimerReqCancel_Context    *ctx,
+  RtemsTimerReqCancel_Pre_Context state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCancel_Pre_Context_None: {
+      /*
+       * While the Timer Service Routine has never been scheduled since
+       * creation of the timer. See also none.
+       */
+      ctx->pre_cond_contex = PRE_NONE;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Context_Interrupt: {
+      /*
+       * While the timer is in interrupt context.
+       */
+      ctx->pre_cond_contex = PRE_INTERRUPT;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Context_Server: {
+      /*
+       * While the timer is in server context.
+       */
+      ctx->pre_cond_contex = PRE_SERVER;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Pre_Clock_Prepare(
+  RtemsTimerReqCancel_Context  *ctx,
+  RtemsTimerReqCancel_Pre_Clock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCancel_Pre_Clock_None: {
+      /*
+       * While the timer has never been scheduled since creation of the timer.
+       */
+      T_eq_int( ctx->pre_cond_contex, PRE_NONE );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Clock_Ticks: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * ticks based clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_after(
+          ctx->timer_id,
+          1,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+         status = rtems_timer_server_fire_after(
+          ctx->timer_id,
+          1,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Clock_Realtime: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * realtime clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Pre_State_Prepare(
+  RtemsTimerReqCancel_Context  *ctx,
+  RtemsTimerReqCancel_Pre_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCancel_Pre_State_Inactive: {
+      /*
+       * While the timer is in inactive state.
+       */
+      TriggerTimer();
+      T_eq_int(
+        ctx->invocations,
+        ( ctx->pre_cond_contex == PRE_NONE ) ? 0 : 1
+      );
+      ctx->invocations = 0;
+      ctx->pre_state = TIMER_INACTIVE;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_State_Scheduled: {
+      /*
+       * While the timer is in scheduled state.
+       */
+      /* The timer was already scheduled in the "Clock" pre-conditions. */
+      ctx->pre_state = TIMER_SCHEDULED;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_State_Pending: {
+      /*
+       * While the timer is in pending state.
+       */
+      T_rsc_success( rtems_task_suspend( GetTimerServerTaskId() ) );
+      TriggerTimer();
+      T_eq_int( ctx->invocations, 0 );
+      ctx->pre_state = TIMER_PENDING;
+      break;
+    }
+
+    case RtemsTimerReqCancel_Pre_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Post_Status_Check(
+  RtemsTimerReqCancel_Context    *ctx,
+  RtemsTimerReqCancel_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCancel_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_cancel() shall be RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_cancel() shall be RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Post_Context_Check(
+  RtemsTimerReqCancel_Context     *ctx,
+  RtemsTimerReqCancel_Post_Context state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqCancel_Post_Context_None: {
+      /*
+       * The timer shall have never been scheduled. See also none.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Context_Interrupt: {
+      /*
+       * The timer shall be in interrupt context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, 0 );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Context_Server: {
+      /*
+       * The timer shall be in server context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, TIMER_CLASS_BIT_ON_TASK );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Context_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past call to
+       * rtems_timer_cancel() shall not be accessed by the rtems_timer_cancel()
+       * call. See also Nop.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Post_Clock_Check(
+  RtemsTimerReqCancel_Context   *ctx,
+  RtemsTimerReqCancel_Post_Clock state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqCancel_Post_Clock_None: {
+      /*
+       * The timer shall have never been scheduled.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Clock_Ticks: {
+      /*
+       * The timer shall use the ticks based clock.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_TIME_OF_DAY, 0 );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Clock_Realtime: {
+      /*
+       * The timer shall use the realtime clock.
+       */
+      T_eq_int(
+        class & TIMER_CLASS_BIT_TIME_OF_DAY,
+        TIMER_CLASS_BIT_TIME_OF_DAY
+      );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Clock_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past call to
+       * rtems_timer_cancel() shall not be accessed by the rtems_timer_cancel()
+       * call.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Post_State_Check(
+  RtemsTimerReqCancel_Context   *ctx,
+  RtemsTimerReqCancel_Post_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCancel_Post_State_Inactive: {
+      /*
+       * The timer shall be in inactive state.
+       */
+      /* Try to fire the timer service routine - which should not fire. */
+      TriggerTimer();
+      T_eq_int( ctx->invocations, 0 );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_State_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past call to
+       * rtems_timer_cancel() shall not be accessed by the rtems_timer_cancel()
+       * call.
+       */
+      T_eq_int( ctx->post_state, ctx->pre_state );
+      break;
+    }
+
+    case RtemsTimerReqCancel_Post_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCancel_Setup( RtemsTimerReqCancel_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_initiate_server(
+    RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_ATTRIBUTES
+  );
+  T_rsc_success( status );
+}
+
+static void RtemsTimerReqCancel_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqCancel_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqCancel_Setup( ctx );
+}
+
+/**
+ * @brief Make sure the timer server is not running and the realtime clock is
+ *   not set after this test.
+ */
+static void RtemsTimerReqCancel_Teardown( RtemsTimerReqCancel_Context *ctx )
+{
+  DeleteTimerServer();
+  UnsetClock();
+}
+
+static void RtemsTimerReqCancel_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqCancel_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqCancel_Teardown( ctx );
+}
+
+static void RtemsTimerReqCancel_Prepare( RtemsTimerReqCancel_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_create(
+    rtems_build_name( 'T', 'I', 'M', 'E' ),
+    &ctx->timer_id
+  );
+  T_rsc_success( status );
+
+  ctx->invocations = 0;
+  T_rsc_success( rtems_clock_set( &tod_now ) );
+}
+
+static void RtemsTimerReqCancel_Action( RtemsTimerReqCancel_Context *ctx )
+{
+  ctx->pre_class = GetTimerClass( ctx->timer_id );
+  ctx->status = rtems_timer_cancel( ctx->id_param );
+  ctx->post_state = GetTimerState( ctx->timer_id );
+  /* Ignoring return status: the timer server task may be suspended or not. */
+  rtems_task_resume( GetTimerServerTaskId() );
+}
+
+static void RtemsTimerReqCancel_Cleanup( RtemsTimerReqCancel_Context *ctx )
+{
+  T_rsc_success( rtems_timer_delete( ctx->timer_id ) );
+}
+
+static const RtemsTimerReqCancel_Entry
+RtemsTimerReqCancel_Entries[] = {
+  { 1, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_NA,
+    RtemsTimerReqCancel_Post_Context_NA, RtemsTimerReqCancel_Post_Clock_NA,
+    RtemsTimerReqCancel_Post_State_NA },
+  { 0, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_InvId,
+    RtemsTimerReqCancel_Post_Context_Nop, RtemsTimerReqCancel_Post_Clock_Nop,
+    RtemsTimerReqCancel_Post_State_Nop },
+  { 0, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_Ok,
+    RtemsTimerReqCancel_Post_Context_Server,
+    RtemsTimerReqCancel_Post_Clock_Ticks,
+    RtemsTimerReqCancel_Post_State_Inactive },
+  { 0, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_Ok,
+    RtemsTimerReqCancel_Post_Context_Server,
+    RtemsTimerReqCancel_Post_Clock_Realtime,
+    RtemsTimerReqCancel_Post_State_Inactive },
+  { 0, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_Ok,
+    RtemsTimerReqCancel_Post_Context_Interrupt,
+    RtemsTimerReqCancel_Post_Clock_Ticks,
+    RtemsTimerReqCancel_Post_State_Inactive },
+  { 0, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_Ok,
+    RtemsTimerReqCancel_Post_Context_Interrupt,
+    RtemsTimerReqCancel_Post_Clock_Realtime,
+    RtemsTimerReqCancel_Post_State_Inactive },
+  { 0, 0, 0, 0, 0, RtemsTimerReqCancel_Post_Status_Ok,
+    RtemsTimerReqCancel_Post_Context_None, RtemsTimerReqCancel_Post_Clock_None,
+    RtemsTimerReqCancel_Post_State_Inactive }
+};
+
+static const uint8_t
+RtemsTimerReqCancel_Map[] = {
+  6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 5, 5, 0, 0, 0, 0, 2, 2, 2, 3, 3,
+  3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1,
+  1, 1
+};
+
+static size_t RtemsTimerReqCancel_Scope( void *arg, char *buf, size_t n )
+{
+  RtemsTimerReqCancel_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope( RtemsTimerReqCancel_PreDesc, buf, n, ctx->Map.pcs );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqCancel_Fixture = {
+  .setup = RtemsTimerReqCancel_Setup_Wrap,
+  .stop = NULL,
+  .teardown = RtemsTimerReqCancel_Teardown_Wrap,
+  .scope = RtemsTimerReqCancel_Scope,
+  .initial_context = &RtemsTimerReqCancel_Instance
+};
+
+static inline RtemsTimerReqCancel_Entry RtemsTimerReqCancel_PopEntry(
+  RtemsTimerReqCancel_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqCancel_Entries[
+    RtemsTimerReqCancel_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqCancel_TestVariant( RtemsTimerReqCancel_Context *ctx )
+{
+  RtemsTimerReqCancel_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqCancel_Pre_Context_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqCancel_Pre_Clock_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqCancel_Pre_State_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqCancel_Action( ctx );
+  RtemsTimerReqCancel_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
+  RtemsTimerReqCancel_Post_Context_Check( ctx, ctx->Map.entry.Post_Context );
+  RtemsTimerReqCancel_Post_Clock_Check( ctx, ctx->Map.entry.Post_Clock );
+  RtemsTimerReqCancel_Post_State_Check( ctx, ctx->Map.entry.Post_State );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqCancel( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerReqCancel, &RtemsTimerReqCancel_Fixture )
+{
+  RtemsTimerReqCancel_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqCancel_Pre_Id_Valid;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqCancel_Pre_Id_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqCancel_Pre_Context_None;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqCancel_Pre_Context_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqCancel_Pre_Clock_None;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqCancel_Pre_Clock_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqCancel_Pre_State_Inactive;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqCancel_Pre_State_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          ctx->Map.entry = RtemsTimerReqCancel_PopEntry( ctx );
+
+          if ( ctx->Map.entry.Skip ) {
+            continue;
+          }
+
+          RtemsTimerReqCancel_Prepare( ctx );
+          RtemsTimerReqCancel_TestVariant( ctx );
+          RtemsTimerReqCancel_Cleanup( ctx );
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-create.c b/testsuites/validation/tc-timer-create.c
new file mode 100644
index 0000000000..dea3a40175
--- /dev/null
+++ b/testsuites/validation/tc-timer-create.c
@@ -0,0 +1,535 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqCreate
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <string.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqCreate spec:/rtems/timer/req/create
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqCreate_Pre_Name_Valid,
+  RtemsTimerReqCreate_Pre_Name_Invalid,
+  RtemsTimerReqCreate_Pre_Name_NA
+} RtemsTimerReqCreate_Pre_Name;
+
+typedef enum {
+  RtemsTimerReqCreate_Pre_Id_Valid,
+  RtemsTimerReqCreate_Pre_Id_Null,
+  RtemsTimerReqCreate_Pre_Id_NA
+} RtemsTimerReqCreate_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqCreate_Pre_Free_Yes,
+  RtemsTimerReqCreate_Pre_Free_No,
+  RtemsTimerReqCreate_Pre_Free_NA
+} RtemsTimerReqCreate_Pre_Free;
+
+typedef enum {
+  RtemsTimerReqCreate_Post_Status_Ok,
+  RtemsTimerReqCreate_Post_Status_InvName,
+  RtemsTimerReqCreate_Post_Status_InvAddr,
+  RtemsTimerReqCreate_Post_Status_TooMany,
+  RtemsTimerReqCreate_Post_Status_NA
+} RtemsTimerReqCreate_Post_Status;
+
+typedef enum {
+  RtemsTimerReqCreate_Post_Name_Valid,
+  RtemsTimerReqCreate_Post_Name_Invalid,
+  RtemsTimerReqCreate_Post_Name_NA
+} RtemsTimerReqCreate_Post_Name;
+
+typedef enum {
+  RtemsTimerReqCreate_Post_IdVar_Set,
+  RtemsTimerReqCreate_Post_IdVar_Nop,
+  RtemsTimerReqCreate_Post_IdVar_NA
+} RtemsTimerReqCreate_Post_IdVar;
+
+typedef struct {
+  uint16_t Skip : 1;
+  uint16_t Pre_Name_NA : 1;
+  uint16_t Pre_Id_NA : 1;
+  uint16_t Pre_Free_NA : 1;
+  uint16_t Post_Status : 3;
+  uint16_t Post_Name : 2;
+  uint16_t Post_IdVar : 2;
+} RtemsTimerReqCreate_Entry;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/create test case.
+ */
+typedef struct {
+  /**
+   * @brief This member is used by the T_seize_objects() and
+   *   T_surrender_objects() support functions.
+   */
+  void *seized_objects;
+
+  /**
+   * @brief This member may contain the object identifier returned by
+   *   rtems_timer_create().
+   */
+  rtems_id id_value;
+
+  /**
+   * @brief This member specifies the ``name`` parameter for the action.
+   */
+  rtems_name name;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id *id;
+
+  /**
+   * @brief This member contains the return status of the action.
+   */
+  rtems_status_code status;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 3 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqCreate_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqCreate_Context;
+
+static RtemsTimerReqCreate_Context
+  RtemsTimerReqCreate_Instance;
+
+static const char * const RtemsTimerReqCreate_PreDesc_Name[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqCreate_PreDesc_Id[] = {
+  "Valid",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqCreate_PreDesc_Free[] = {
+  "Yes",
+  "No",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqCreate_PreDesc[] = {
+  RtemsTimerReqCreate_PreDesc_Name,
+  RtemsTimerReqCreate_PreDesc_Id,
+  RtemsTimerReqCreate_PreDesc_Free,
+  NULL
+};
+
+#define NAME rtems_build_name( 'T', 'E', 'S', 'T' )
+
+static rtems_status_code Create( void *arg, uint32_t *id )
+{
+  return rtems_timer_create( rtems_build_name( 'S', 'I', 'Z', 'E' ), id );
+}
+
+static void RtemsTimerReqCreate_Pre_Name_Prepare(
+  RtemsTimerReqCreate_Context *ctx,
+  RtemsTimerReqCreate_Pre_Name state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCreate_Pre_Name_Valid: {
+      /*
+       * While the ``name`` parameter is valid.
+       */
+      ctx->name = NAME;
+      break;
+    }
+
+    case RtemsTimerReqCreate_Pre_Name_Invalid: {
+      /*
+       * While the ``name`` parameter is invalid.
+       */
+      ctx->name = 0;
+      break;
+    }
+
+    case RtemsTimerReqCreate_Pre_Name_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCreate_Pre_Id_Prepare(
+  RtemsTimerReqCreate_Context *ctx,
+  RtemsTimerReqCreate_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCreate_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter references an object of type rtems_id.
+       */
+      ctx->id = &ctx->id_value;
+      break;
+    }
+
+    case RtemsTimerReqCreate_Pre_Id_Null: {
+      /*
+       * While the ``id`` parameter is NULL.
+       */
+      ctx->id = NULL;
+      break;
+    }
+
+    case RtemsTimerReqCreate_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCreate_Pre_Free_Prepare(
+  RtemsTimerReqCreate_Context *ctx,
+  RtemsTimerReqCreate_Pre_Free state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCreate_Pre_Free_Yes: {
+      /*
+       * While the system has at least one inactive timer object available.
+       */
+      /* Ensured by the test suite configuration */
+      break;
+    }
+
+    case RtemsTimerReqCreate_Pre_Free_No: {
+      /*
+       * While the system has no inactive timer object available.
+       */
+      ctx->seized_objects = T_seize_objects( Create, NULL );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Pre_Free_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCreate_Post_Status_Check(
+  RtemsTimerReqCreate_Context    *ctx,
+  RtemsTimerReqCreate_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCreate_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_create() shall be RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_Status_InvName: {
+      /*
+       * The return status of rtems_timer_create() shall be RTEMS_INVALID_NAME.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_NAME );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_Status_InvAddr: {
+      /*
+       * The return status of rtems_timer_create() shall be
+       * RTEMS_INVALID_ADDRESS.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ADDRESS );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_Status_TooMany: {
+      /*
+       * The return status of rtems_timer_create() shall be RTEMS_TOO_MANY.
+       */
+      T_rsc( ctx->status, RTEMS_TOO_MANY );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCreate_Post_Name_Check(
+  RtemsTimerReqCreate_Context  *ctx,
+  RtemsTimerReqCreate_Post_Name state
+)
+{
+  rtems_status_code sc;
+  rtems_id          id;
+
+  switch ( state ) {
+    case RtemsTimerReqCreate_Post_Name_Valid: {
+      /*
+       * The unique object name shall identify the timer created by the
+       * rtems_timer_create() call.
+       */
+      id = 0;
+      sc = rtems_timer_ident( NAME, &id );
+      T_rsc_success( sc );
+      T_eq_u32( id, ctx->id_value );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_Name_Invalid: {
+      /*
+       * The unique object name shall not identify a timer.
+       */
+      sc = rtems_timer_ident( NAME, &id );
+      T_rsc( sc, RTEMS_INVALID_NAME );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_Name_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCreate_Post_IdVar_Check(
+  RtemsTimerReqCreate_Context   *ctx,
+  RtemsTimerReqCreate_Post_IdVar state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqCreate_Post_IdVar_Set: {
+      /*
+       * The value of the object referenced by the ``id`` parameter shall be
+       * set to the object identifier of the created timer after the return of
+       * the rtems_timer_create() call.
+       */
+      T_eq_ptr( ctx->id, &ctx->id_value );
+      T_ne_u32( ctx->id_value, INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_IdVar_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past calls to
+       * rtems_timer_create() shall not be accessed by the rtems_timer_create()
+       * call.
+       */
+      T_eq_u32( ctx->id_value, INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqCreate_Post_IdVar_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqCreate_Setup( RtemsTimerReqCreate_Context *ctx )
+{
+  memset( ctx, 0, sizeof( *ctx ) );
+  ctx->id_value = INVALID_ID;
+}
+
+static void RtemsTimerReqCreate_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqCreate_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqCreate_Setup( ctx );
+}
+
+static void RtemsTimerReqCreate_Action( RtemsTimerReqCreate_Context *ctx )
+{
+  ctx->status = rtems_timer_create( ctx->name, ctx->id );
+}
+
+static void RtemsTimerReqCreate_Cleanup( RtemsTimerReqCreate_Context *ctx )
+{
+  if ( ctx->id_value != INVALID_ID ) {
+    rtems_status_code sc;
+
+    sc = rtems_timer_delete( ctx->id_value );
+    T_rsc_success( sc );
+
+    ctx->id_value = INVALID_ID;
+  }
+
+  T_surrender_objects( &ctx->seized_objects, rtems_timer_delete );
+}
+
+static const RtemsTimerReqCreate_Entry
+RtemsTimerReqCreate_Entries[] = {
+  { 0, 0, 0, 0, RtemsTimerReqCreate_Post_Status_InvName,
+    RtemsTimerReqCreate_Post_Name_Invalid, RtemsTimerReqCreate_Post_IdVar_Nop },
+  { 0, 0, 0, 0, RtemsTimerReqCreate_Post_Status_InvAddr,
+    RtemsTimerReqCreate_Post_Name_Invalid, RtemsTimerReqCreate_Post_IdVar_Nop },
+  { 0, 0, 0, 0, RtemsTimerReqCreate_Post_Status_Ok,
+    RtemsTimerReqCreate_Post_Name_Valid, RtemsTimerReqCreate_Post_IdVar_Set },
+  { 0, 0, 0, 0, RtemsTimerReqCreate_Post_Status_TooMany,
+    RtemsTimerReqCreate_Post_Name_Invalid, RtemsTimerReqCreate_Post_IdVar_Nop }
+};
+
+static const uint8_t
+RtemsTimerReqCreate_Map[] = {
+  2, 3, 1, 1, 0, 0, 0, 0
+};
+
+static size_t RtemsTimerReqCreate_Scope( void *arg, char *buf, size_t n )
+{
+  RtemsTimerReqCreate_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope( RtemsTimerReqCreate_PreDesc, buf, n, ctx->Map.pcs );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqCreate_Fixture = {
+  .setup = RtemsTimerReqCreate_Setup_Wrap,
+  .stop = NULL,
+  .teardown = NULL,
+  .scope = RtemsTimerReqCreate_Scope,
+  .initial_context = &RtemsTimerReqCreate_Instance
+};
+
+static inline RtemsTimerReqCreate_Entry RtemsTimerReqCreate_PopEntry(
+  RtemsTimerReqCreate_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqCreate_Entries[
+    RtemsTimerReqCreate_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqCreate_TestVariant( RtemsTimerReqCreate_Context *ctx )
+{
+  RtemsTimerReqCreate_Pre_Name_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqCreate_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqCreate_Pre_Free_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqCreate_Action( ctx );
+  RtemsTimerReqCreate_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
+  RtemsTimerReqCreate_Post_Name_Check( ctx, ctx->Map.entry.Post_Name );
+  RtemsTimerReqCreate_Post_IdVar_Check( ctx, ctx->Map.entry.Post_IdVar );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqCreate( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerReqCreate, &RtemsTimerReqCreate_Fixture )
+{
+  RtemsTimerReqCreate_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqCreate_Pre_Name_Valid;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqCreate_Pre_Name_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqCreate_Pre_Id_Valid;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqCreate_Pre_Id_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqCreate_Pre_Free_Yes;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqCreate_Pre_Free_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        ctx->Map.entry = RtemsTimerReqCreate_PopEntry( ctx );
+        RtemsTimerReqCreate_TestVariant( ctx );
+        RtemsTimerReqCreate_Cleanup( ctx );
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-delete.c b/testsuites/validation/tc-timer-delete.c
new file mode 100644
index 0000000000..92032c80cf
--- /dev/null
+++ b/testsuites/validation/tc-timer-delete.c
@@ -0,0 +1,362 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqDelete
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <string.h>
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqDelete spec:/rtems/timer/req/delete
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqDelete_Pre_Id_NoObj,
+  RtemsTimerReqDelete_Pre_Id_Timer,
+  RtemsTimerReqDelete_Pre_Id_NA
+} RtemsTimerReqDelete_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqDelete_Post_Status_Ok,
+  RtemsTimerReqDelete_Post_Status_InvId,
+  RtemsTimerReqDelete_Post_Status_NA
+} RtemsTimerReqDelete_Post_Status;
+
+typedef enum {
+  RtemsTimerReqDelete_Post_Name_Valid,
+  RtemsTimerReqDelete_Post_Name_Invalid,
+  RtemsTimerReqDelete_Post_Name_NA
+} RtemsTimerReqDelete_Post_Name;
+
+typedef struct {
+  uint8_t Skip : 1;
+  uint8_t Pre_Id_NA : 1;
+  uint8_t Post_Status : 2;
+  uint8_t Post_Name : 2;
+} RtemsTimerReqDelete_Entry;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/delete test case.
+ */
+typedef struct {
+  rtems_id timer_id;
+
+  rtems_id id;
+
+  rtems_status_code status;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 1 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqDelete_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqDelete_Context;
+
+static RtemsTimerReqDelete_Context
+  RtemsTimerReqDelete_Instance;
+
+static const char * const RtemsTimerReqDelete_PreDesc_Id[] = {
+  "NoObj",
+  "Timer",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqDelete_PreDesc[] = {
+  RtemsTimerReqDelete_PreDesc_Id,
+  NULL
+};
+
+#define NAME rtems_build_name( 'T', 'E', 'S', 'T' )
+
+static void RtemsTimerReqDelete_Pre_Id_Prepare(
+  RtemsTimerReqDelete_Context *ctx,
+  RtemsTimerReqDelete_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqDelete_Pre_Id_NoObj: {
+      /*
+       * While the ``id`` parameter is not associated with a timer.
+       */
+      ctx->id = 0;
+      break;
+    }
+
+    case RtemsTimerReqDelete_Pre_Id_Timer: {
+      /*
+       * While the ``id`` parameter is associated with a timer.
+       */
+      ctx->id = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqDelete_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqDelete_Post_Status_Check(
+  RtemsTimerReqDelete_Context    *ctx,
+  RtemsTimerReqDelete_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqDelete_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_delete() shall be RTEMS_SUCCESSFUL.
+       */
+      ctx->timer_id = 0;
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqDelete_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_delete() shall be RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqDelete_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqDelete_Post_Name_Check(
+  RtemsTimerReqDelete_Context  *ctx,
+  RtemsTimerReqDelete_Post_Name state
+)
+{
+  rtems_status_code sc;
+  rtems_id          id;
+
+  switch ( state ) {
+    case RtemsTimerReqDelete_Post_Name_Valid: {
+      /*
+       * The unique object name shall identify a timer.
+       */
+      id = 0;
+      sc = rtems_timer_ident( NAME, &id );
+      T_rsc_success( sc );
+      T_eq_u32( id, ctx->timer_id );
+      break;
+    }
+
+    case RtemsTimerReqDelete_Post_Name_Invalid: {
+      /*
+       * The unique object name shall not identify a timer.
+       */
+      sc = rtems_timer_ident( NAME, &id );
+      T_rsc( sc, RTEMS_INVALID_NAME );
+      break;
+    }
+
+    case RtemsTimerReqDelete_Post_Name_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqDelete_Setup( RtemsTimerReqDelete_Context *ctx )
+{
+  memset( ctx, 0, sizeof( *ctx ) );
+}
+
+static void RtemsTimerReqDelete_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqDelete_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqDelete_Setup( ctx );
+}
+
+static void RtemsTimerReqDelete_Teardown( RtemsTimerReqDelete_Context *ctx )
+{
+  if ( ctx->timer_id != 0 ) {
+    rtems_status_code sc;
+
+    sc = rtems_timer_delete( ctx->timer_id );
+    T_rsc_success( sc );
+  }
+}
+
+static void RtemsTimerReqDelete_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqDelete_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqDelete_Teardown( ctx );
+}
+
+static void RtemsTimerReqDelete_Prepare( RtemsTimerReqDelete_Context *ctx )
+{
+  if ( ctx->timer_id == 0 ) {
+    rtems_status_code sc;
+
+    sc = rtems_timer_create( NAME, &ctx->timer_id );
+    T_rsc_success( sc );
+  }
+}
+
+static void RtemsTimerReqDelete_Action( RtemsTimerReqDelete_Context *ctx )
+{
+  ctx->status = rtems_timer_delete( ctx->id );
+}
+
+static const RtemsTimerReqDelete_Entry
+RtemsTimerReqDelete_Entries[] = {
+  { 0, 0, RtemsTimerReqDelete_Post_Status_InvId,
+    RtemsTimerReqDelete_Post_Name_Valid },
+  { 0, 0, RtemsTimerReqDelete_Post_Status_Ok,
+    RtemsTimerReqDelete_Post_Name_Invalid }
+};
+
+static const uint8_t
+RtemsTimerReqDelete_Map[] = {
+  0, 1
+};
+
+static size_t RtemsTimerReqDelete_Scope( void *arg, char *buf, size_t n )
+{
+  RtemsTimerReqDelete_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope( RtemsTimerReqDelete_PreDesc, buf, n, ctx->Map.pcs );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqDelete_Fixture = {
+  .setup = RtemsTimerReqDelete_Setup_Wrap,
+  .stop = NULL,
+  .teardown = RtemsTimerReqDelete_Teardown_Wrap,
+  .scope = RtemsTimerReqDelete_Scope,
+  .initial_context = &RtemsTimerReqDelete_Instance
+};
+
+static inline RtemsTimerReqDelete_Entry RtemsTimerReqDelete_PopEntry(
+  RtemsTimerReqDelete_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqDelete_Entries[
+    RtemsTimerReqDelete_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqDelete_TestVariant( RtemsTimerReqDelete_Context *ctx )
+{
+  RtemsTimerReqDelete_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqDelete_Action( ctx );
+  RtemsTimerReqDelete_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
+  RtemsTimerReqDelete_Post_Name_Check( ctx, ctx->Map.entry.Post_Name );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqDelete( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerReqDelete, &RtemsTimerReqDelete_Fixture )
+{
+  RtemsTimerReqDelete_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqDelete_Pre_Id_NoObj;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqDelete_Pre_Id_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    ctx->Map.entry = RtemsTimerReqDelete_PopEntry( ctx );
+    RtemsTimerReqDelete_Prepare( ctx );
+    RtemsTimerReqDelete_TestVariant( ctx );
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-fire-after.c b/testsuites/validation/tc-timer-fire-after.c
new file mode 100644
index 0000000000..980ecdde2d
--- /dev/null
+++ b/testsuites/validation/tc-timer-fire-after.c
@@ -0,0 +1,1162 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqFireAfter
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqFireAfter \
+ *   spec:/rtems/timer/req/fire-after
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqFireAfter_Pre_Ticks_Valid,
+  RtemsTimerReqFireAfter_Pre_Ticks_Is0,
+  RtemsTimerReqFireAfter_Pre_Ticks_NA
+} RtemsTimerReqFireAfter_Pre_Ticks;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Pre_Routine_Valid,
+  RtemsTimerReqFireAfter_Pre_Routine_Null,
+  RtemsTimerReqFireAfter_Pre_Routine_NA
+} RtemsTimerReqFireAfter_Pre_Routine;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Pre_Id_Valid,
+  RtemsTimerReqFireAfter_Pre_Id_Invalid,
+  RtemsTimerReqFireAfter_Pre_Id_NA
+} RtemsTimerReqFireAfter_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Pre_Context_None,
+  RtemsTimerReqFireAfter_Pre_Context_Interrupt,
+  RtemsTimerReqFireAfter_Pre_Context_Server,
+  RtemsTimerReqFireAfter_Pre_Context_NA
+} RtemsTimerReqFireAfter_Pre_Context;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Pre_Clock_None,
+  RtemsTimerReqFireAfter_Pre_Clock_Ticks,
+  RtemsTimerReqFireAfter_Pre_Clock_Realtime,
+  RtemsTimerReqFireAfter_Pre_Clock_NA
+} RtemsTimerReqFireAfter_Pre_Clock;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Pre_State_Inactive,
+  RtemsTimerReqFireAfter_Pre_State_Scheduled,
+  RtemsTimerReqFireAfter_Pre_State_Pending,
+  RtemsTimerReqFireAfter_Pre_State_NA
+} RtemsTimerReqFireAfter_Pre_State;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_Status_Ok,
+  RtemsTimerReqFireAfter_Post_Status_InvId,
+  RtemsTimerReqFireAfter_Post_Status_InvAddr,
+  RtemsTimerReqFireAfter_Post_Status_InvNum,
+  RtemsTimerReqFireAfter_Post_Status_NA
+} RtemsTimerReqFireAfter_Post_Status;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_Context_None,
+  RtemsTimerReqFireAfter_Post_Context_Interrupt,
+  RtemsTimerReqFireAfter_Post_Context_Server,
+  RtemsTimerReqFireAfter_Post_Context_Nop,
+  RtemsTimerReqFireAfter_Post_Context_NA
+} RtemsTimerReqFireAfter_Post_Context;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_Clock_None,
+  RtemsTimerReqFireAfter_Post_Clock_Ticks,
+  RtemsTimerReqFireAfter_Post_Clock_Realtime,
+  RtemsTimerReqFireAfter_Post_Clock_Nop,
+  RtemsTimerReqFireAfter_Post_Clock_NA
+} RtemsTimerReqFireAfter_Post_Clock;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_State_Scheduled,
+  RtemsTimerReqFireAfter_Post_State_Nop,
+  RtemsTimerReqFireAfter_Post_State_NA
+} RtemsTimerReqFireAfter_Post_State;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_Interval_Param,
+  RtemsTimerReqFireAfter_Post_Interval_Nop,
+  RtemsTimerReqFireAfter_Post_Interval_NA
+} RtemsTimerReqFireAfter_Post_Interval;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_Routine_Param,
+  RtemsTimerReqFireAfter_Post_Routine_Nop,
+  RtemsTimerReqFireAfter_Post_Routine_NA
+} RtemsTimerReqFireAfter_Post_Routine;
+
+typedef enum {
+  RtemsTimerReqFireAfter_Post_UserData_Param,
+  RtemsTimerReqFireAfter_Post_UserData_Nop,
+  RtemsTimerReqFireAfter_Post_UserData_NA
+} RtemsTimerReqFireAfter_Post_UserData;
+
+typedef struct {
+  uint32_t Skip : 1;
+  uint32_t Pre_Ticks_NA : 1;
+  uint32_t Pre_Routine_NA : 1;
+  uint32_t Pre_Id_NA : 1;
+  uint32_t Pre_Context_NA : 1;
+  uint32_t Pre_Clock_NA : 1;
+  uint32_t Pre_State_NA : 1;
+  uint32_t Post_Status : 3;
+  uint32_t Post_Context : 3;
+  uint32_t Post_Clock : 3;
+  uint32_t Post_State : 2;
+  uint32_t Post_Interval : 2;
+  uint32_t Post_Routine : 2;
+  uint32_t Post_UserData : 2;
+} RtemsTimerReqFireAfter_Entry;
+
+typedef enum {
+  PRE_NONE      = 0,
+  PRE_INTERRUPT = 1,
+  PRE_SERVER    = 2
+} PreConditionContext;
+
+typedef enum {
+  SCHEDULE_NONE  = 0,
+  SCHEDULE_SOON  = 1,
+  SCHEDULE_LATER = 2,
+  SCHEDULE_MAX   = 5
+} Scheduling_Ticks;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/fire-after test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains a valid id of a timer.
+   */
+  rtems_id timer_id;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id id_param;
+
+  /**
+   * @brief This member specifies the ``ticks`` parameter for the action.
+   */
+  rtems_interval ticks_param;
+
+  /**
+   * @brief This member specifies the ``routine`` parameter for the action.
+   */
+  rtems_timer_service_routine_entry routine_param;
+
+  /**
+   * @brief This member contains the returned status code of the action.
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member contains a counter for invocations of the Timer Service
+   *   Routine.
+   */
+  int invocations;
+
+  /**
+   * @brief Function TriggerTimer() is used to figure out how many ticks (see
+   *   tick) are needed till the Timer Service Routine gets executed. This
+   *   member contains the number of ticks needed to fire the Timer Service
+   *   Routine.
+   */
+  Scheduling_Ticks ticks_till_fire;
+
+  /**
+   * @brief This member contains the user data given to the Timer Service
+   *   Routine when called.
+   */
+  void *routine_user_data;
+
+  /**
+   * @brief This member specifies which pre-condition context (none, interrupt
+   *   context, server context) must be created before the
+   *   rtems_timer_fire_after() action gets executed.
+   */
+  PreConditionContext pre_cond_contex;
+
+  /**
+   * @brief This member stores internal clock and context settings of the timer
+   *   before the execution of the test action.
+   */
+  Timer_Classes pre_class;
+
+  /**
+   * @brief This member stores the state of the timer before the execution of
+   *   the test action.
+   */
+  Timer_States pre_state;
+
+  /**
+   * @brief This member stores the state of the timer after the execution of
+   *   the test action.
+   */
+  Timer_States post_state;
+
+  /**
+   * @brief This member stores the scheduling data of the timer before the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data pre_scheduling_data;
+
+  /**
+   * @brief This member stores the scheduling data of the timer after the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data post_scheduling_data;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 6 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqFireAfter_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqFireAfter_Context;
+
+static RtemsTimerReqFireAfter_Context
+  RtemsTimerReqFireAfter_Instance;
+
+static const char * const RtemsTimerReqFireAfter_PreDesc_Ticks[] = {
+  "Valid",
+  "Is0",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireAfter_PreDesc_Routine[] = {
+  "Valid",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireAfter_PreDesc_Id[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireAfter_PreDesc_Context[] = {
+  "None",
+  "Interrupt",
+  "Server",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireAfter_PreDesc_Clock[] = {
+  "None",
+  "Ticks",
+  "Realtime",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireAfter_PreDesc_State[] = {
+  "Inactive",
+  "Scheduled",
+  "Pending",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqFireAfter_PreDesc[] = {
+  RtemsTimerReqFireAfter_PreDesc_Ticks,
+  RtemsTimerReqFireAfter_PreDesc_Routine,
+  RtemsTimerReqFireAfter_PreDesc_Id,
+  RtemsTimerReqFireAfter_PreDesc_Context,
+  RtemsTimerReqFireAfter_PreDesc_Clock,
+  RtemsTimerReqFireAfter_PreDesc_State,
+  NULL
+};
+
+static const rtems_time_of_day tod_now      = { 2000, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_schedule = { 2000, 1, 1, 1, 0, 0, 0 };
+static const rtems_time_of_day tod_fire     = { 2000, 1, 2, 0, 0, 0, 0 };
+
+static Scheduling_Ticks TriggerTimer( const RtemsTimerReqFireAfter_Context *ctx )
+{
+  int ticks_fired = SCHEDULE_NONE;
+  int invocations_old = ctx->invocations;
+
+  /* Fire the timer service routine for ticks and realtime clock */
+  int i;
+  for ( i = 1; i <= SCHEDULE_MAX; ++i ) {
+    ClockTick();
+    if ( ctx->invocations > invocations_old ) {
+      ticks_fired = i;
+      break;
+    }
+  }
+
+  T_rsc_success( rtems_clock_set( &tod_fire ) );
+
+  return ticks_fired;
+}
+
+static void TimerServiceRoutine(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqFireAfter_Context *ctx = user_data;
+  ++( ctx->invocations );
+  ctx->routine_user_data = user_data;
+}
+
+static void RtemsTimerReqFireAfter_Pre_Ticks_Prepare(
+  RtemsTimerReqFireAfter_Context  *ctx,
+  RtemsTimerReqFireAfter_Pre_Ticks state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Pre_Ticks_Valid: {
+      /*
+       * While the ``ticks`` parameter is a positive (greater 0) number.
+       */
+      ctx->ticks_param = SCHEDULE_LATER;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Ticks_Is0: {
+      /*
+       * While the ``ticks`` parameter is 0.
+       */
+      ctx->ticks_param = 0;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Ticks_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Pre_Routine_Prepare(
+  RtemsTimerReqFireAfter_Context    *ctx,
+  RtemsTimerReqFireAfter_Pre_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Pre_Routine_Valid: {
+      /*
+       * While the ``routine`` parameter references an object of type
+       * rtems_timer_service_routine_entry.
+       */
+      ctx->routine_param = TimerServiceRoutine;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Routine_Null: {
+      /*
+       * While the ``routine`` parameter is NULL..
+       */
+      ctx->routine_param = NULL;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Pre_Id_Prepare(
+  RtemsTimerReqFireAfter_Context *ctx,
+  RtemsTimerReqFireAfter_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter is valid.
+       */
+      ctx->id_param = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Id_Invalid: {
+      /*
+       * While the ``id`` parameter is invalid.
+       */
+      ctx->id_param = RTEMS_ID_NONE;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Pre_Context_Prepare(
+  RtemsTimerReqFireAfter_Context    *ctx,
+  RtemsTimerReqFireAfter_Pre_Context state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Pre_Context_None: {
+      /*
+       * While the Timer Service Routine has never been scheduled since
+       * creation of the timer. See also none.
+       */
+      ctx->pre_cond_contex = PRE_NONE;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Context_Interrupt: {
+      /*
+       * While the timer is in interrupt context.
+       */
+      ctx->pre_cond_contex = PRE_INTERRUPT;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Context_Server: {
+      /*
+       * While the timer is in server context.
+       */
+      ctx->pre_cond_contex = PRE_SERVER;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Pre_Clock_Prepare(
+  RtemsTimerReqFireAfter_Context  *ctx,
+  RtemsTimerReqFireAfter_Pre_Clock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Pre_Clock_None: {
+      /*
+       * While the timer has never been scheduled since creation of the timer.
+       */
+      T_eq_int( ctx->pre_cond_contex, PRE_NONE );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Clock_Ticks: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * ticks based clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Clock_Realtime: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * realtime clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Pre_State_Prepare(
+  RtemsTimerReqFireAfter_Context  *ctx,
+  RtemsTimerReqFireAfter_Pre_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Pre_State_Inactive: {
+      /*
+       * While the timer is in inactive state.
+       */
+      TriggerTimer( ctx );
+      T_eq_int(
+        ctx->invocations,
+        ( ctx->pre_cond_contex == PRE_NONE ) ? 0 : 1
+      );
+      ctx->invocations = 0;
+      ctx->pre_state = TIMER_INACTIVE;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_State_Scheduled: {
+      /*
+       * While the timer is in scheduled state.
+       */
+      /* The timer was already scheduled in the "Clock" pre-conditions. */
+      ctx->pre_state = TIMER_SCHEDULED;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_State_Pending: {
+      /*
+       * While the timer is in pending state.
+       */
+      T_rsc_success( rtems_task_suspend( GetTimerServerTaskId() ) );
+      TriggerTimer( ctx );
+      T_eq_int( ctx->invocations, 0 );
+      ctx->pre_state = TIMER_PENDING;
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Pre_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_Status_Check(
+  RtemsTimerReqFireAfter_Context    *ctx,
+  RtemsTimerReqFireAfter_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_fire_after() shall be
+       * RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_fire_after() shall be
+       * RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Status_InvAddr: {
+      /*
+       * The return status of rtems_timer_fire_after() shall be
+       * RTEMS_INVALID_ADDRESS.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ADDRESS );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Status_InvNum: {
+      /*
+       * The return status of rtems_timer_fire_after() shall be
+       * RTEMS_INVALID_NUMBER.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_NUMBER );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_Context_Check(
+  RtemsTimerReqFireAfter_Context     *ctx,
+  RtemsTimerReqFireAfter_Post_Context state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_Context_None: {
+      /*
+       * The timer shall have never been scheduled. See also none.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Context_Interrupt: {
+      /*
+       * The timer shall be in interrupt context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, 0 );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Context_Server: {
+      /*
+       * The timer shall be in server context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, TIMER_CLASS_BIT_ON_TASK );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Context_Nop: {
+      /*
+       * Objects referenced by the parameters in the past call to
+       * rtems_timer_fire_after() shall not be accessed by the
+       * rtems_timer_fire_after() call. See also Nop.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_Clock_Check(
+  RtemsTimerReqFireAfter_Context   *ctx,
+  RtemsTimerReqFireAfter_Post_Clock state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_Clock_None: {
+      /*
+       * The timer shall have never been scheduled.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Clock_Ticks: {
+      /*
+       * The timer shall use the ticks based clock.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_TIME_OF_DAY, 0 );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Clock_Realtime: {
+      /*
+       * The timer shall use the realtime clock.
+       */
+      T_eq_int(
+        class & TIMER_CLASS_BIT_TIME_OF_DAY,
+        TIMER_CLASS_BIT_TIME_OF_DAY
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Clock_Nop: {
+      /*
+       * Objects referenced by the parameters in the past call to
+       * rtems_timer_fire_after() shall not be accessed by the
+       * rtems_timer_fire_after() call.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_State_Check(
+  RtemsTimerReqFireAfter_Context   *ctx,
+  RtemsTimerReqFireAfter_Post_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_State_Scheduled: {
+      /*
+       * The timer shall be in scheduled state.
+       */
+      ctx->ticks_till_fire = TriggerTimer( ctx );
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_State_Nop: {
+      /*
+       * Objects referenced by the parameters in the past call to
+       * rtems_timer_fire_after() shall not be accessed by the
+       * rtems_timer_fire_after() call.
+       */
+      T_eq_int( ctx->post_state, ctx->pre_state );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_Interval_Check(
+  RtemsTimerReqFireAfter_Context      *ctx,
+  RtemsTimerReqFireAfter_Post_Interval state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_Interval_Param: {
+      /*
+       * The Timer Service Routine shall be invoked the number of ticks (see
+       * tick), which are provided by the ``ticks`` parameter in the past call
+       * to rtems_timer_fire_after(), after a point in time during the
+       * execution of the rtems_timer_fire_after() call.
+       */
+      T_eq_int( ctx->ticks_till_fire, ctx->ticks_param );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Interval_Nop: {
+      /*
+       * If and when the Timer Service Routine will be invoked shall not be
+       * changed by the past call to rtems_timer_fire_after().
+       */
+      /*
+       * Whether the timer is scheduled has already been tested by the
+       * "Nop" "State" post-condition above.
+       */
+      T_eq_u32(
+        ctx->post_scheduling_data.interval,
+        ctx->pre_scheduling_data.interval
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Interval_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_Routine_Check(
+  RtemsTimerReqFireAfter_Context     *ctx,
+  RtemsTimerReqFireAfter_Post_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_Routine_Param: {
+      /*
+       * The function reference used to invoke the Timer Service Routine when
+       * the timer will fire shall be the one provided by the ``routine``
+       * parameter in the past call to rtems_timer_fire_after().
+       */
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Routine_Nop: {
+      /*
+       * The function reference used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_fire_after().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.routine,
+        ctx->pre_scheduling_data.routine
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Post_UserData_Check(
+  RtemsTimerReqFireAfter_Context      *ctx,
+  RtemsTimerReqFireAfter_Post_UserData state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireAfter_Post_UserData_Param: {
+      /*
+       * The user data argument for invoking the Timer Service Routine when the
+       * timer will fire shall be the one provided by the ``user_data``
+       * parameter in the past call to rtems_timer_fire_after().
+       */
+      T_eq_ptr( ctx->routine_user_data, ctx );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_UserData_Nop: {
+      /*
+       * The user data argument used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_fire_after().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.user_data,
+        ctx->pre_scheduling_data.user_data
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireAfter_Post_UserData_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireAfter_Setup( RtemsTimerReqFireAfter_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_initiate_server(
+    RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_ATTRIBUTES
+  );
+  T_rsc_success( status );
+}
+
+static void RtemsTimerReqFireAfter_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqFireAfter_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqFireAfter_Setup( ctx );
+}
+
+/**
+ * @brief Make sure the timer server is not running and the realtime clock is
+ *   not set after this test.
+ */
+static void RtemsTimerReqFireAfter_Teardown(
+  RtemsTimerReqFireAfter_Context *ctx
+)
+{
+  DeleteTimerServer();
+  UnsetClock();
+}
+
+static void RtemsTimerReqFireAfter_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqFireAfter_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqFireAfter_Teardown( ctx );
+}
+
+static void RtemsTimerReqFireAfter_Prepare(
+  RtemsTimerReqFireAfter_Context *ctx
+)
+{
+  rtems_status_code status;
+  status = rtems_timer_create(
+    rtems_build_name( 'T', 'I', 'M', 'E' ),
+    &ctx->timer_id
+  );
+  T_rsc_success( status );
+
+  ctx->invocations               = 0;
+  ctx->ticks_till_fire           = SCHEDULE_NONE;
+  ctx->routine_user_data         = NULL;
+  T_rsc_success( rtems_clock_set( &tod_now ) );
+}
+
+static void RtemsTimerReqFireAfter_Action(
+  RtemsTimerReqFireAfter_Context *ctx
+)
+{
+  GetTimerSchedulingData( ctx->timer_id, &ctx->pre_scheduling_data );
+  ctx->pre_class = GetTimerClass( ctx->timer_id );
+  ctx->status = rtems_timer_fire_after(
+    ctx->id_param,
+    ctx->ticks_param,
+    ctx->routine_param,
+    ctx
+  );
+  ctx->post_state = GetTimerState( ctx->timer_id );
+  GetTimerSchedulingData( ctx->timer_id, &ctx->post_scheduling_data );
+  /* Ignoring return status: the timer server task may be suspended or not. */
+  rtems_task_resume( GetTimerServerTaskId() );
+}
+
+static void RtemsTimerReqFireAfter_Cleanup(
+  RtemsTimerReqFireAfter_Context *ctx
+)
+{
+  T_rsc_success( rtems_timer_delete( ctx->timer_id ) );
+}
+
+static const RtemsTimerReqFireAfter_Entry
+RtemsTimerReqFireAfter_Entries[] = {
+  { 1, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireAfter_Post_Status_NA,
+    RtemsTimerReqFireAfter_Post_Context_NA,
+    RtemsTimerReqFireAfter_Post_Clock_NA, RtemsTimerReqFireAfter_Post_State_NA,
+    RtemsTimerReqFireAfter_Post_Interval_NA,
+    RtemsTimerReqFireAfter_Post_Routine_NA,
+    RtemsTimerReqFireAfter_Post_UserData_NA },
+  { 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireAfter_Post_Status_InvNum,
+    RtemsTimerReqFireAfter_Post_Context_Nop,
+    RtemsTimerReqFireAfter_Post_Clock_Nop,
+    RtemsTimerReqFireAfter_Post_State_Nop,
+    RtemsTimerReqFireAfter_Post_Interval_Nop,
+    RtemsTimerReqFireAfter_Post_Routine_Nop,
+    RtemsTimerReqFireAfter_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireAfter_Post_Status_InvAddr,
+    RtemsTimerReqFireAfter_Post_Context_Nop,
+    RtemsTimerReqFireAfter_Post_Clock_Nop,
+    RtemsTimerReqFireAfter_Post_State_Nop,
+    RtemsTimerReqFireAfter_Post_Interval_Nop,
+    RtemsTimerReqFireAfter_Post_Routine_Nop,
+    RtemsTimerReqFireAfter_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireAfter_Post_Status_Ok,
+    RtemsTimerReqFireAfter_Post_Context_Interrupt,
+    RtemsTimerReqFireAfter_Post_Clock_Ticks,
+    RtemsTimerReqFireAfter_Post_State_Scheduled,
+    RtemsTimerReqFireAfter_Post_Interval_Param,
+    RtemsTimerReqFireAfter_Post_Routine_Param,
+    RtemsTimerReqFireAfter_Post_UserData_Param },
+  { 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireAfter_Post_Status_InvId,
+    RtemsTimerReqFireAfter_Post_Context_Nop,
+    RtemsTimerReqFireAfter_Post_Clock_Nop,
+    RtemsTimerReqFireAfter_Post_State_Nop,
+    RtemsTimerReqFireAfter_Post_Interval_Nop,
+    RtemsTimerReqFireAfter_Post_Routine_Nop,
+    RtemsTimerReqFireAfter_Post_UserData_Nop }
+};
+
+static const uint8_t
+RtemsTimerReqFireAfter_Map[] = {
+  3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 3,
+  3, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4, 4, 4,
+  4, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0, 0, 2, 2, 2,
+  2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0, 0, 2, 2,
+  2, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1,
+  1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0,
+  1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0,
+  0, 0, 1, 1, 1, 1, 1, 1
+};
+
+static size_t RtemsTimerReqFireAfter_Scope( void *arg, char *buf, size_t n )
+{
+  RtemsTimerReqFireAfter_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope( RtemsTimerReqFireAfter_PreDesc, buf, n, ctx->Map.pcs );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqFireAfter_Fixture = {
+  .setup = RtemsTimerReqFireAfter_Setup_Wrap,
+  .stop = NULL,
+  .teardown = RtemsTimerReqFireAfter_Teardown_Wrap,
+  .scope = RtemsTimerReqFireAfter_Scope,
+  .initial_context = &RtemsTimerReqFireAfter_Instance
+};
+
+static inline RtemsTimerReqFireAfter_Entry RtemsTimerReqFireAfter_PopEntry(
+  RtemsTimerReqFireAfter_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqFireAfter_Entries[
+    RtemsTimerReqFireAfter_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqFireAfter_TestVariant(
+  RtemsTimerReqFireAfter_Context *ctx
+)
+{
+  RtemsTimerReqFireAfter_Pre_Ticks_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqFireAfter_Pre_Routine_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqFireAfter_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqFireAfter_Pre_Context_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqFireAfter_Pre_Clock_Prepare( ctx, ctx->Map.pcs[ 4 ] );
+  RtemsTimerReqFireAfter_Pre_State_Prepare( ctx, ctx->Map.pcs[ 5 ] );
+  RtemsTimerReqFireAfter_Action( ctx );
+  RtemsTimerReqFireAfter_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
+  RtemsTimerReqFireAfter_Post_Context_Check(
+    ctx,
+    ctx->Map.entry.Post_Context
+  );
+  RtemsTimerReqFireAfter_Post_Clock_Check( ctx, ctx->Map.entry.Post_Clock );
+  RtemsTimerReqFireAfter_Post_State_Check( ctx, ctx->Map.entry.Post_State );
+  RtemsTimerReqFireAfter_Post_Interval_Check(
+    ctx,
+    ctx->Map.entry.Post_Interval
+  );
+  RtemsTimerReqFireAfter_Post_Routine_Check(
+    ctx,
+    ctx->Map.entry.Post_Routine
+  );
+  RtemsTimerReqFireAfter_Post_UserData_Check(
+    ctx,
+    ctx->Map.entry.Post_UserData
+  );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqFireAfter( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerReqFireAfter, &RtemsTimerReqFireAfter_Fixture )
+{
+  RtemsTimerReqFireAfter_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqFireAfter_Pre_Ticks_Valid;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqFireAfter_Pre_Ticks_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqFireAfter_Pre_Routine_Valid;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqFireAfter_Pre_Routine_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqFireAfter_Pre_Id_Valid;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqFireAfter_Pre_Id_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqFireAfter_Pre_Context_None;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqFireAfter_Pre_Context_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          for (
+            ctx->Map.pcs[ 4 ] = RtemsTimerReqFireAfter_Pre_Clock_None;
+            ctx->Map.pcs[ 4 ] < RtemsTimerReqFireAfter_Pre_Clock_NA;
+            ++ctx->Map.pcs[ 4 ]
+          ) {
+            for (
+              ctx->Map.pcs[ 5 ] = RtemsTimerReqFireAfter_Pre_State_Inactive;
+              ctx->Map.pcs[ 5 ] < RtemsTimerReqFireAfter_Pre_State_NA;
+              ++ctx->Map.pcs[ 5 ]
+            ) {
+              ctx->Map.entry = RtemsTimerReqFireAfter_PopEntry( ctx );
+
+              if ( ctx->Map.entry.Skip ) {
+                continue;
+              }
+
+              RtemsTimerReqFireAfter_Prepare( ctx );
+              RtemsTimerReqFireAfter_TestVariant( ctx );
+              RtemsTimerReqFireAfter_Cleanup( ctx );
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-fire-when.c b/testsuites/validation/tc-timer-fire-when.c
new file mode 100644
index 0000000000..8d5584ebf0
--- /dev/null
+++ b/testsuites/validation/tc-timer-fire-when.c
@@ -0,0 +1,1286 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqFireWhen
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqFireWhen spec:/rtems/timer/req/fire-when
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_RtClock_Set,
+  RtemsTimerReqFireWhen_Pre_RtClock_Unset,
+  RtemsTimerReqFireWhen_Pre_RtClock_NA
+} RtemsTimerReqFireWhen_Pre_RtClock;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_Routine_Valid,
+  RtemsTimerReqFireWhen_Pre_Routine_Null,
+  RtemsTimerReqFireWhen_Pre_Routine_NA
+} RtemsTimerReqFireWhen_Pre_Routine;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_WallTime_Valid,
+  RtemsTimerReqFireWhen_Pre_WallTime_Invalid,
+  RtemsTimerReqFireWhen_Pre_WallTime_Past,
+  RtemsTimerReqFireWhen_Pre_WallTime_Null,
+  RtemsTimerReqFireWhen_Pre_WallTime_NA
+} RtemsTimerReqFireWhen_Pre_WallTime;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_Id_Valid,
+  RtemsTimerReqFireWhen_Pre_Id_Invalid,
+  RtemsTimerReqFireWhen_Pre_Id_NA
+} RtemsTimerReqFireWhen_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_Context_None,
+  RtemsTimerReqFireWhen_Pre_Context_Interrupt,
+  RtemsTimerReqFireWhen_Pre_Context_Server,
+  RtemsTimerReqFireWhen_Pre_Context_NA
+} RtemsTimerReqFireWhen_Pre_Context;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_Clock_None,
+  RtemsTimerReqFireWhen_Pre_Clock_Ticks,
+  RtemsTimerReqFireWhen_Pre_Clock_Realtime,
+  RtemsTimerReqFireWhen_Pre_Clock_NA
+} RtemsTimerReqFireWhen_Pre_Clock;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Pre_State_Inactive,
+  RtemsTimerReqFireWhen_Pre_State_Scheduled,
+  RtemsTimerReqFireWhen_Pre_State_Pending,
+  RtemsTimerReqFireWhen_Pre_State_NA
+} RtemsTimerReqFireWhen_Pre_State;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_Status_Ok,
+  RtemsTimerReqFireWhen_Post_Status_NotDef,
+  RtemsTimerReqFireWhen_Post_Status_InvId,
+  RtemsTimerReqFireWhen_Post_Status_InvAddr,
+  RtemsTimerReqFireWhen_Post_Status_InvClock,
+  RtemsTimerReqFireWhen_Post_Status_NA
+} RtemsTimerReqFireWhen_Post_Status;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_Context_None,
+  RtemsTimerReqFireWhen_Post_Context_Interrupt,
+  RtemsTimerReqFireWhen_Post_Context_Server,
+  RtemsTimerReqFireWhen_Post_Context_Nop,
+  RtemsTimerReqFireWhen_Post_Context_NA
+} RtemsTimerReqFireWhen_Post_Context;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_Clock_None,
+  RtemsTimerReqFireWhen_Post_Clock_Ticks,
+  RtemsTimerReqFireWhen_Post_Clock_Realtime,
+  RtemsTimerReqFireWhen_Post_Clock_Nop,
+  RtemsTimerReqFireWhen_Post_Clock_NA
+} RtemsTimerReqFireWhen_Post_Clock;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_State_Scheduled,
+  RtemsTimerReqFireWhen_Post_State_Nop,
+  RtemsTimerReqFireWhen_Post_State_NA
+} RtemsTimerReqFireWhen_Post_State;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_WallTime_Param,
+  RtemsTimerReqFireWhen_Post_WallTime_Nop,
+  RtemsTimerReqFireWhen_Post_WallTime_NA
+} RtemsTimerReqFireWhen_Post_WallTime;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_Routine_Param,
+  RtemsTimerReqFireWhen_Post_Routine_Nop,
+  RtemsTimerReqFireWhen_Post_Routine_NA
+} RtemsTimerReqFireWhen_Post_Routine;
+
+typedef enum {
+  RtemsTimerReqFireWhen_Post_UserData_Param,
+  RtemsTimerReqFireWhen_Post_UserData_Nop,
+  RtemsTimerReqFireWhen_Post_UserData_NA
+} RtemsTimerReqFireWhen_Post_UserData;
+
+typedef struct {
+  uint32_t Skip : 1;
+  uint32_t Pre_RtClock_NA : 1;
+  uint32_t Pre_Routine_NA : 1;
+  uint32_t Pre_WallTime_NA : 1;
+  uint32_t Pre_Id_NA : 1;
+  uint32_t Pre_Context_NA : 1;
+  uint32_t Pre_Clock_NA : 1;
+  uint32_t Pre_State_NA : 1;
+  uint32_t Post_Status : 3;
+  uint32_t Post_Context : 3;
+  uint32_t Post_Clock : 3;
+  uint32_t Post_State : 2;
+  uint32_t Post_WallTime : 2;
+  uint32_t Post_Routine : 2;
+  uint32_t Post_UserData : 2;
+} RtemsTimerReqFireWhen_Entry;
+
+typedef enum {
+  PRE_NONE      = 0,
+  PRE_INTERRUPT = 1,
+  PRE_SERVER    = 2
+} PreConditionContext;
+
+typedef enum {
+  SCHEDULE_NONE  = 0,
+  SCHEDULE_SOON  = 1,
+  SCHEDULE_MAX   = 5
+} Scheduling_Ticks;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/fire-when test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains a valid id of a timer.
+   */
+  rtems_id timer_id;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id id_param;
+
+  /**
+   * @brief This member specifies the ``wall_time`` parameter for the action.
+   */
+  const rtems_time_of_day *wall_time_param;
+
+  /**
+   * @brief This member specifies the ``routine`` parameter for the action.
+   */
+  rtems_timer_service_routine_entry routine_param;
+
+  /**
+   * @brief This member contains the returned status code of the action.
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member contains a counter of invocations of the Timer Service
+   *   Routine.
+   */
+  int invocations;
+
+  /**
+   * @brief Function TriggerTimer() is used to figure out when the Timer
+   *   Service Routine gets executed. This member contains the time-of-day when
+   *   the Timer Service Routine fires (see fire).
+   */
+  rtems_time_of_day tod_till_fire;
+
+  /**
+   * @brief This member contains the user data given to the Timer Service
+   *   Routine when called.
+   */
+  void *routine_user_data;
+
+  /**
+   * @brief This member specifies which pre-condition context (none, interrupt
+   *   context, server context) must be created before the
+   *   rtems_timer_fire_when() action gets executed.
+   */
+  PreConditionContext pre_cond_contex;
+
+  /**
+   * @brief This member specifies the pre-condition state of the realtime
+   *   clock. It should either be set to the value referenced by pre_cond_tod
+   *   or if NULL, then the realtime clock should be not set.
+   */
+  const rtems_time_of_day *pre_cond_tod;
+
+  /**
+   * @brief This member stores internal clock and context settings of the timer
+   *   before the execution of the test action.
+   */
+  Timer_Classes pre_class;
+
+  /**
+   * @brief This member stores the state of the timer before the execution of
+   *   the test action.
+   */
+  Timer_States pre_state;
+
+  /**
+   * @brief This member stores the state of the timer after the execution of
+   *   the test action.
+   */
+  Timer_States post_state;
+
+  /**
+   * @brief This member stores the scheduling data of the timer before the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data pre_scheduling_data;
+
+  /**
+   * @brief This member stores the scheduling data of the timer after the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data post_scheduling_data;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 7 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqFireWhen_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqFireWhen_Context;
+
+static RtemsTimerReqFireWhen_Context
+  RtemsTimerReqFireWhen_Instance;
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_RtClock[] = {
+  "Set",
+  "Unset",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_Routine[] = {
+  "Valid",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_WallTime[] = {
+  "Valid",
+  "Invalid",
+  "Past",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_Id[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_Context[] = {
+  "None",
+  "Interrupt",
+  "Server",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_Clock[] = {
+  "None",
+  "Ticks",
+  "Realtime",
+  "NA"
+};
+
+static const char * const RtemsTimerReqFireWhen_PreDesc_State[] = {
+  "Inactive",
+  "Scheduled",
+  "Pending",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqFireWhen_PreDesc[] = {
+  RtemsTimerReqFireWhen_PreDesc_RtClock,
+  RtemsTimerReqFireWhen_PreDesc_Routine,
+  RtemsTimerReqFireWhen_PreDesc_WallTime,
+  RtemsTimerReqFireWhen_PreDesc_Id,
+  RtemsTimerReqFireWhen_PreDesc_Context,
+  RtemsTimerReqFireWhen_PreDesc_Clock,
+  RtemsTimerReqFireWhen_PreDesc_State,
+  NULL
+};
+
+static const rtems_time_of_day tod_now      = { 2000, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_schedule = { 2000, 1, 1, 5, 0, 0, 0 };
+static const rtems_time_of_day tod_invalid  = { 1985, 1, 1, 0, 0, 0, 0 };
+/*
+ * rtems_fire_when() ignores ticks and treads all wall times in the
+ * current second like being in the "past". This border case is tested.
+ */
+static const rtems_time_of_day tod_past     = { 2000, 1, 1, 0, 0, 0, 50 };
+
+static void TriggerTimer(
+  const RtemsTimerReqFireWhen_Context *ctx,
+  rtems_time_of_day *tod_fire
+)
+{
+  rtems_time_of_day tod = tod_now;
+  int invocations_old = ctx->invocations;
+  int i;
+
+  /* Fire the timer service routine for ticks and realtime clock */
+  for ( i = 1; i <= SCHEDULE_MAX; ++i ) {
+    ClockTick();
+  }
+
+  for ( i = 1; i < 24; ++i ) {
+    tod.hour = i;
+    T_rsc_success( rtems_clock_set( &tod ) );
+    if ( tod_fire != NULL && ctx->invocations > invocations_old ) {
+      *tod_fire = tod;
+      break;
+    }
+  }
+}
+
+static void TimerServiceRoutine(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqFireWhen_Context *ctx = user_data;
+  ++( ctx->invocations );
+  ctx->routine_user_data = user_data;
+}
+
+static void RtemsTimerReqFireWhen_Pre_RtClock_Prepare(
+  RtemsTimerReqFireWhen_Context    *ctx,
+  RtemsTimerReqFireWhen_Pre_RtClock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_RtClock_Set: {
+      /*
+       * While the realtime clock is set to a valid time-of-day.
+       */
+      ctx->pre_cond_tod = &tod_now;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_RtClock_Unset: {
+      /*
+       * While the realtime clock has never been set.
+       */
+      ctx->pre_cond_tod = NULL;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_RtClock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Pre_Routine_Prepare(
+  RtemsTimerReqFireWhen_Context    *ctx,
+  RtemsTimerReqFireWhen_Pre_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_Routine_Valid: {
+      /*
+       * While the ``routine`` parameter references an object of type
+       * rtems_timer_service_routine_entry.
+       */
+      ctx->routine_param = TimerServiceRoutine;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Routine_Null: {
+      /*
+       * While the ``routine`` parameter is NULL..
+       */
+      ctx->routine_param = NULL;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Pre_WallTime_Prepare(
+  RtemsTimerReqFireWhen_Context     *ctx,
+  RtemsTimerReqFireWhen_Pre_WallTime state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_WallTime_Valid: {
+      /*
+       * While the ``wall_time`` parameter references a time at least one
+       * second in the future but not later than the last second of the year
+       * 2105. (Times after 2105 are invalid.)
+       */
+      ctx->wall_time_param = &tod_schedule;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_WallTime_Invalid: {
+      /*
+       * While the ``wall_time`` parameter is invalid.
+       */
+      ctx->wall_time_param = &tod_invalid;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_WallTime_Past: {
+      /*
+       * While the ``wall_time`` parameter references a time in the current
+       * second or in the past but not earlier than 1988. (Times before 1988
+       * are invalid.)
+       */
+      ctx->wall_time_param = &tod_past;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_WallTime_Null: {
+      /*
+       * While the ``wall_time`` parameter is 0.
+       */
+      ctx->wall_time_param = NULL;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_WallTime_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Pre_Id_Prepare(
+  RtemsTimerReqFireWhen_Context *ctx,
+  RtemsTimerReqFireWhen_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter is valid.
+       */
+      ctx->id_param = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Id_Invalid: {
+      /*
+       * While the ``id`` parameter is invalid.
+       */
+      ctx->id_param = RTEMS_ID_NONE;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Pre_Context_Prepare(
+  RtemsTimerReqFireWhen_Context    *ctx,
+  RtemsTimerReqFireWhen_Pre_Context state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_Context_None: {
+      /*
+       * While the Timer Service Routine has never been scheduled since
+       * creation of the timer. See also none.
+       */
+      ctx->pre_cond_contex = PRE_NONE;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Context_Interrupt: {
+      /*
+       * While the timer is in interrupt context.
+       */
+      ctx->pre_cond_contex = PRE_INTERRUPT;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Context_Server: {
+      /*
+       * While the timer is in server context.
+       */
+      ctx->pre_cond_contex = PRE_SERVER;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Pre_Clock_Prepare(
+  RtemsTimerReqFireWhen_Context  *ctx,
+  RtemsTimerReqFireWhen_Pre_Clock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_Clock_None: {
+      /*
+       * While the timer has never been scheduled since creation of the timer.
+       */
+      T_eq_int( ctx->pre_cond_contex, PRE_NONE );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Clock_Ticks: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * ticks based clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Clock_Realtime: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * realtime clock.
+       */
+      rtems_status_code status;
+      T_rsc_success( rtems_clock_set( &tod_now ) );
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Pre_State_Prepare(
+  RtemsTimerReqFireWhen_Context  *ctx,
+  RtemsTimerReqFireWhen_Pre_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Pre_State_Inactive: {
+      /*
+       * While the timer is in inactive state.
+       */
+      TriggerTimer( ctx, NULL );
+      T_eq_int(
+        ctx->invocations,
+        ( ctx->pre_cond_contex == PRE_NONE ) ? 0 : 1
+      );
+      ctx->invocations = 0;
+      ctx->pre_state = TIMER_INACTIVE;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_State_Scheduled: {
+      /*
+       * While the timer is in scheduled state.
+       */
+      /* The timer was already scheduled in the "Clock" pre-conditions. */
+      ctx->pre_state = TIMER_SCHEDULED;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_State_Pending: {
+      /*
+       * While the timer is in pending state.
+       */
+      T_rsc_success( rtems_task_suspend( GetTimerServerTaskId() ) );
+      TriggerTimer( ctx, NULL );
+      T_eq_int( ctx->invocations, 0 );
+      ctx->pre_state = TIMER_PENDING;
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Pre_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_Status_Check(
+  RtemsTimerReqFireWhen_Context    *ctx,
+  RtemsTimerReqFireWhen_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_fire_when() shall be
+       * RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Status_NotDef: {
+      /*
+       * The return status of rtems_timer_fire_when() shall be
+       * RTEMS_NOT_DEFINED
+       */
+      T_rsc( ctx->status, RTEMS_NOT_DEFINED );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_fire_when() shall be
+       * RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Status_InvAddr: {
+      /*
+       * The return status of rtems_timer_fire_when() shall be
+       * RTEMS_INVALID_ADDRESS.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ADDRESS );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Status_InvClock: {
+      /*
+       * The return status of rtems_timer_fire_when() shall be
+       * RTEMS_INVALID_CLOCK.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_CLOCK );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_Context_Check(
+  RtemsTimerReqFireWhen_Context     *ctx,
+  RtemsTimerReqFireWhen_Post_Context state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_Context_None: {
+      /*
+       * The timer shall have never been scheduled. See also none.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Context_Interrupt: {
+      /*
+       * The timer shall be in interrupt context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, 0 );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Context_Server: {
+      /*
+       * The timer shall be in server context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, TIMER_CLASS_BIT_ON_TASK );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Context_Nop: {
+      /*
+       * Objects referenced by parameters in the past call to
+       * rtems_timer_fire_when() shall not be accessed by the
+       * rtems_timer_fire_when() call. See also Nop.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_Clock_Check(
+  RtemsTimerReqFireWhen_Context   *ctx,
+  RtemsTimerReqFireWhen_Post_Clock state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_Clock_None: {
+      /*
+       * The timer shall have never been scheduled.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Clock_Ticks: {
+      /*
+       * The timer shall use the ticks based clock.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_TIME_OF_DAY, 0 );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Clock_Realtime: {
+      /*
+       * The timer shall use the realtime clock.
+       */
+      T_eq_int(
+        class & TIMER_CLASS_BIT_TIME_OF_DAY,
+        TIMER_CLASS_BIT_TIME_OF_DAY
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Clock_Nop: {
+      /*
+       * Objects referenced by parameters in the past call to
+       * rtems_timer_fire_when() shall not be accessed by the
+       * rtems_timer_fire_when() call.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_State_Check(
+  RtemsTimerReqFireWhen_Context   *ctx,
+  RtemsTimerReqFireWhen_Post_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_State_Scheduled: {
+      /*
+       * The timer shall be in scheduled state.
+       */
+      TriggerTimer( ctx, &ctx->tod_till_fire );
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_State_Nop: {
+      /*
+       * Objects referenced by parameters in the past call to
+       * rtems_timer_fire_when() shall not be accessed by the
+       * rtems_timer_fire_when() call.
+       */
+      T_eq_int( ctx->post_state, ctx->pre_state );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_WallTime_Check(
+  RtemsTimerReqFireWhen_Context      *ctx,
+  RtemsTimerReqFireWhen_Post_WallTime state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_WallTime_Param: {
+      /*
+       * The Timer Service Routine shall be invoked at the wall time (see
+       * realtime clock) (ignoring ticks), which was provided by the
+       * ``wall_time`` parameter in the past call to rtems_timer_fire_when().
+       */
+      T_eq_mem(
+        &ctx->tod_till_fire,
+        ctx->wall_time_param,
+        sizeof( ctx->tod_till_fire )
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_WallTime_Nop: {
+      /*
+       * If and when the Timer Service Routine will be invoked shall not be
+       * changed by the past call to rtems_timer_fire_when().
+       */
+      /*
+       * Whether the timer is scheduled has already been tested by the
+       * "Nop" "State" post-condition above.
+       */
+      T_eq_u32(
+        ctx->post_scheduling_data.interval,
+        ctx->pre_scheduling_data.interval
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_WallTime_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_Routine_Check(
+  RtemsTimerReqFireWhen_Context     *ctx,
+  RtemsTimerReqFireWhen_Post_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_Routine_Param: {
+      /*
+       * The function reference used to invoke the Timer Service Routine when
+       * the timer will fire shall be the one provided by the ``routine``
+       * parameter in the past call to rtems_timer_fire_when().
+       */
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Routine_Nop: {
+      /*
+       * The function reference used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_fire_when().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.routine,
+        ctx->pre_scheduling_data.routine
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Post_UserData_Check(
+  RtemsTimerReqFireWhen_Context      *ctx,
+  RtemsTimerReqFireWhen_Post_UserData state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqFireWhen_Post_UserData_Param: {
+      /*
+       * The user data argument for invoking the Timer Service Routine when the
+       * timer will fire shall be the one provided by the ``user_data``
+       * parameter in the past call to rtems_timer_fire_when().
+       */
+      T_eq_ptr( ctx->routine_user_data, ctx );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_UserData_Nop: {
+      /*
+       * The user data argument used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_fire_when().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.user_data,
+        ctx->pre_scheduling_data.user_data
+      );
+      break;
+    }
+
+    case RtemsTimerReqFireWhen_Post_UserData_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqFireWhen_Setup( RtemsTimerReqFireWhen_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_initiate_server(
+    RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_ATTRIBUTES
+  );
+  T_rsc_success( status );
+}
+
+static void RtemsTimerReqFireWhen_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqFireWhen_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqFireWhen_Setup( ctx );
+}
+
+/**
+ * @brief Make sure the timer server is not running and the realtime clock is
+ *   not set after this test.
+ */
+static void RtemsTimerReqFireWhen_Teardown(
+  RtemsTimerReqFireWhen_Context *ctx
+)
+{
+  DeleteTimerServer();
+  UnsetClock();
+}
+
+static void RtemsTimerReqFireWhen_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqFireWhen_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqFireWhen_Teardown( ctx );
+}
+
+static void RtemsTimerReqFireWhen_Prepare( RtemsTimerReqFireWhen_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_create(
+    rtems_build_name( 'T', 'I', 'M', 'E' ),
+    &ctx->timer_id
+  );
+  T_rsc_success( status );
+
+  ctx->invocations       = 0;
+  ctx->routine_user_data = NULL;
+}
+
+static void RtemsTimerReqFireWhen_Action( RtemsTimerReqFireWhen_Context *ctx )
+{
+  GetTimerSchedulingData( ctx->timer_id, &ctx->pre_scheduling_data );
+  ctx->pre_class = GetTimerClass( ctx->timer_id );
+  if ( ctx->pre_cond_tod == NULL ) {
+    UnsetClock();
+  } else {
+    T_rsc_success( rtems_clock_set( ctx->pre_cond_tod ) );
+  }
+  ctx->status = rtems_timer_fire_when(
+    ctx->id_param,
+    ctx->wall_time_param,
+    ctx->routine_param,
+    ctx
+  );
+  ctx->post_state = GetTimerState( ctx->timer_id );
+  GetTimerSchedulingData( ctx->timer_id, &ctx->post_scheduling_data );
+  /* Ignoring return status: the timer server task may be suspended or not. */
+  rtems_task_resume( GetTimerServerTaskId() );
+}
+
+static void RtemsTimerReqFireWhen_Cleanup( RtemsTimerReqFireWhen_Context *ctx )
+{
+  T_rsc_success( rtems_timer_delete( ctx->timer_id ) );
+}
+
+static const RtemsTimerReqFireWhen_Entry
+RtemsTimerReqFireWhen_Entries[] = {
+  { 1, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_NA,
+    RtemsTimerReqFireWhen_Post_Context_NA, RtemsTimerReqFireWhen_Post_Clock_NA,
+    RtemsTimerReqFireWhen_Post_State_NA,
+    RtemsTimerReqFireWhen_Post_WallTime_NA,
+    RtemsTimerReqFireWhen_Post_Routine_NA,
+    RtemsTimerReqFireWhen_Post_UserData_NA },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_InvAddr,
+    RtemsTimerReqFireWhen_Post_Context_Nop,
+    RtemsTimerReqFireWhen_Post_Clock_Nop, RtemsTimerReqFireWhen_Post_State_Nop,
+    RtemsTimerReqFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqFireWhen_Post_Routine_Nop,
+    RtemsTimerReqFireWhen_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_NotDef,
+    RtemsTimerReqFireWhen_Post_Context_Nop,
+    RtemsTimerReqFireWhen_Post_Clock_Nop, RtemsTimerReqFireWhen_Post_State_Nop,
+    RtemsTimerReqFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqFireWhen_Post_Routine_Nop,
+    RtemsTimerReqFireWhen_Post_UserData_Nop },
+  { 1, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_NA,
+    RtemsTimerReqFireWhen_Post_Context_NA, RtemsTimerReqFireWhen_Post_Clock_NA,
+    RtemsTimerReqFireWhen_Post_State_NA,
+    RtemsTimerReqFireWhen_Post_WallTime_NA,
+    RtemsTimerReqFireWhen_Post_Routine_NA,
+    RtemsTimerReqFireWhen_Post_UserData_NA },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_InvClock,
+    RtemsTimerReqFireWhen_Post_Context_Nop,
+    RtemsTimerReqFireWhen_Post_Clock_Nop, RtemsTimerReqFireWhen_Post_State_Nop,
+    RtemsTimerReqFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqFireWhen_Post_Routine_Nop,
+    RtemsTimerReqFireWhen_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_Ok,
+    RtemsTimerReqFireWhen_Post_Context_Interrupt,
+    RtemsTimerReqFireWhen_Post_Clock_Realtime,
+    RtemsTimerReqFireWhen_Post_State_Scheduled,
+    RtemsTimerReqFireWhen_Post_WallTime_Param,
+    RtemsTimerReqFireWhen_Post_Routine_Param,
+    RtemsTimerReqFireWhen_Post_UserData_Param },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqFireWhen_Post_Status_InvId,
+    RtemsTimerReqFireWhen_Post_Context_Nop,
+    RtemsTimerReqFireWhen_Post_Clock_Nop, RtemsTimerReqFireWhen_Post_State_Nop,
+    RtemsTimerReqFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqFireWhen_Post_Routine_Nop,
+    RtemsTimerReqFireWhen_Post_UserData_Nop }
+};
+
+static const uint8_t
+RtemsTimerReqFireWhen_Map[] = {
+  5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 5, 5, 0, 0, 0, 0, 5, 5, 5, 5, 5,
+  5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 6, 6, 0, 0, 0, 0, 6, 6, 6, 6,
+  6, 6, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4, 4,
+  4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4,
+  4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4,
+  4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0,
+  4, 4, 4, 4, 4, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0,
+  0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0,
+  0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1,
+  0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1,
+  1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
+  1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+  0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+  1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3, 2,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3, 3,
+  2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3, 3,
+  3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2, 3,
+  3, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2, 2,
+  3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2, 2,
+  2, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0, 2,
+  2, 2, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 3, 3, 3, 0, 0, 0,
+  2, 2, 2, 3, 3, 3
+};
+
+static size_t RtemsTimerReqFireWhen_Scope( void *arg, char *buf, size_t n )
+{
+  RtemsTimerReqFireWhen_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope( RtemsTimerReqFireWhen_PreDesc, buf, n, ctx->Map.pcs );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqFireWhen_Fixture = {
+  .setup = RtemsTimerReqFireWhen_Setup_Wrap,
+  .stop = NULL,
+  .teardown = RtemsTimerReqFireWhen_Teardown_Wrap,
+  .scope = RtemsTimerReqFireWhen_Scope,
+  .initial_context = &RtemsTimerReqFireWhen_Instance
+};
+
+static inline RtemsTimerReqFireWhen_Entry RtemsTimerReqFireWhen_PopEntry(
+  RtemsTimerReqFireWhen_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqFireWhen_Entries[
+    RtemsTimerReqFireWhen_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqFireWhen_TestVariant(
+  RtemsTimerReqFireWhen_Context *ctx
+)
+{
+  RtemsTimerReqFireWhen_Pre_RtClock_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqFireWhen_Pre_Routine_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqFireWhen_Pre_WallTime_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqFireWhen_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqFireWhen_Pre_Context_Prepare( ctx, ctx->Map.pcs[ 4 ] );
+  RtemsTimerReqFireWhen_Pre_Clock_Prepare( ctx, ctx->Map.pcs[ 5 ] );
+  RtemsTimerReqFireWhen_Pre_State_Prepare( ctx, ctx->Map.pcs[ 6 ] );
+  RtemsTimerReqFireWhen_Action( ctx );
+  RtemsTimerReqFireWhen_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
+  RtemsTimerReqFireWhen_Post_Context_Check( ctx, ctx->Map.entry.Post_Context );
+  RtemsTimerReqFireWhen_Post_Clock_Check( ctx, ctx->Map.entry.Post_Clock );
+  RtemsTimerReqFireWhen_Post_State_Check( ctx, ctx->Map.entry.Post_State );
+  RtemsTimerReqFireWhen_Post_WallTime_Check(
+    ctx,
+    ctx->Map.entry.Post_WallTime
+  );
+  RtemsTimerReqFireWhen_Post_Routine_Check( ctx, ctx->Map.entry.Post_Routine );
+  RtemsTimerReqFireWhen_Post_UserData_Check(
+    ctx,
+    ctx->Map.entry.Post_UserData
+  );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqFireWhen( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerReqFireWhen, &RtemsTimerReqFireWhen_Fixture )
+{
+  RtemsTimerReqFireWhen_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqFireWhen_Pre_RtClock_Set;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqFireWhen_Pre_RtClock_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqFireWhen_Pre_Routine_Valid;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqFireWhen_Pre_Routine_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqFireWhen_Pre_WallTime_Valid;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqFireWhen_Pre_WallTime_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqFireWhen_Pre_Id_Valid;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqFireWhen_Pre_Id_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          for (
+            ctx->Map.pcs[ 4 ] = RtemsTimerReqFireWhen_Pre_Context_None;
+            ctx->Map.pcs[ 4 ] < RtemsTimerReqFireWhen_Pre_Context_NA;
+            ++ctx->Map.pcs[ 4 ]
+          ) {
+            for (
+              ctx->Map.pcs[ 5 ] = RtemsTimerReqFireWhen_Pre_Clock_None;
+              ctx->Map.pcs[ 5 ] < RtemsTimerReqFireWhen_Pre_Clock_NA;
+              ++ctx->Map.pcs[ 5 ]
+            ) {
+              for (
+                ctx->Map.pcs[ 6 ] = RtemsTimerReqFireWhen_Pre_State_Inactive;
+                ctx->Map.pcs[ 6 ] < RtemsTimerReqFireWhen_Pre_State_NA;
+                ++ctx->Map.pcs[ 6 ]
+              ) {
+                ctx->Map.entry = RtemsTimerReqFireWhen_PopEntry( ctx );
+
+                if ( ctx->Map.entry.Skip ) {
+                  continue;
+                }
+
+                RtemsTimerReqFireWhen_Prepare( ctx );
+                RtemsTimerReqFireWhen_TestVariant( ctx );
+                RtemsTimerReqFireWhen_Cleanup( ctx );
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-ident.c b/testsuites/validation/tc-timer-ident.c
new file mode 100644
index 0000000000..5f121fc55b
--- /dev/null
+++ b/testsuites/validation/tc-timer-ident.c
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerValIdent
+ */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tr-object-ident-local.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerValIdent spec:/rtems/timer/val/ident
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @brief Test the rtems_timer_ident() directive.
+ *
+ * This test case performs the following actions:
+ *
+ * - Run the generic object identification tests for Classic API timer class
+ *   objects defined by /rtems/req/ident-local.
+ *
+ * @{
+ */
+
+static rtems_status_code ClassicTimerIdentAction(
+  rtems_name name,
+  rtems_id  *id
+)
+{
+  return rtems_timer_ident( name, id );
+}
+
+/**
+ * @brief Run the generic object identification tests for Classic API timer
+ *   class objects defined by /rtems/req/ident-local.
+ */
+static void RtemsTimerValIdent_Action_0( void )
+{
+  rtems_status_code sc;
+  rtems_id          id_local_object;
+
+  sc = rtems_timer_create(
+    ClassicObjectLocalIdentName,
+    &id_local_object
+  );
+  T_assert_rsc_success( sc );
+
+  RtemsReqIdentLocal_Run(
+    id_local_object,
+    ClassicTimerIdentAction
+  );
+
+  sc = rtems_timer_delete( id_local_object );
+  T_rsc_success( sc );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerValIdent( void )
+ */
+T_TEST_CASE( RtemsTimerValIdent )
+{
+  RtemsTimerValIdent_Action_0();
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-initiate-server.c b/testsuites/validation/tc-timer-initiate-server.c
new file mode 100644
index 0000000000..89bb445a6f
--- /dev/null
+++ b/testsuites/validation/tc-timer-initiate-server.c
@@ -0,0 +1,817 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqInitiateServer
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <rtems/rtems/timerimpl.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqInitiateServer \
+ *   spec:/rtems/timer/req/initiate-server
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Pre_Priority_Valid,
+  RtemsTimerReqInitiateServer_Pre_Priority_Default,
+  RtemsTimerReqInitiateServer_Pre_Priority_Invalid,
+  RtemsTimerReqInitiateServer_Pre_Priority_NA
+} RtemsTimerReqInitiateServer_Pre_Priority;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Pre_Stack_Allocatable,
+  RtemsTimerReqInitiateServer_Pre_Stack_TooLarge,
+  RtemsTimerReqInitiateServer_Pre_Stack_NA
+} RtemsTimerReqInitiateServer_Pre_Stack;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Pre_Started_Yes,
+  RtemsTimerReqInitiateServer_Pre_Started_No,
+  RtemsTimerReqInitiateServer_Pre_Started_NA
+} RtemsTimerReqInitiateServer_Pre_Started;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Pre_TaskObj_Available,
+  RtemsTimerReqInitiateServer_Pre_TaskObj_Unavailable,
+  RtemsTimerReqInitiateServer_Pre_TaskObj_NA
+} RtemsTimerReqInitiateServer_Pre_TaskObj;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Post_Status_Ok,
+  RtemsTimerReqInitiateServer_Post_Status_IncStat,
+  RtemsTimerReqInitiateServer_Post_Status_InvPrio,
+  RtemsTimerReqInitiateServer_Post_Status_TooMany,
+  RtemsTimerReqInitiateServer_Post_Status_Unsat,
+  RtemsTimerReqInitiateServer_Post_Status_NA
+} RtemsTimerReqInitiateServer_Post_Status;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Post_Started_Yes,
+  RtemsTimerReqInitiateServer_Post_Started_No,
+  RtemsTimerReqInitiateServer_Post_Started_NA
+} RtemsTimerReqInitiateServer_Post_Started;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Post_TaskPrio_Set,
+  RtemsTimerReqInitiateServer_Post_TaskPrio_Nop,
+  RtemsTimerReqInitiateServer_Post_TaskPrio_NA
+} RtemsTimerReqInitiateServer_Post_TaskPrio;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Post_TaskStack_Set,
+  RtemsTimerReqInitiateServer_Post_TaskStack_Nop,
+  RtemsTimerReqInitiateServer_Post_TaskStack_NA
+} RtemsTimerReqInitiateServer_Post_TaskStack;
+
+typedef enum {
+  RtemsTimerReqInitiateServer_Post_TaskAttr_Set,
+  RtemsTimerReqInitiateServer_Post_TaskAttr_Nop,
+  RtemsTimerReqInitiateServer_Post_TaskAttr_NA
+} RtemsTimerReqInitiateServer_Post_TaskAttr;
+
+typedef struct {
+  uint16_t Skip : 1;
+  uint16_t Pre_Priority_NA : 1;
+  uint16_t Pre_Stack_NA : 1;
+  uint16_t Pre_Started_NA : 1;
+  uint16_t Pre_TaskObj_NA : 1;
+  uint16_t Post_Status : 3;
+  uint16_t Post_Started : 2;
+  uint16_t Post_TaskPrio : 2;
+  uint16_t Post_TaskStack : 2;
+  uint16_t Post_TaskAttr : 2;
+} RtemsTimerReqInitiateServer_Entry;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/initiate-server test case.
+ */
+typedef struct {
+  /**
+   * @brief If the Timer Server task exists before the action, its priority
+   *   before the action.
+   */
+  rtems_task_priority before_priority;
+
+  /**
+   * @brief If the Timer Server task exists before the action, its stack size
+   *   before the action.
+   */
+  size_t before_stack_size;
+
+  /**
+   * @brief If the Timer Server task exists before the action, whether the
+   *   floating point attribute is set before the action.
+   */
+  bool before_has_floating_point;
+
+  /**
+   * @brief The ``priority`` parameter for the action.
+   */
+  rtems_task_priority priority;
+
+  /**
+   * @brief The ``stack_size`` parameter for the action.
+   */
+  size_t stack_size;
+
+  /**
+   * @brief The status value returned by the action
+   *   rtems_timer_initiate_server().
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member is used by the T_seize_objects() and
+   *   T_surrender_objects() support functions.
+   */
+  void *task_objects;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 4 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqInitiateServer_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqInitiateServer_Context;
+
+static RtemsTimerReqInitiateServer_Context
+  RtemsTimerReqInitiateServer_Instance;
+
+static const char * const RtemsTimerReqInitiateServer_PreDesc_Priority[] = {
+  "Valid",
+  "Default",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqInitiateServer_PreDesc_Stack[] = {
+  "Allocatable",
+  "TooLarge",
+  "NA"
+};
+
+static const char * const RtemsTimerReqInitiateServer_PreDesc_Started[] = {
+  "Yes",
+  "No",
+  "NA"
+};
+
+static const char * const RtemsTimerReqInitiateServer_PreDesc_TaskObj[] = {
+  "Available",
+  "Unavailable",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqInitiateServer_PreDesc[] = {
+  RtemsTimerReqInitiateServer_PreDesc_Priority,
+  RtemsTimerReqInitiateServer_PreDesc_Stack,
+  RtemsTimerReqInitiateServer_PreDesc_Started,
+  RtemsTimerReqInitiateServer_PreDesc_TaskObj,
+  NULL
+};
+
+static bool ExistTimerServer( void )
+{
+  return GetTimerServerTaskId() != RTEMS_INVALID_ID;
+}
+
+static rtems_task_priority GetTimerServerPriority( void )
+{
+  return GetPriority( GetTimerServerTaskId() );
+}
+
+static size_t GetTimerServerStackSize( void )
+{
+  rtems_tcb *tcb;
+  rtems_id server_task_id;
+  server_task_id = GetTimerServerTaskId();
+  T_ne_u32( server_task_id, RTEMS_INVALID_ID );
+  tcb = GetThread( server_task_id );
+  T_not_null( tcb );
+  return tcb->Start.Initial_stack.size;
+}
+
+static bool HasTimerServerFloatingPoint( void )
+{
+  rtems_tcb *tcb;
+  rtems_id server_task_id;
+  server_task_id = GetTimerServerTaskId();
+  T_ne_u32( server_task_id, RTEMS_INVALID_ID );
+  tcb = GetThread( server_task_id );
+  T_not_null( tcb );
+  return tcb->is_fp;
+}
+
+static rtems_status_code AllocateTaskObject( void *arg, rtems_id *task_id )
+{
+  (void) arg;
+
+  return rtems_task_create(
+    rtems_build_name( 'T', 'A', ' ', 'N' ),
+    PRIO_LOW,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_MODES,
+    RTEMS_DEFAULT_ATTRIBUTES,
+    task_id
+  );
+}
+
+static void RtemsTimerReqInitiateServer_Pre_Priority_Prepare(
+  RtemsTimerReqInitiateServer_Context     *ctx,
+  RtemsTimerReqInitiateServer_Pre_Priority state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Pre_Priority_Valid: {
+      /*
+       * While the ``priority`` parameter is valid.
+       */
+      ctx->priority = 13;
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Priority_Default: {
+      /*
+       * While the ``priority`` parameter is equal to
+       * RTEMS_TIMER_SERVER_DEFAULT_PRIORITY.
+       */
+      ctx->priority = RTEMS_TIMER_SERVER_DEFAULT_PRIORITY;
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Priority_Invalid: {
+      /*
+       * While the ``priority`` parameter is invalid.
+       */
+      ctx->priority = PRIO_INVALID;
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Priority_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Pre_Stack_Prepare(
+  RtemsTimerReqInitiateServer_Context  *ctx,
+  RtemsTimerReqInitiateServer_Pre_Stack state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Pre_Stack_Allocatable: {
+      /*
+       * While the ``stack_size`` parameter specifies a task stack size which
+       * is allocatable by the system.
+       */
+      ctx->stack_size = RTEMS_MINIMUM_STACK_SIZE;
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Stack_TooLarge: {
+      /*
+       * While the ``stack_size`` parameter specifies a task stack size which
+       * is not allocatable by the system.
+       */
+      ctx->stack_size = SIZE_MAX;
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Stack_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Pre_Started_Prepare(
+  RtemsTimerReqInitiateServer_Context    *ctx,
+  RtemsTimerReqInitiateServer_Pre_Started state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Pre_Started_Yes: {
+      /*
+       * While the Timer Server task is started.
+       */
+      rtems_status_code status;
+
+      if ( !ExistTimerServer() ) {
+        status = rtems_timer_initiate_server(
+          RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+          RTEMS_MINIMUM_STACK_SIZE,
+          RTEMS_DEFAULT_ATTRIBUTES
+        );
+        T_rsc_success( status );
+      }
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Started_No: {
+      /*
+       * While the Timer Server task is not started.
+       */
+      DeleteTimerServer();
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_Started_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Pre_TaskObj_Prepare(
+  RtemsTimerReqInitiateServer_Context    *ctx,
+  RtemsTimerReqInitiateServer_Pre_TaskObj state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Pre_TaskObj_Available: {
+      /*
+       * While the system has at least one inactive task object available.
+       */
+      /* The test clean up ensures that all tasks objects are free. */
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_TaskObj_Unavailable: {
+      /*
+       * While the system has no inactive task object available.
+       */
+      ctx->task_objects = T_seize_objects(
+        AllocateTaskObject,
+        NULL
+      );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Pre_TaskObj_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Post_Status_Check(
+  RtemsTimerReqInitiateServer_Context    *ctx,
+  RtemsTimerReqInitiateServer_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_initiate_server() shall be
+       * RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Status_IncStat: {
+      /*
+       * The return status of rtems_timer_initiate_server() shall be
+       * RTEMS_INCORRECT_STATE
+       */
+      T_rsc( ctx->status, RTEMS_INCORRECT_STATE );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Status_InvPrio: {
+      /*
+       * The return status of rtems_timer_initiate_server() shall be
+       * RTEMS_INVALID_PRIORITY.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_PRIORITY );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Status_TooMany: {
+      /*
+       * The return status of rtems_timer_initiate_server() shall be
+       * RTEMS_TOO_MANY.
+       */
+      T_rsc( ctx->status, RTEMS_TOO_MANY );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Status_Unsat: {
+      /*
+       * The return status of rtems_timer_initiate_server() shall be
+       * RTEMS_UNSATISFIED.
+       */
+      T_rsc( ctx->status, RTEMS_UNSATISFIED  );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Post_Started_Check(
+  RtemsTimerReqInitiateServer_Context     *ctx,
+  RtemsTimerReqInitiateServer_Post_Started state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Post_Started_Yes: {
+      /*
+       * The Timer Server task shall be started after the
+       * rtems_timer_initiate_server() call.
+       */
+      T_true( ExistTimerServer() );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Started_No: {
+      /*
+       * The Timer Server task shall not be started after the
+       * rtems_timer_initiate_server() call.
+       */
+      T_false( ExistTimerServer() );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_Started_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Post_TaskPrio_Check(
+  RtemsTimerReqInitiateServer_Context      *ctx,
+  RtemsTimerReqInitiateServer_Post_TaskPrio state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Post_TaskPrio_Set: {
+      /*
+       * The priority of the Timer Server task shall be equal to the priority
+       * specified by the ``priority`` parameter in the
+       * rtems_timer_initiate_server() call.
+       */
+      if ( ctx->priority == RTEMS_TIMER_SERVER_DEFAULT_PRIORITY ) {
+        T_eq_u32( GetTimerServerPriority(), 0 );
+      } else {
+        T_eq_u32( GetTimerServerPriority(), ctx->priority );
+      }
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_TaskPrio_Nop: {
+      /*
+       * The priority of the Timer Server task shall not be modified by the
+       * rtems_timer_initiate_server() call.
+       */
+      T_eq_u32( GetTimerServerPriority(), ctx->before_priority );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_TaskPrio_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Post_TaskStack_Check(
+  RtemsTimerReqInitiateServer_Context       *ctx,
+  RtemsTimerReqInitiateServer_Post_TaskStack state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Post_TaskStack_Set: {
+      /*
+       * The stack size of the Timer Server task shall be greater than or equal
+       * to the stack size specified by the ``stack_size`` parameter in the
+       * rtems_timer_initiate_server() call.
+       */
+      T_ge_sz( GetTimerServerStackSize(), ctx->stack_size );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_TaskStack_Nop: {
+      /*
+       * The stack size of the Timer Server task shall not be modified by the
+       * rtems_timer_initiate_server() call.
+       */
+      T_ge_sz( GetTimerServerStackSize(), ctx->before_stack_size );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_TaskStack_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Post_TaskAttr_Check(
+  RtemsTimerReqInitiateServer_Context      *ctx,
+  RtemsTimerReqInitiateServer_Post_TaskAttr state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqInitiateServer_Post_TaskAttr_Set: {
+      /*
+       * The task attributes of the Timer Server task shall be specified by the
+       * ``attribute_set`` parameter in the rtems_timer_initiate_server() call.
+       */
+      T_true( HasTimerServerFloatingPoint() );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_TaskAttr_Nop: {
+      /*
+       * The task attributes of the Timer Server task shall not be modified by
+       * the rtems_timer_initiate_server() call.
+       */
+      T_true( HasTimerServerFloatingPoint() == ctx->before_has_floating_point );
+      break;
+    }
+
+    case RtemsTimerReqInitiateServer_Post_TaskAttr_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqInitiateServer_Setup(
+  RtemsTimerReqInitiateServer_Context *ctx
+)
+{
+  ctx->task_objects = NULL;
+}
+
+static void RtemsTimerReqInitiateServer_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqInitiateServer_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqInitiateServer_Setup( ctx );
+}
+
+/**
+ * @brief Make sure the time server in not running after this test.
+ */
+static void RtemsTimerReqInitiateServer_Teardown(
+  RtemsTimerReqInitiateServer_Context *ctx
+)
+{
+  DeleteTimerServer();
+}
+
+static void RtemsTimerReqInitiateServer_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqInitiateServer_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqInitiateServer_Teardown( ctx );
+}
+
+static void RtemsTimerReqInitiateServer_Action(
+  RtemsTimerReqInitiateServer_Context *ctx
+)
+{
+  if ( ExistTimerServer() ) {
+    ctx->before_priority = GetTimerServerPriority();
+    ctx->before_stack_size = GetTimerServerStackSize();
+    ctx->before_has_floating_point = HasTimerServerFloatingPoint();
+  }
+
+  ctx->status = rtems_timer_initiate_server(
+    ctx->priority,
+    ctx->stack_size,
+    RTEMS_FLOATING_POINT
+  );
+}
+
+static void RtemsTimerReqInitiateServer_Cleanup(
+  RtemsTimerReqInitiateServer_Context *ctx
+)
+{
+  T_surrender_objects( &ctx->task_objects, rtems_task_delete );
+}
+
+static const RtemsTimerReqInitiateServer_Entry
+RtemsTimerReqInitiateServer_Entries[] = {
+  { 0, 0, 0, 0, 0, RtemsTimerReqInitiateServer_Post_Status_IncStat,
+    RtemsTimerReqInitiateServer_Post_Started_Yes,
+    RtemsTimerReqInitiateServer_Post_TaskPrio_Nop,
+    RtemsTimerReqInitiateServer_Post_TaskStack_Nop,
+    RtemsTimerReqInitiateServer_Post_TaskAttr_Nop },
+  { 0, 0, 0, 0, 0, RtemsTimerReqInitiateServer_Post_Status_TooMany,
+    RtemsTimerReqInitiateServer_Post_Started_No,
+    RtemsTimerReqInitiateServer_Post_TaskPrio_NA,
+    RtemsTimerReqInitiateServer_Post_TaskStack_NA,
+    RtemsTimerReqInitiateServer_Post_TaskAttr_NA },
+  { 0, 0, 0, 0, 0, RtemsTimerReqInitiateServer_Post_Status_InvPrio,
+    RtemsTimerReqInitiateServer_Post_Started_No,
+    RtemsTimerReqInitiateServer_Post_TaskPrio_NA,
+    RtemsTimerReqInitiateServer_Post_TaskStack_NA,
+    RtemsTimerReqInitiateServer_Post_TaskAttr_NA },
+  { 0, 0, 0, 0, 0, RtemsTimerReqInitiateServer_Post_Status_Ok,
+    RtemsTimerReqInitiateServer_Post_Started_Yes,
+    RtemsTimerReqInitiateServer_Post_TaskPrio_Set,
+    RtemsTimerReqInitiateServer_Post_TaskStack_Set,
+    RtemsTimerReqInitiateServer_Post_TaskAttr_Set },
+  { 0, 0, 0, 0, 0, RtemsTimerReqInitiateServer_Post_Status_Unsat,
+    RtemsTimerReqInitiateServer_Post_Started_No,
+    RtemsTimerReqInitiateServer_Post_TaskPrio_NA,
+    RtemsTimerReqInitiateServer_Post_TaskStack_NA,
+    RtemsTimerReqInitiateServer_Post_TaskAttr_NA }
+};
+
+static const uint8_t
+RtemsTimerReqInitiateServer_Map[] = {
+  0, 0, 3, 1, 0, 0, 4, 1, 0, 0, 3, 1, 0, 0, 4, 1, 0, 0, 2, 2, 0, 0, 2, 2
+};
+
+static size_t RtemsTimerReqInitiateServer_Scope(
+  void  *arg,
+  char  *buf,
+  size_t n
+)
+{
+  RtemsTimerReqInitiateServer_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope(
+      RtemsTimerReqInitiateServer_PreDesc,
+      buf,
+      n,
+      ctx->Map.pcs
+    );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqInitiateServer_Fixture = {
+  .setup = RtemsTimerReqInitiateServer_Setup_Wrap,
+  .stop = NULL,
+  .teardown = RtemsTimerReqInitiateServer_Teardown_Wrap,
+  .scope = RtemsTimerReqInitiateServer_Scope,
+  .initial_context = &RtemsTimerReqInitiateServer_Instance
+};
+
+static inline RtemsTimerReqInitiateServer_Entry
+RtemsTimerReqInitiateServer_PopEntry(
+  RtemsTimerReqInitiateServer_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqInitiateServer_Entries[
+    RtemsTimerReqInitiateServer_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqInitiateServer_TestVariant(
+  RtemsTimerReqInitiateServer_Context *ctx
+)
+{
+  RtemsTimerReqInitiateServer_Pre_Priority_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqInitiateServer_Pre_Stack_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqInitiateServer_Pre_Started_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqInitiateServer_Pre_TaskObj_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqInitiateServer_Action( ctx );
+  RtemsTimerReqInitiateServer_Post_Status_Check(
+    ctx,
+    ctx->Map.entry.Post_Status
+  );
+  RtemsTimerReqInitiateServer_Post_Started_Check(
+    ctx,
+    ctx->Map.entry.Post_Started
+  );
+  RtemsTimerReqInitiateServer_Post_TaskPrio_Check(
+    ctx,
+    ctx->Map.entry.Post_TaskPrio
+  );
+  RtemsTimerReqInitiateServer_Post_TaskStack_Check(
+    ctx,
+    ctx->Map.entry.Post_TaskStack
+  );
+  RtemsTimerReqInitiateServer_Post_TaskAttr_Check(
+    ctx,
+    ctx->Map.entry.Post_TaskAttr
+  );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqInitiateServer( void )
+ */
+T_TEST_CASE_FIXTURE(
+  RtemsTimerReqInitiateServer,
+  &RtemsTimerReqInitiateServer_Fixture
+)
+{
+  RtemsTimerReqInitiateServer_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqInitiateServer_Pre_Priority_Valid;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqInitiateServer_Pre_Priority_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqInitiateServer_Pre_Stack_Allocatable;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqInitiateServer_Pre_Stack_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqInitiateServer_Pre_Started_Yes;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqInitiateServer_Pre_Started_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqInitiateServer_Pre_TaskObj_Available;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqInitiateServer_Pre_TaskObj_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          ctx->Map.entry = RtemsTimerReqInitiateServer_PopEntry( ctx );
+          RtemsTimerReqInitiateServer_TestVariant( ctx );
+          RtemsTimerReqInitiateServer_Cleanup( ctx );
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-reset.c b/testsuites/validation/tc-timer-reset.c
new file mode 100644
index 0000000000..2b87717b43
--- /dev/null
+++ b/testsuites/validation/tc-timer-reset.c
@@ -0,0 +1,1058 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqReset
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqReset spec:/rtems/timer/req/reset
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqReset_Pre_Id_Valid,
+  RtemsTimerReqReset_Pre_Id_Invalid,
+  RtemsTimerReqReset_Pre_Id_NA
+} RtemsTimerReqReset_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqReset_Pre_Context_None,
+  RtemsTimerReqReset_Pre_Context_Interrupt,
+  RtemsTimerReqReset_Pre_Context_Server,
+  RtemsTimerReqReset_Pre_Context_NA
+} RtemsTimerReqReset_Pre_Context;
+
+typedef enum {
+  RtemsTimerReqReset_Pre_Clock_None,
+  RtemsTimerReqReset_Pre_Clock_Ticks,
+  RtemsTimerReqReset_Pre_Clock_Realtime,
+  RtemsTimerReqReset_Pre_Clock_NA
+} RtemsTimerReqReset_Pre_Clock;
+
+typedef enum {
+  RtemsTimerReqReset_Pre_State_Inactive,
+  RtemsTimerReqReset_Pre_State_Scheduled,
+  RtemsTimerReqReset_Pre_State_Pending,
+  RtemsTimerReqReset_Pre_State_NA
+} RtemsTimerReqReset_Pre_State;
+
+typedef enum {
+  RtemsTimerReqReset_Post_Status_Ok,
+  RtemsTimerReqReset_Post_Status_InvId,
+  RtemsTimerReqReset_Post_Status_NotDef,
+  RtemsTimerReqReset_Post_Status_NA
+} RtemsTimerReqReset_Post_Status;
+
+typedef enum {
+  RtemsTimerReqReset_Post_Context_None,
+  RtemsTimerReqReset_Post_Context_Interrupt,
+  RtemsTimerReqReset_Post_Context_Server,
+  RtemsTimerReqReset_Post_Context_Nop,
+  RtemsTimerReqReset_Post_Context_NA
+} RtemsTimerReqReset_Post_Context;
+
+typedef enum {
+  RtemsTimerReqReset_Post_Clock_None,
+  RtemsTimerReqReset_Post_Clock_Ticks,
+  RtemsTimerReqReset_Post_Clock_Realtime,
+  RtemsTimerReqReset_Post_Clock_Nop,
+  RtemsTimerReqReset_Post_Clock_NA
+} RtemsTimerReqReset_Post_Clock;
+
+typedef enum {
+  RtemsTimerReqReset_Post_State_Scheduled,
+  RtemsTimerReqReset_Post_State_Nop,
+  RtemsTimerReqReset_Post_State_NA
+} RtemsTimerReqReset_Post_State;
+
+typedef enum {
+  RtemsTimerReqReset_Post_Interval_Last,
+  RtemsTimerReqReset_Post_Interval_Nop,
+  RtemsTimerReqReset_Post_Interval_NA
+} RtemsTimerReqReset_Post_Interval;
+
+typedef enum {
+  RtemsTimerReqReset_Post_Routine_Last,
+  RtemsTimerReqReset_Post_Routine_Nop,
+  RtemsTimerReqReset_Post_Routine_NA
+} RtemsTimerReqReset_Post_Routine;
+
+typedef enum {
+  RtemsTimerReqReset_Post_UserData_Last,
+  RtemsTimerReqReset_Post_UserData_Nop,
+  RtemsTimerReqReset_Post_UserData_NA
+} RtemsTimerReqReset_Post_UserData;
+
+typedef struct {
+  uint32_t Skip : 1;
+  uint32_t Pre_Id_NA : 1;
+  uint32_t Pre_Context_NA : 1;
+  uint32_t Pre_Clock_NA : 1;
+  uint32_t Pre_State_NA : 1;
+  uint32_t Post_Status : 2;
+  uint32_t Post_Context : 3;
+  uint32_t Post_Clock : 3;
+  uint32_t Post_State : 2;
+  uint32_t Post_Interval : 2;
+  uint32_t Post_Routine : 2;
+  uint32_t Post_UserData : 2;
+} RtemsTimerReqReset_Entry;
+
+typedef enum {
+  PRE_NONE      = 0,
+  PRE_INTERRUPT = 1,
+  PRE_SERVER    = 2
+} PreConditionContext;
+
+typedef enum {
+  SCHEDULE_NONE  = 0,
+  SCHEDULE_SOON  = 1,
+  SCHEDULE_LATER = 2,
+  SCHEDULE_MAX   = 5
+} Scheduling_Ticks;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/reset test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains a valid id of a timer.
+   */
+  rtems_id timer_id;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id id_param;
+
+  /**
+   * @brief This member contains the returned status code of the action.
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member contains the user data for Timer Service Routine "A".
+   */
+  void *data_a;
+
+  /**
+   * @brief This member contains the user data for Timer Service Routine "B".
+   */
+  void *data_b;
+
+  /**
+   * @brief This member contains the counter for invocations of Timer Service
+   *   Routine "A".
+   */
+  int invocations_a;
+
+  /**
+   * @brief This member contains the counter for invocations of Timer Service
+   *   Routine "B".
+   */
+  int invocations_b;
+
+  /**
+   * @brief This member contains the number of ticks needed to fire the Timer
+   *   Service Routine.
+   */
+  Scheduling_Ticks ticks_till_fire;
+
+  /**
+   * @brief This member identifier the user data given to the Timer Service
+   *   Routine when called. It either the address of member data_a or data_b.
+   */
+  void **routine_user_data;
+
+  /**
+   * @brief This member contains a reference to the user data to be used in the
+   *   next call to the Timer Service Routine.
+   */
+  void **scheduled_user_data;;
+
+  /**
+   * @brief This member contains 1 if the Timer Service Routine "A" has been
+   *   scheduled otherwise 0.
+   */
+  int scheduled_invocations_a;
+
+  /**
+   * @brief This member contains 1 if the Timer Service Routine "B" has been
+   *   scheduled otherwise 0.
+   */
+  int scheduled_invocations_b;
+
+  /**
+   * @brief This member specifies the number of ticks till the scheduled Timer
+   *   Service Routine should fire.
+   */
+  Scheduling_Ticks scheduled_ticks_till_fire;
+
+  /**
+   * @brief This member specifies which pre-condition context (none, interrupt
+   *   context, server context) must be created before the rtems_timer_reset()
+   *   action gets executed.
+   */
+  PreConditionContext pre_cond_contex;
+
+  /**
+   * @brief This member stores internal clock and context settings of the timer
+   *   before the execution of the test action.
+   */
+  Timer_Classes pre_class;
+
+  /**
+   * @brief This member stores the state of the timer before the execution of
+   *   the test action.
+   */
+  Timer_States pre_state;
+
+  /**
+   * @brief This member stores the state of the timer after the execution of
+   *   the test action.
+   */
+  Timer_States post_state;
+
+  /**
+   * @brief This member stores the scheduling data of the timer before the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data pre_scheduling_data;
+
+  /**
+   * @brief This member stores the scheduling data of the timer after the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data post_scheduling_data;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 4 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqReset_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqReset_Context;
+
+static RtemsTimerReqReset_Context
+  RtemsTimerReqReset_Instance;
+
+static const char * const RtemsTimerReqReset_PreDesc_Id[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqReset_PreDesc_Context[] = {
+  "None",
+  "Interrupt",
+  "Server",
+  "NA"
+};
+
+static const char * const RtemsTimerReqReset_PreDesc_Clock[] = {
+  "None",
+  "Ticks",
+  "Realtime",
+  "NA"
+};
+
+static const char * const RtemsTimerReqReset_PreDesc_State[] = {
+  "Inactive",
+  "Scheduled",
+  "Pending",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqReset_PreDesc[] = {
+  RtemsTimerReqReset_PreDesc_Id,
+  RtemsTimerReqReset_PreDesc_Context,
+  RtemsTimerReqReset_PreDesc_Clock,
+  RtemsTimerReqReset_PreDesc_State,
+  NULL
+};
+
+static const rtems_time_of_day tod_now      = { 2000, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_schedule = { 2000, 1, 1, 1, 0, 0, 0 };
+static const rtems_time_of_day tod_fire     = { 2000, 1, 2, 0, 0, 0, 0 };
+
+static Scheduling_Ticks TriggerTimer( const RtemsTimerReqReset_Context *ctx )
+{
+  int ticks_fired = SCHEDULE_NONE;
+  int invocations_old = ctx->invocations_a + ctx->invocations_b;
+
+  /* Fire the timer service routine for ticks and realtime clock */
+  int i;
+  for ( i = 1; i <= SCHEDULE_MAX; ++i ) {
+    ClockTick();
+    if ( ctx->invocations_a + ctx->invocations_b > invocations_old ) {
+      ticks_fired = i;
+      break;
+    }
+  }
+
+  T_rsc_success( rtems_clock_set( &tod_fire ) );
+
+  return ticks_fired;
+}
+
+static void TimerServiceRoutineA(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqReset_Context *ctx =
+    *(RtemsTimerReqReset_Context **) user_data;
+  ++( ctx->invocations_a );
+  ctx->routine_user_data = user_data;
+}
+
+static void TimerServiceRoutineB(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqReset_Context *ctx =
+    *(RtemsTimerReqReset_Context **) user_data;
+  ++( ctx->invocations_b );
+  ctx->routine_user_data = user_data;
+}
+
+static void RtemsTimerReqReset_Pre_Id_Prepare(
+  RtemsTimerReqReset_Context *ctx,
+  RtemsTimerReqReset_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter is valid.
+       */
+      ctx->id_param = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Id_Invalid: {
+      /*
+       * While the ``id`` parameter is invalid.
+       */
+      ctx->id_param = RTEMS_ID_NONE;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Pre_Context_Prepare(
+  RtemsTimerReqReset_Context    *ctx,
+  RtemsTimerReqReset_Pre_Context state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Pre_Context_None: {
+      /*
+       * While the Timer Service Routine has never been scheduled since
+       * creation of the timer. See also none.
+       */
+      ctx->pre_cond_contex = PRE_NONE;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Context_Interrupt: {
+      /*
+       * While the timer is in interrupt context.
+       */
+      ctx->pre_cond_contex = PRE_INTERRUPT;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Context_Server: {
+      /*
+       * While the timer is in server context.
+       */
+      ctx->pre_cond_contex = PRE_SERVER;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Pre_Clock_Prepare(
+  RtemsTimerReqReset_Context  *ctx,
+  RtemsTimerReqReset_Pre_Clock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Pre_Clock_None: {
+      /*
+       * While the timer has never been scheduled since creation of the timer.
+       */
+      T_eq_int( ctx->pre_cond_contex, PRE_NONE );
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Clock_Ticks: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * ticks based clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        ctx->scheduled_ticks_till_fire = SCHEDULE_SOON;
+        ctx->scheduled_invocations_a = 1;
+        ctx->scheduled_user_data = &ctx->data_a;
+        status = rtems_timer_fire_after(
+          ctx->timer_id,
+          ctx->scheduled_ticks_till_fire,
+          TimerServiceRoutineA,
+          ctx->scheduled_user_data
+        );
+      } else {
+        ctx->scheduled_ticks_till_fire = SCHEDULE_LATER;
+        ctx->scheduled_invocations_b = 1;
+        ctx->scheduled_user_data = &ctx->data_b;
+         status = rtems_timer_server_fire_after(
+          ctx->timer_id,
+          ctx->scheduled_ticks_till_fire,
+          TimerServiceRoutineB,
+          ctx->scheduled_user_data
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Clock_Realtime: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * realtime clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutineA,
+          &ctx->data_a
+        );
+      } else {
+        status = rtems_timer_server_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutineB,
+          &ctx->data_b
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Pre_State_Prepare(
+  RtemsTimerReqReset_Context  *ctx,
+  RtemsTimerReqReset_Pre_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Pre_State_Inactive: {
+      /*
+       * While the timer is in inactive state.
+       */
+      TriggerTimer( ctx );
+      T_eq_int(
+        ctx->invocations_a + ctx->invocations_b,
+        ( ctx->pre_cond_contex == PRE_NONE ) ? 0 : 1
+      );
+      ctx->invocations_a = 0;
+      ctx->invocations_b = 0;
+      ctx->pre_state = TIMER_INACTIVE;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_State_Scheduled: {
+      /*
+       * While the timer is in scheduled state.
+       */
+      /* The timer was already scheduled in the "Clock" pre-conditions. */
+      ctx->pre_state = TIMER_SCHEDULED;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_State_Pending: {
+      /*
+       * While the timer is in pending state.
+       */
+      T_rsc_success( rtems_task_suspend( GetTimerServerTaskId() ) );
+      TriggerTimer( ctx );
+      T_eq_int( ctx->invocations_a + ctx->invocations_b, 0 );
+      ctx->pre_state = TIMER_PENDING;
+      break;
+    }
+
+    case RtemsTimerReqReset_Pre_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_Status_Check(
+  RtemsTimerReqReset_Context    *ctx,
+  RtemsTimerReqReset_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_reset() shall be RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_reset() shall be RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Status_NotDef: {
+      /*
+       * The return status of rtems_timer_reset() shall be RTEMS_NOT_DEFINED
+       */
+      T_rsc( ctx->status, RTEMS_NOT_DEFINED );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_Context_Check(
+  RtemsTimerReqReset_Context     *ctx,
+  RtemsTimerReqReset_Post_Context state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_Context_None: {
+      /*
+       * The timer shall have never been scheduled. See also none.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Context_Interrupt: {
+      /*
+       * The timer shall be in interrupt context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, 0 );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Context_Server: {
+      /*
+       * The timer shall be in server context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, TIMER_CLASS_BIT_ON_TASK );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Context_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past call to
+       * rtems_timer_reset() shall not be accessed by the rtems_timer_reset()
+       * call. See also Nop.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_Clock_Check(
+  RtemsTimerReqReset_Context   *ctx,
+  RtemsTimerReqReset_Post_Clock state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_Clock_None: {
+      /*
+       * The timer shall have never been scheduled.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Clock_Ticks: {
+      /*
+       * The timer shall use the ticks based clock.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_TIME_OF_DAY, 0 );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Clock_Realtime: {
+      /*
+       * The timer shall use the realtime clock.
+       */
+      T_eq_int(
+        class & TIMER_CLASS_BIT_TIME_OF_DAY,
+        TIMER_CLASS_BIT_TIME_OF_DAY
+      );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Clock_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past call to
+       * rtems_timer_reset() shall not be accessed by the rtems_timer_reset()
+       * call.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_State_Check(
+  RtemsTimerReqReset_Context   *ctx,
+  RtemsTimerReqReset_Post_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_State_Scheduled: {
+      /*
+       * The timer shall be in scheduled state.
+       */
+      ctx->ticks_till_fire = TriggerTimer( ctx );
+      T_eq_int( ctx->invocations_a + ctx->invocations_b, 1 );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_State_Nop: {
+      /*
+       * Objects referenced by the ``id`` parameter in past call to
+       * rtems_timer_reset() shall not be accessed by the rtems_timer_reset()
+       * call.
+       */
+      T_eq_int( ctx->post_state, ctx->pre_state );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_Interval_Check(
+  RtemsTimerReqReset_Context      *ctx,
+  RtemsTimerReqReset_Post_Interval state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_Interval_Last: {
+      /*
+       * The Timer Service Routine shall be invoked the same number of ticks
+       * (see tick), as defined by the last scheduled interval, after a point
+       * in time during the execution of the rtems_timer_reset() call.
+       */
+      T_eq_int( ctx->ticks_till_fire, ctx->scheduled_ticks_till_fire );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Interval_Nop: {
+      /*
+       * If and when the Timer Service Routine will be invoked shall not be
+       * changed by the past call to rtems_timer_reset().
+       */
+      /*
+       * Whether the timer is scheduled has already been tested by the
+       * "Nop" "State" post-condition above.
+       */
+      T_eq_u32(
+        ctx->post_scheduling_data.interval,
+        ctx->pre_scheduling_data.interval
+      );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Interval_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_Routine_Check(
+  RtemsTimerReqReset_Context     *ctx,
+  RtemsTimerReqReset_Post_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_Routine_Last: {
+      /*
+       * The function reference used to invoke the Timer Service Routine when
+       * the timer will fire shall be the same one as the last one scheduled.
+       */
+      T_eq_int( ctx->invocations_a, ctx->scheduled_invocations_a );
+      T_eq_int( ctx->invocations_b, ctx->scheduled_invocations_b );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Routine_Nop: {
+      /*
+       * The function reference used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to rtems_timer_reset().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.routine,
+        ctx->pre_scheduling_data.routine
+      );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Post_UserData_Check(
+  RtemsTimerReqReset_Context      *ctx,
+  RtemsTimerReqReset_Post_UserData state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqReset_Post_UserData_Last: {
+      /*
+       * The user data argument for invoking the Timer Service Routine when the
+       * timer will fire shall be the same as the last scheduled user data
+       * argument.
+       */
+      T_eq_ptr( ctx->routine_user_data, ctx->scheduled_user_data);
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_UserData_Nop: {
+      /*
+       * The user data argument used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to rtems_timer_reset().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.user_data,
+        ctx->pre_scheduling_data.user_data
+      );
+      break;
+    }
+
+    case RtemsTimerReqReset_Post_UserData_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqReset_Setup( RtemsTimerReqReset_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_initiate_server(
+    RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_ATTRIBUTES
+  );
+  T_rsc_success( status );
+}
+
+static void RtemsTimerReqReset_Setup_Wrap( void *arg )
+{
+  RtemsTimerReqReset_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqReset_Setup( ctx );
+}
+
+/**
+ * @brief Make sure the timer server is not running and the realtime clock is
+ *   not set after this test.
+ */
+static void RtemsTimerReqReset_Teardown( RtemsTimerReqReset_Context *ctx )
+{
+  DeleteTimerServer();
+  UnsetClock();
+}
+
+static void RtemsTimerReqReset_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqReset_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqReset_Teardown( ctx );
+}
+
+static void RtemsTimerReqReset_Prepare( RtemsTimerReqReset_Context *ctx )
+{
+  rtems_status_code status;
+  status = rtems_timer_create(
+    rtems_build_name( 'T', 'I', 'M', 'E' ),
+    &ctx->timer_id
+  );
+  T_rsc_success( status );
+
+  ctx->data_a                    = ctx;
+  ctx->data_b                    = ctx;
+  ctx->invocations_a             = 0;
+  ctx->invocations_b             = 0;
+  ctx->ticks_till_fire           = SCHEDULE_NONE;
+  ctx->routine_user_data         = NULL;
+  ctx->scheduled_invocations_a   = 0;
+  ctx->scheduled_invocations_b   = 0;
+  ctx->scheduled_ticks_till_fire = SCHEDULE_NONE;
+  T_rsc_success( rtems_clock_set( &tod_now ) );
+}
+
+static void RtemsTimerReqReset_Action( RtemsTimerReqReset_Context *ctx )
+{
+  GetTimerSchedulingData( ctx->timer_id, &ctx->pre_scheduling_data );
+  ctx->pre_class = GetTimerClass( ctx->timer_id );
+  ctx->status = rtems_timer_reset( ctx->id_param );
+  ctx->post_state = GetTimerState( ctx->timer_id );
+  GetTimerSchedulingData( ctx->timer_id, &ctx->post_scheduling_data );
+  /* Ignoring return status: the timer server task may be suspended or not. */
+  rtems_task_resume( GetTimerServerTaskId() );
+}
+
+static void RtemsTimerReqReset_Cleanup( RtemsTimerReqReset_Context *ctx )
+{
+  T_rsc_success( rtems_timer_delete( ctx->timer_id ) );
+}
+
+static const RtemsTimerReqReset_Entry
+RtemsTimerReqReset_Entries[] = {
+  { 1, 0, 0, 0, 0, RtemsTimerReqReset_Post_Status_NA,
+    RtemsTimerReqReset_Post_Context_NA, RtemsTimerReqReset_Post_Clock_NA,
+    RtemsTimerReqReset_Post_State_NA, RtemsTimerReqReset_Post_Interval_NA,
+    RtemsTimerReqReset_Post_Routine_NA, RtemsTimerReqReset_Post_UserData_NA },
+  { 0, 0, 0, 0, 0, RtemsTimerReqReset_Post_Status_InvId,
+    RtemsTimerReqReset_Post_Context_Nop, RtemsTimerReqReset_Post_Clock_Nop,
+    RtemsTimerReqReset_Post_State_Nop, RtemsTimerReqReset_Post_Interval_Nop,
+    RtemsTimerReqReset_Post_Routine_Nop, RtemsTimerReqReset_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, RtemsTimerReqReset_Post_Status_NotDef,
+    RtemsTimerReqReset_Post_Context_Nop, RtemsTimerReqReset_Post_Clock_Nop,
+    RtemsTimerReqReset_Post_State_Nop, RtemsTimerReqReset_Post_Interval_Nop,
+    RtemsTimerReqReset_Post_Routine_Nop, RtemsTimerReqReset_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, RtemsTimerReqReset_Post_Status_Ok,
+    RtemsTimerReqReset_Post_Context_Server,
+    RtemsTimerReqReset_Post_Clock_Ticks,
+    RtemsTimerReqReset_Post_State_Scheduled,
+    RtemsTimerReqReset_Post_Interval_Last,
+    RtemsTimerReqReset_Post_Routine_Last, RtemsTimerReqReset_Post_UserData_Last },
+  { 0, 0, 0, 0, 0, RtemsTimerReqReset_Post_Status_Ok,
+    RtemsTimerReqReset_Post_Context_Interrupt,
+    RtemsTimerReqReset_Post_Clock_Ticks,
+    RtemsTimerReqReset_Post_State_Scheduled,
+    RtemsTimerReqReset_Post_Interval_Last,
+    RtemsTimerReqReset_Post_Routine_Last, RtemsTimerReqReset_Post_UserData_Last }
+};
+
+static const uint8_t
+RtemsTimerReqReset_Map[] = {
+  2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 2, 2, 0, 0, 0, 0, 3, 3, 3, 2, 2,
+  2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1,
+  1, 1
+};
+
+static size_t RtemsTimerReqReset_Scope( void *arg, char *buf, size_t n )
+{
+  RtemsTimerReqReset_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope( RtemsTimerReqReset_PreDesc, buf, n, ctx->Map.pcs );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqReset_Fixture = {
+  .setup = RtemsTimerReqReset_Setup_Wrap,
+  .stop = NULL,
+  .teardown = RtemsTimerReqReset_Teardown_Wrap,
+  .scope = RtemsTimerReqReset_Scope,
+  .initial_context = &RtemsTimerReqReset_Instance
+};
+
+static inline RtemsTimerReqReset_Entry RtemsTimerReqReset_PopEntry(
+  RtemsTimerReqReset_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqReset_Entries[
+    RtemsTimerReqReset_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqReset_TestVariant( RtemsTimerReqReset_Context *ctx )
+{
+  RtemsTimerReqReset_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqReset_Pre_Context_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqReset_Pre_Clock_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqReset_Pre_State_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqReset_Action( ctx );
+  RtemsTimerReqReset_Post_Status_Check( ctx, ctx->Map.entry.Post_Status );
+  RtemsTimerReqReset_Post_Context_Check( ctx, ctx->Map.entry.Post_Context );
+  RtemsTimerReqReset_Post_Clock_Check( ctx, ctx->Map.entry.Post_Clock );
+  RtemsTimerReqReset_Post_State_Check( ctx, ctx->Map.entry.Post_State );
+  RtemsTimerReqReset_Post_Interval_Check( ctx, ctx->Map.entry.Post_Interval );
+  RtemsTimerReqReset_Post_Routine_Check( ctx, ctx->Map.entry.Post_Routine );
+  RtemsTimerReqReset_Post_UserData_Check( ctx, ctx->Map.entry.Post_UserData );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqReset( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerReqReset, &RtemsTimerReqReset_Fixture )
+{
+  RtemsTimerReqReset_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqReset_Pre_Id_Valid;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqReset_Pre_Id_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqReset_Pre_Context_None;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqReset_Pre_Context_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqReset_Pre_Clock_None;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqReset_Pre_Clock_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqReset_Pre_State_Inactive;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqReset_Pre_State_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          ctx->Map.entry = RtemsTimerReqReset_PopEntry( ctx );
+
+          if ( ctx->Map.entry.Skip ) {
+            continue;
+          }
+
+          RtemsTimerReqReset_Prepare( ctx );
+          RtemsTimerReqReset_TestVariant( ctx );
+          RtemsTimerReqReset_Cleanup( ctx );
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-server-fire-after.c b/testsuites/validation/tc-timer-server-fire-after.c
new file mode 100644
index 0000000000..50e639e7c1
--- /dev/null
+++ b/testsuites/validation/tc-timer-server-fire-after.c
@@ -0,0 +1,1301 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqServerFireAfter
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqServerFireAfter \
+ *   spec:/rtems/timer/req/server-fire-after
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_Server_Init,
+  RtemsTimerReqServerFireAfter_Pre_Server_NotInit,
+  RtemsTimerReqServerFireAfter_Pre_Server_NA
+} RtemsTimerReqServerFireAfter_Pre_Server;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_Ticks_Valid,
+  RtemsTimerReqServerFireAfter_Pre_Ticks_Is0,
+  RtemsTimerReqServerFireAfter_Pre_Ticks_NA
+} RtemsTimerReqServerFireAfter_Pre_Ticks;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_Routine_Valid,
+  RtemsTimerReqServerFireAfter_Pre_Routine_Null,
+  RtemsTimerReqServerFireAfter_Pre_Routine_NA
+} RtemsTimerReqServerFireAfter_Pre_Routine;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_Id_Valid,
+  RtemsTimerReqServerFireAfter_Pre_Id_Invalid,
+  RtemsTimerReqServerFireAfter_Pre_Id_NA
+} RtemsTimerReqServerFireAfter_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_Context_None,
+  RtemsTimerReqServerFireAfter_Pre_Context_Interrupt,
+  RtemsTimerReqServerFireAfter_Pre_Context_Server,
+  RtemsTimerReqServerFireAfter_Pre_Context_NA
+} RtemsTimerReqServerFireAfter_Pre_Context;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_Clock_None,
+  RtemsTimerReqServerFireAfter_Pre_Clock_Ticks,
+  RtemsTimerReqServerFireAfter_Pre_Clock_Realtime,
+  RtemsTimerReqServerFireAfter_Pre_Clock_NA
+} RtemsTimerReqServerFireAfter_Pre_Clock;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Pre_State_Inactive,
+  RtemsTimerReqServerFireAfter_Pre_State_Scheduled,
+  RtemsTimerReqServerFireAfter_Pre_State_Pending,
+  RtemsTimerReqServerFireAfter_Pre_State_NA
+} RtemsTimerReqServerFireAfter_Pre_State;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_Status_Ok,
+  RtemsTimerReqServerFireAfter_Post_Status_InvId,
+  RtemsTimerReqServerFireAfter_Post_Status_InvAddr,
+  RtemsTimerReqServerFireAfter_Post_Status_InvNum,
+  RtemsTimerReqServerFireAfter_Post_Status_IncStat,
+  RtemsTimerReqServerFireAfter_Post_Status_NA
+} RtemsTimerReqServerFireAfter_Post_Status;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_Context_None,
+  RtemsTimerReqServerFireAfter_Post_Context_Interrupt,
+  RtemsTimerReqServerFireAfter_Post_Context_Server,
+  RtemsTimerReqServerFireAfter_Post_Context_Nop,
+  RtemsTimerReqServerFireAfter_Post_Context_NA
+} RtemsTimerReqServerFireAfter_Post_Context;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_Clock_None,
+  RtemsTimerReqServerFireAfter_Post_Clock_Ticks,
+  RtemsTimerReqServerFireAfter_Post_Clock_Realtime,
+  RtemsTimerReqServerFireAfter_Post_Clock_Nop,
+  RtemsTimerReqServerFireAfter_Post_Clock_NA
+} RtemsTimerReqServerFireAfter_Post_Clock;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_State_Scheduled,
+  RtemsTimerReqServerFireAfter_Post_State_Nop,
+  RtemsTimerReqServerFireAfter_Post_State_NA
+} RtemsTimerReqServerFireAfter_Post_State;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_Interval_Param,
+  RtemsTimerReqServerFireAfter_Post_Interval_Nop,
+  RtemsTimerReqServerFireAfter_Post_Interval_NA
+} RtemsTimerReqServerFireAfter_Post_Interval;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_Routine_Param,
+  RtemsTimerReqServerFireAfter_Post_Routine_Nop,
+  RtemsTimerReqServerFireAfter_Post_Routine_NA
+} RtemsTimerReqServerFireAfter_Post_Routine;
+
+typedef enum {
+  RtemsTimerReqServerFireAfter_Post_UserData_Param,
+  RtemsTimerReqServerFireAfter_Post_UserData_Nop,
+  RtemsTimerReqServerFireAfter_Post_UserData_NA
+} RtemsTimerReqServerFireAfter_Post_UserData;
+
+typedef struct {
+  uint32_t Skip : 1;
+  uint32_t Pre_Server_NA : 1;
+  uint32_t Pre_Ticks_NA : 1;
+  uint32_t Pre_Routine_NA : 1;
+  uint32_t Pre_Id_NA : 1;
+  uint32_t Pre_Context_NA : 1;
+  uint32_t Pre_Clock_NA : 1;
+  uint32_t Pre_State_NA : 1;
+  uint32_t Post_Status : 3;
+  uint32_t Post_Context : 3;
+  uint32_t Post_Clock : 3;
+  uint32_t Post_State : 2;
+  uint32_t Post_Interval : 2;
+  uint32_t Post_Routine : 2;
+  uint32_t Post_UserData : 2;
+} RtemsTimerReqServerFireAfter_Entry;
+
+typedef enum {
+  PRE_NONE      = 0,
+  PRE_INTERRUPT = 1,
+  PRE_SERVER    = 2
+} PreConditionContext;
+
+typedef enum {
+  SCHEDULE_NONE       = 0,
+  SCHEDULE_VERY_SOON  = 1,
+  SCHEDULE_SOON       = 2,
+  SCHEDULE_LATER      = 3,
+  SCHEDULE_MAX        = 5
+} Scheduling_Ticks;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/server-fire-after test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains a valid id of a timer.
+   */
+  rtems_id timer_id;
+
+  /**
+   * @brief This member contains a valid id of a second timer.
+   *
+   * This timer is used reach branch coverage in an if-statement which only
+   * serves performance optimization.
+   */
+  rtems_id timer_cover_id;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id id_param;
+
+  /**
+   * @brief This member specifies the ``ticks`` parameter for the action.
+   */
+  rtems_interval ticks_param;
+
+  /**
+   * @brief This member specifies the ``routine`` parameter for the action.
+   */
+  rtems_timer_service_routine_entry routine_param;
+
+  /**
+   * @brief This member contains the returned status code of the action.
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member contains a counter for invocations of the Timer Service
+   *   Routine.
+   */
+  int invocations;
+
+  /**
+   * @brief Function TriggerTimer() is used to figure out how many ticks (see
+   *   tick) are needed till the Timer Service Routine gets executed. This
+   *   member contains the number of ticks needed to fire the Timer Service
+   *   Routine.
+   */
+  Scheduling_Ticks ticks_till_fire;
+
+  /**
+   * @brief This member contains the user data given to the Timer Service
+   *   Routine when called.
+   */
+  void *routine_user_data;
+
+  /**
+   * @brief This member specifies which pre-condition context (none, interrupt
+   *   context, server context) must be created before the
+   *   rtems_timer_server_fire_after() action gets executed.
+   */
+  PreConditionContext pre_cond_contex;
+
+  /**
+   * @brief This member stores internal clock and context settings of the timer
+   *   before the execution of the test action.
+   */
+  Timer_Classes pre_class;
+
+  /**
+   * @brief This member stores the state of the timer before the execution of
+   *   the test action.
+   */
+  Timer_States pre_state;
+
+  /**
+   * @brief This member stores the state of the timer after the execution of
+   *   the test action.
+   */
+  Timer_States post_state;
+
+  /**
+   * @brief This member stores the scheduling data of the timer before the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data pre_scheduling_data;
+
+  /**
+   * @brief This member stores the scheduling data of the timer after the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data post_scheduling_data;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 7 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqServerFireAfter_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqServerFireAfter_Context;
+
+static RtemsTimerReqServerFireAfter_Context
+  RtemsTimerReqServerFireAfter_Instance;
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_Server[] = {
+  "Init",
+  "NotInit",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_Ticks[] = {
+  "Valid",
+  "Is0",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_Routine[] = {
+  "Valid",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_Id[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_Context[] = {
+  "None",
+  "Interrupt",
+  "Server",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_Clock[] = {
+  "None",
+  "Ticks",
+  "Realtime",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireAfter_PreDesc_State[] = {
+  "Inactive",
+  "Scheduled",
+  "Pending",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqServerFireAfter_PreDesc[] = {
+  RtemsTimerReqServerFireAfter_PreDesc_Server,
+  RtemsTimerReqServerFireAfter_PreDesc_Ticks,
+  RtemsTimerReqServerFireAfter_PreDesc_Routine,
+  RtemsTimerReqServerFireAfter_PreDesc_Id,
+  RtemsTimerReqServerFireAfter_PreDesc_Context,
+  RtemsTimerReqServerFireAfter_PreDesc_Clock,
+  RtemsTimerReqServerFireAfter_PreDesc_State,
+  NULL
+};
+
+static const rtems_time_of_day tod_now      = { 2000, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_schedule = { 2000, 1, 1, 1, 0, 0, 0 };
+static const rtems_time_of_day tod_fire     = { 2000, 1, 2, 0, 0, 0, 0 };
+
+static Scheduling_Ticks TriggerTimer( const RtemsTimerReqServerFireAfter_Context *ctx )
+{
+  int ticks_fired = SCHEDULE_NONE;
+  int invocations_old = ctx->invocations;
+
+  /* Fire the timer service routine for ticks and realtime clock */
+  int i;
+  for ( i = 1; i <= SCHEDULE_MAX; ++i ) {
+    ClockTick();
+    if ( ctx->invocations > invocations_old ) {
+      ticks_fired = i;
+      break;
+    }
+  }
+
+  T_rsc_success( rtems_clock_set( &tod_fire ) );
+
+  return ticks_fired;
+}
+
+static void TimerServiceRoutine(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqServerFireAfter_Context *ctx = user_data;
+  ++( ctx->invocations );
+  ctx->routine_user_data = user_data;
+}
+
+/*
+ * This service routine is used reach branch coverage in an if-statement
+ * which only serves performance optimization.
+ */
+static void TimerServiceRoutineCover(
+  rtems_id timer_cover_id,
+  void *user_data
+)
+{
+  (void) timer_cover_id;
+  (void) user_data;
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_Server_Prepare(
+  RtemsTimerReqServerFireAfter_Context   *ctx,
+  RtemsTimerReqServerFireAfter_Pre_Server state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_Server_Init: {
+      /*
+       * While the Timer Server task has been successfully initialized by a
+       * call to rtems_timer_initiate_server().
+       */
+      rtems_status_code status;
+      status = rtems_timer_initiate_server(
+        RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+        RTEMS_MINIMUM_STACK_SIZE,
+        RTEMS_DEFAULT_ATTRIBUTES
+      );
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Server_NotInit: {
+      /*
+       * While the Timer Server task has not been initialized and does not
+       * exist.
+       */
+      DeleteTimerServer();
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Server_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_Ticks_Prepare(
+  RtemsTimerReqServerFireAfter_Context  *ctx,
+  RtemsTimerReqServerFireAfter_Pre_Ticks state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_Ticks_Valid: {
+      /*
+       * While the ``ticks`` parameter is a positive (greater 0) number.
+       */
+      ctx->ticks_param = SCHEDULE_LATER;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Ticks_Is0: {
+      /*
+       * While the ``ticks`` parameter is 0.
+       */
+      ctx->ticks_param = 0;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Ticks_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_Routine_Prepare(
+  RtemsTimerReqServerFireAfter_Context    *ctx,
+  RtemsTimerReqServerFireAfter_Pre_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_Routine_Valid: {
+      /*
+       * While the ``routine`` parameter references an object of type
+       * rtems_timer_service_routine_entry.
+       */
+      ctx->routine_param = TimerServiceRoutine;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Routine_Null: {
+      /*
+       * While the ``routine`` parameter is NULL..
+       */
+      ctx->routine_param = NULL;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_Id_Prepare(
+  RtemsTimerReqServerFireAfter_Context *ctx,
+  RtemsTimerReqServerFireAfter_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter is valid.
+       */
+      ctx->id_param = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Id_Invalid: {
+      /*
+       * While the ``id`` parameter is invalid.
+       */
+      ctx->id_param = RTEMS_ID_NONE;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_Context_Prepare(
+  RtemsTimerReqServerFireAfter_Context    *ctx,
+  RtemsTimerReqServerFireAfter_Pre_Context state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_Context_None: {
+      /*
+       * While the Timer Service Routine has never been scheduled since
+       * creation of the timer. See also none.
+       */
+      ctx->pre_cond_contex = PRE_NONE;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Context_Interrupt: {
+      /*
+       * While the timer is in interrupt context.
+       */
+      ctx->pre_cond_contex = PRE_INTERRUPT;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Context_Server: {
+      /*
+       * While the timer is in server context.
+       */
+      ctx->pre_cond_contex = PRE_SERVER;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_Clock_Prepare(
+  RtemsTimerReqServerFireAfter_Context  *ctx,
+  RtemsTimerReqServerFireAfter_Pre_Clock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_Clock_None: {
+      /*
+       * While the timer has never been scheduled since creation of the timer.
+       */
+      T_eq_int( ctx->pre_cond_contex, PRE_NONE );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Clock_Ticks: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * ticks based clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Clock_Realtime: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * realtime clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Pre_State_Prepare(
+  RtemsTimerReqServerFireAfter_Context  *ctx,
+  RtemsTimerReqServerFireAfter_Pre_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Pre_State_Inactive: {
+      /*
+       * While the timer is in inactive state.
+       */
+      TriggerTimer( ctx );
+      T_eq_int(
+        ctx->invocations,
+        ( ctx->pre_cond_contex == PRE_NONE ) ? 0 : 1
+      );
+      ctx->invocations = 0;
+      ctx->pre_state = TIMER_INACTIVE;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_State_Scheduled: {
+      /*
+       * While the timer is in scheduled state.
+       */
+      /* The timer was already scheduled in the "Clock" pre-conditions. */
+      ctx->pre_state = TIMER_SCHEDULED;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_State_Pending: {
+      /*
+       * While the timer is in pending state.
+       */
+      rtems_status_code status;
+      if ( ctx->pre_cond_contex == PRE_SERVER ) {
+        /*
+         * This call to rtems_timer_fire_after() serves to reach branch coverage
+         * in an if-statement which only serves performance optimization.
+         *
+         * cpukit/rtems/src/timerserver.c:70 else-branch was not reached:
+         * if ( wakeup ) {
+         *   (void) rtems_event_system_send( ts->server_id, RTEMS_EVENT_SYSTEM_SERVER );
+         * }
+         */
+        status = rtems_timer_server_fire_after(
+          ctx->timer_cover_id,
+          SCHEDULE_VERY_SOON,
+          TimerServiceRoutineCover,
+          ctx
+        );
+        T_rsc_success( status );
+      }
+
+      T_rsc_success( rtems_task_suspend( GetTimerServerTaskId() ) );
+      TriggerTimer( ctx );
+      T_eq_int( ctx->invocations, 0 );
+      ctx->pre_state = TIMER_PENDING;
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Pre_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_Status_Check(
+  RtemsTimerReqServerFireAfter_Context    *ctx,
+  RtemsTimerReqServerFireAfter_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_server_fire_after() shall be
+       * RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_server_fire_after() shall be
+       * RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Status_InvAddr: {
+      /*
+       * The return status of rtems_timer_server_fire_after() shall be
+       * RTEMS_INVALID_ADDRESS.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ADDRESS );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Status_InvNum: {
+      /*
+       * The return status of rtems_timer_server_fire_after() shall be
+       * RTEMS_INVALID_NUMBER.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_NUMBER );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Status_IncStat: {
+      /*
+       * The return status of rtems_timer_server_fire_after() shall be
+       * RTEMS_INCORRECT_STATE.
+       */
+      T_rsc( ctx->status, RTEMS_INCORRECT_STATE );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_Context_Check(
+  RtemsTimerReqServerFireAfter_Context     *ctx,
+  RtemsTimerReqServerFireAfter_Post_Context state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_Context_None: {
+      /*
+       * The timer shall have never been scheduled. See also none.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Context_Interrupt: {
+      /*
+       * The timer shall be in interrupt context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, 0 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Context_Server: {
+      /*
+       * The timer shall be in server context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, TIMER_CLASS_BIT_ON_TASK );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Context_Nop: {
+      /*
+       * Objects referenced by the parameters in the past call to
+       * rtems_timer_server_fire_after() shall not be accessed by the
+       * rtems_timer_server_fire_after() call. See also Nop.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_Clock_Check(
+  RtemsTimerReqServerFireAfter_Context   *ctx,
+  RtemsTimerReqServerFireAfter_Post_Clock state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_Clock_None: {
+      /*
+       * The timer shall have never been scheduled.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Clock_Ticks: {
+      /*
+       * The timer shall use the ticks based clock.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_TIME_OF_DAY, 0 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Clock_Realtime: {
+      /*
+       * The timer shall use the realtime clock.
+       */
+      T_eq_int(
+        class & TIMER_CLASS_BIT_TIME_OF_DAY,
+        TIMER_CLASS_BIT_TIME_OF_DAY
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Clock_Nop: {
+      /*
+       * Objects referenced by the parameters in the past call to
+       * rtems_timer_server_fire_after() shall not be accessed by the
+       * rtems_timer_server_fire_after() call.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_State_Check(
+  RtemsTimerReqServerFireAfter_Context   *ctx,
+  RtemsTimerReqServerFireAfter_Post_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_State_Scheduled: {
+      /*
+       * The timer shall be in scheduled state.
+       */
+      ctx->ticks_till_fire = TriggerTimer( ctx );
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_State_Nop: {
+      /*
+       * Objects referenced by the parameters in the past call to
+       * rtems_timer_server_fire_after() shall not be accessed by the
+       * rtems_timer_server_fire_after() call.
+       */
+      T_eq_int( ctx->post_state, ctx->pre_state );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_Interval_Check(
+  RtemsTimerReqServerFireAfter_Context      *ctx,
+  RtemsTimerReqServerFireAfter_Post_Interval state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_Interval_Param: {
+      /*
+       * The Timer Service Routine shall be invoked the number of ticks (see
+       * tick), which are provided by the ``ticks`` parameter in the past call
+       * to rtems_timer_server_fire_after(), after a point in time during the
+       * execution of the rtems_timer_server_fire_after() call.
+       */
+      T_eq_int( ctx->ticks_till_fire, ctx->ticks_param );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Interval_Nop: {
+      /*
+       * If and when the Timer Service Routine will be invoked shall not be
+       * changed by the past call to rtems_timer_server_fire_after().
+       */
+      /*
+       * Whether the timer is scheduled has already been tested by the
+       * "Nop" "State" post-condition above.
+       */
+      T_eq_u32(
+        ctx->post_scheduling_data.interval,
+        ctx->pre_scheduling_data.interval
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Interval_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_Routine_Check(
+  RtemsTimerReqServerFireAfter_Context     *ctx,
+  RtemsTimerReqServerFireAfter_Post_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_Routine_Param: {
+      /*
+       * The function reference used to invoke the Timer Service Routine when
+       * the timer will fire shall be the one provided by the ``routine``
+       * parameter in the past call to rtems_timer_server_fire_after().
+       */
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Routine_Nop: {
+      /*
+       * The function reference used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_server_fire_after().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.routine,
+        ctx->pre_scheduling_data.routine
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireAfter_Post_UserData_Check(
+  RtemsTimerReqServerFireAfter_Context      *ctx,
+  RtemsTimerReqServerFireAfter_Post_UserData state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireAfter_Post_UserData_Param: {
+      /*
+       * The user data argument for invoking the Timer Service Routine when the
+       * timer will fire shall be the one provided by the ``user_data``
+       * parameter in the past call to rtems_timer_server_fire_after().
+       */
+      T_eq_ptr( ctx->routine_user_data, ctx );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_UserData_Nop: {
+      /*
+       * The user data argument used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_server_fire_after().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.user_data,
+        ctx->pre_scheduling_data.user_data
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireAfter_Post_UserData_NA:
+      break;
+  }
+}
+
+/**
+ * @brief Make sure the realtime clock is not set after this test.
+ */
+static void RtemsTimerReqServerFireAfter_Teardown(
+  RtemsTimerReqServerFireAfter_Context *ctx
+)
+{
+  UnsetClock();
+}
+
+static void RtemsTimerReqServerFireAfter_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqServerFireAfter_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqServerFireAfter_Teardown( ctx );
+}
+
+static void RtemsTimerReqServerFireAfter_Prepare(
+  RtemsTimerReqServerFireAfter_Context *ctx
+)
+{
+  rtems_status_code status;
+  status = rtems_timer_create(
+    rtems_build_name( 'T', 'I', 'M', 'E' ),
+    &ctx->timer_id
+  );
+  T_rsc_success( status );
+
+  status = rtems_timer_create(
+    rtems_build_name( 'C', 'O', 'V', 'R' ),
+    &ctx->timer_cover_id
+  );
+  T_rsc_success( status );
+
+  ctx->invocations               = 0;
+  ctx->ticks_till_fire           = SCHEDULE_NONE;
+  ctx->routine_user_data         = NULL;
+  T_rsc_success( rtems_clock_set( &tod_now ) );
+}
+
+static void RtemsTimerReqServerFireAfter_Action(
+  RtemsTimerReqServerFireAfter_Context *ctx
+)
+{
+  GetTimerSchedulingData( ctx->timer_id, &ctx->pre_scheduling_data );
+  ctx->pre_class = GetTimerClass( ctx->timer_id );
+  ctx->status = rtems_timer_server_fire_after(
+    ctx->id_param,
+    ctx->ticks_param,
+    ctx->routine_param,
+    ctx
+  );
+  ctx->post_state = GetTimerState( ctx->timer_id );
+  GetTimerSchedulingData( ctx->timer_id, &ctx->post_scheduling_data );
+  /* Ignoring return status: the timer server task may be suspended or not. */
+  rtems_task_resume( GetTimerServerTaskId() );
+}
+
+static void RtemsTimerReqServerFireAfter_Cleanup(
+  RtemsTimerReqServerFireAfter_Context *ctx
+)
+{
+  T_rsc_success( rtems_timer_delete( ctx->timer_cover_id ) );
+  T_rsc_success( rtems_timer_delete( ctx->timer_id ) );
+  DeleteTimerServer();
+}
+
+static const RtemsTimerReqServerFireAfter_Entry
+RtemsTimerReqServerFireAfter_Entries[] = {
+  { 1, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_NA,
+    RtemsTimerReqServerFireAfter_Post_Context_NA,
+    RtemsTimerReqServerFireAfter_Post_Clock_NA,
+    RtemsTimerReqServerFireAfter_Post_State_NA,
+    RtemsTimerReqServerFireAfter_Post_Interval_NA,
+    RtemsTimerReqServerFireAfter_Post_Routine_NA,
+    RtemsTimerReqServerFireAfter_Post_UserData_NA },
+  { 1, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_NA,
+    RtemsTimerReqServerFireAfter_Post_Context_NA,
+    RtemsTimerReqServerFireAfter_Post_Clock_NA,
+    RtemsTimerReqServerFireAfter_Post_State_NA,
+    RtemsTimerReqServerFireAfter_Post_Interval_NA,
+    RtemsTimerReqServerFireAfter_Post_Routine_NA,
+    RtemsTimerReqServerFireAfter_Post_UserData_NA },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_InvNum,
+    RtemsTimerReqServerFireAfter_Post_Context_Nop,
+    RtemsTimerReqServerFireAfter_Post_Clock_Nop,
+    RtemsTimerReqServerFireAfter_Post_State_Nop,
+    RtemsTimerReqServerFireAfter_Post_Interval_Nop,
+    RtemsTimerReqServerFireAfter_Post_Routine_Nop,
+    RtemsTimerReqServerFireAfter_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_IncStat,
+    RtemsTimerReqServerFireAfter_Post_Context_Nop,
+    RtemsTimerReqServerFireAfter_Post_Clock_Nop,
+    RtemsTimerReqServerFireAfter_Post_State_Nop,
+    RtemsTimerReqServerFireAfter_Post_Interval_Nop,
+    RtemsTimerReqServerFireAfter_Post_Routine_Nop,
+    RtemsTimerReqServerFireAfter_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_InvAddr,
+    RtemsTimerReqServerFireAfter_Post_Context_Nop,
+    RtemsTimerReqServerFireAfter_Post_Clock_Nop,
+    RtemsTimerReqServerFireAfter_Post_State_Nop,
+    RtemsTimerReqServerFireAfter_Post_Interval_Nop,
+    RtemsTimerReqServerFireAfter_Post_Routine_Nop,
+    RtemsTimerReqServerFireAfter_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_Ok,
+    RtemsTimerReqServerFireAfter_Post_Context_Server,
+    RtemsTimerReqServerFireAfter_Post_Clock_Ticks,
+    RtemsTimerReqServerFireAfter_Post_State_Scheduled,
+    RtemsTimerReqServerFireAfter_Post_Interval_Param,
+    RtemsTimerReqServerFireAfter_Post_Routine_Param,
+    RtemsTimerReqServerFireAfter_Post_UserData_Param },
+  { 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireAfter_Post_Status_InvId,
+    RtemsTimerReqServerFireAfter_Post_Context_Nop,
+    RtemsTimerReqServerFireAfter_Post_Clock_Nop,
+    RtemsTimerReqServerFireAfter_Post_State_Nop,
+    RtemsTimerReqServerFireAfter_Post_Interval_Nop,
+    RtemsTimerReqServerFireAfter_Post_Routine_Nop,
+    RtemsTimerReqServerFireAfter_Post_UserData_Nop }
+};
+
+static const uint8_t
+RtemsTimerReqServerFireAfter_Map[] = {
+  5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 5, 5, 0, 0, 0, 0, 5, 5, 5, 5, 5,
+  5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 6, 6, 0, 0, 0, 0, 6, 6, 6, 6,
+  6, 6, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4, 4,
+  4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4,
+  4, 4, 4, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0, 0, 2,
+  2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0, 0,
+  2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0,
+  0, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 2, 0, 0,
+  0, 0, 2, 2, 2, 2, 2, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0,
+  0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3,
+  0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3,
+  3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0,
+  3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3,
+  0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
+  3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1
+};
+
+static size_t RtemsTimerReqServerFireAfter_Scope(
+  void  *arg,
+  char  *buf,
+  size_t n
+)
+{
+  RtemsTimerReqServerFireAfter_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope(
+      RtemsTimerReqServerFireAfter_PreDesc,
+      buf,
+      n,
+      ctx->Map.pcs
+    );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqServerFireAfter_Fixture = {
+  .setup = NULL,
+  .stop = NULL,
+  .teardown = RtemsTimerReqServerFireAfter_Teardown_Wrap,
+  .scope = RtemsTimerReqServerFireAfter_Scope,
+  .initial_context = &RtemsTimerReqServerFireAfter_Instance
+};
+
+static inline RtemsTimerReqServerFireAfter_Entry
+RtemsTimerReqServerFireAfter_PopEntry(
+  RtemsTimerReqServerFireAfter_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqServerFireAfter_Entries[
+    RtemsTimerReqServerFireAfter_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqServerFireAfter_TestVariant(
+  RtemsTimerReqServerFireAfter_Context *ctx
+)
+{
+  RtemsTimerReqServerFireAfter_Pre_Server_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqServerFireAfter_Pre_Ticks_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqServerFireAfter_Pre_Routine_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqServerFireAfter_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqServerFireAfter_Pre_Context_Prepare( ctx, ctx->Map.pcs[ 4 ] );
+  RtemsTimerReqServerFireAfter_Pre_Clock_Prepare( ctx, ctx->Map.pcs[ 5 ] );
+  RtemsTimerReqServerFireAfter_Pre_State_Prepare( ctx, ctx->Map.pcs[ 6 ] );
+  RtemsTimerReqServerFireAfter_Action( ctx );
+  RtemsTimerReqServerFireAfter_Post_Status_Check(
+    ctx,
+    ctx->Map.entry.Post_Status
+  );
+  RtemsTimerReqServerFireAfter_Post_Context_Check(
+    ctx,
+    ctx->Map.entry.Post_Context
+  );
+  RtemsTimerReqServerFireAfter_Post_Clock_Check(
+    ctx,
+    ctx->Map.entry.Post_Clock
+  );
+  RtemsTimerReqServerFireAfter_Post_State_Check(
+    ctx,
+    ctx->Map.entry.Post_State
+  );
+  RtemsTimerReqServerFireAfter_Post_Interval_Check(
+    ctx,
+    ctx->Map.entry.Post_Interval
+  );
+  RtemsTimerReqServerFireAfter_Post_Routine_Check(
+    ctx,
+    ctx->Map.entry.Post_Routine
+  );
+  RtemsTimerReqServerFireAfter_Post_UserData_Check(
+    ctx,
+    ctx->Map.entry.Post_UserData
+  );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqServerFireAfter( void )
+ */
+T_TEST_CASE_FIXTURE(
+  RtemsTimerReqServerFireAfter,
+  &RtemsTimerReqServerFireAfter_Fixture
+)
+{
+  RtemsTimerReqServerFireAfter_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqServerFireAfter_Pre_Server_Init;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqServerFireAfter_Pre_Server_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqServerFireAfter_Pre_Ticks_Valid;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqServerFireAfter_Pre_Ticks_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqServerFireAfter_Pre_Routine_Valid;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqServerFireAfter_Pre_Routine_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqServerFireAfter_Pre_Id_Valid;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqServerFireAfter_Pre_Id_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          for (
+            ctx->Map.pcs[ 4 ] = RtemsTimerReqServerFireAfter_Pre_Context_None;
+            ctx->Map.pcs[ 4 ] < RtemsTimerReqServerFireAfter_Pre_Context_NA;
+            ++ctx->Map.pcs[ 4 ]
+          ) {
+            for (
+              ctx->Map.pcs[ 5 ] = RtemsTimerReqServerFireAfter_Pre_Clock_None;
+              ctx->Map.pcs[ 5 ] < RtemsTimerReqServerFireAfter_Pre_Clock_NA;
+              ++ctx->Map.pcs[ 5 ]
+            ) {
+              for (
+                ctx->Map.pcs[ 6 ] = RtemsTimerReqServerFireAfter_Pre_State_Inactive;
+                ctx->Map.pcs[ 6 ] < RtemsTimerReqServerFireAfter_Pre_State_NA;
+                ++ctx->Map.pcs[ 6 ]
+              ) {
+                ctx->Map.entry = RtemsTimerReqServerFireAfter_PopEntry( ctx );
+
+                if ( ctx->Map.entry.Skip ) {
+                  continue;
+                }
+
+                RtemsTimerReqServerFireAfter_Prepare( ctx );
+                RtemsTimerReqServerFireAfter_TestVariant( ctx );
+                RtemsTimerReqServerFireAfter_Cleanup( ctx );
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer-server-fire-when.c b/testsuites/validation/tc-timer-server-fire-when.c
new file mode 100644
index 0000000000..a918405058
--- /dev/null
+++ b/testsuites/validation/tc-timer-server-fire-when.c
@@ -0,0 +1,1417 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerReqServerFireWhen
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerReqServerFireWhen \
+ *   spec:/rtems/timer/req/server-fire-when
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @{
+ */
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_Server_Init,
+  RtemsTimerReqServerFireWhen_Pre_Server_NotInit,
+  RtemsTimerReqServerFireWhen_Pre_Server_NA
+} RtemsTimerReqServerFireWhen_Pre_Server;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_RtClock_Set,
+  RtemsTimerReqServerFireWhen_Pre_RtClock_Unset,
+  RtemsTimerReqServerFireWhen_Pre_RtClock_NA
+} RtemsTimerReqServerFireWhen_Pre_RtClock;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_Routine_Valid,
+  RtemsTimerReqServerFireWhen_Pre_Routine_Null,
+  RtemsTimerReqServerFireWhen_Pre_Routine_NA
+} RtemsTimerReqServerFireWhen_Pre_Routine;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_WallTime_Valid,
+  RtemsTimerReqServerFireWhen_Pre_WallTime_Invalid,
+  RtemsTimerReqServerFireWhen_Pre_WallTime_Past,
+  RtemsTimerReqServerFireWhen_Pre_WallTime_Null,
+  RtemsTimerReqServerFireWhen_Pre_WallTime_NA
+} RtemsTimerReqServerFireWhen_Pre_WallTime;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_Id_Valid,
+  RtemsTimerReqServerFireWhen_Pre_Id_Invalid,
+  RtemsTimerReqServerFireWhen_Pre_Id_NA
+} RtemsTimerReqServerFireWhen_Pre_Id;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_Context_None,
+  RtemsTimerReqServerFireWhen_Pre_Context_Interrupt,
+  RtemsTimerReqServerFireWhen_Pre_Context_Server,
+  RtemsTimerReqServerFireWhen_Pre_Context_NA
+} RtemsTimerReqServerFireWhen_Pre_Context;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_Clock_None,
+  RtemsTimerReqServerFireWhen_Pre_Clock_Ticks,
+  RtemsTimerReqServerFireWhen_Pre_Clock_Realtime,
+  RtemsTimerReqServerFireWhen_Pre_Clock_NA
+} RtemsTimerReqServerFireWhen_Pre_Clock;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Pre_State_Inactive,
+  RtemsTimerReqServerFireWhen_Pre_State_Scheduled,
+  RtemsTimerReqServerFireWhen_Pre_State_Pending,
+  RtemsTimerReqServerFireWhen_Pre_State_NA
+} RtemsTimerReqServerFireWhen_Pre_State;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_Status_Ok,
+  RtemsTimerReqServerFireWhen_Post_Status_NotDef,
+  RtemsTimerReqServerFireWhen_Post_Status_InvId,
+  RtemsTimerReqServerFireWhen_Post_Status_InvAddr,
+  RtemsTimerReqServerFireWhen_Post_Status_InvClock,
+  RtemsTimerReqServerFireWhen_Post_Status_IncStat,
+  RtemsTimerReqServerFireWhen_Post_Status_NA
+} RtemsTimerReqServerFireWhen_Post_Status;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_Context_None,
+  RtemsTimerReqServerFireWhen_Post_Context_Interrupt,
+  RtemsTimerReqServerFireWhen_Post_Context_Server,
+  RtemsTimerReqServerFireWhen_Post_Context_Nop,
+  RtemsTimerReqServerFireWhen_Post_Context_NA
+} RtemsTimerReqServerFireWhen_Post_Context;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_Clock_None,
+  RtemsTimerReqServerFireWhen_Post_Clock_Ticks,
+  RtemsTimerReqServerFireWhen_Post_Clock_Realtime,
+  RtemsTimerReqServerFireWhen_Post_Clock_Nop,
+  RtemsTimerReqServerFireWhen_Post_Clock_NA
+} RtemsTimerReqServerFireWhen_Post_Clock;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_State_Scheduled,
+  RtemsTimerReqServerFireWhen_Post_State_Nop,
+  RtemsTimerReqServerFireWhen_Post_State_NA
+} RtemsTimerReqServerFireWhen_Post_State;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_WallTime_Param,
+  RtemsTimerReqServerFireWhen_Post_WallTime_Nop,
+  RtemsTimerReqServerFireWhen_Post_WallTime_NA
+} RtemsTimerReqServerFireWhen_Post_WallTime;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_Routine_Param,
+  RtemsTimerReqServerFireWhen_Post_Routine_Nop,
+  RtemsTimerReqServerFireWhen_Post_Routine_NA
+} RtemsTimerReqServerFireWhen_Post_Routine;
+
+typedef enum {
+  RtemsTimerReqServerFireWhen_Post_UserData_Param,
+  RtemsTimerReqServerFireWhen_Post_UserData_Nop,
+  RtemsTimerReqServerFireWhen_Post_UserData_NA
+} RtemsTimerReqServerFireWhen_Post_UserData;
+
+typedef struct {
+  uint32_t Skip : 1;
+  uint32_t Pre_Server_NA : 1;
+  uint32_t Pre_RtClock_NA : 1;
+  uint32_t Pre_Routine_NA : 1;
+  uint32_t Pre_WallTime_NA : 1;
+  uint32_t Pre_Id_NA : 1;
+  uint32_t Pre_Context_NA : 1;
+  uint32_t Pre_Clock_NA : 1;
+  uint32_t Pre_State_NA : 1;
+  uint32_t Post_Status : 3;
+  uint32_t Post_Context : 3;
+  uint32_t Post_Clock : 3;
+  uint32_t Post_State : 2;
+  uint32_t Post_WallTime : 2;
+  uint32_t Post_Routine : 2;
+  uint32_t Post_UserData : 2;
+} RtemsTimerReqServerFireWhen_Entry;
+
+typedef enum {
+  PRE_NONE      = 0,
+  PRE_INTERRUPT = 1,
+  PRE_SERVER    = 2
+} PreConditionContext;
+
+typedef enum {
+  SCHEDULE_NONE  = 0,
+  SCHEDULE_SOON  = 1,
+  SCHEDULE_MAX   = 5
+} Scheduling_Ticks;
+
+/**
+ * @brief Test context for spec:/rtems/timer/req/server-fire-when test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains a valid id of a timer.
+   */
+  rtems_id timer_id;
+
+  /**
+   * @brief This member specifies the ``id`` parameter for the action.
+   */
+  rtems_id id_param;
+
+  /**
+   * @brief This member specifies the ``wall_time`` parameter for the action.
+   */
+  const rtems_time_of_day *wall_time_param;
+
+  /**
+   * @brief This member specifies the ``routine`` parameter for the action.
+   */
+  rtems_timer_service_routine_entry routine_param;
+
+  /**
+   * @brief This member contains the returned status code of the action.
+   */
+  rtems_status_code status;
+
+  /**
+   * @brief This member contains a counter of invocations of the Timer Service
+   *   Routine.
+   */
+  int invocations;
+
+  /**
+   * @brief Function TriggerTimer() is used to figure out when the Timer
+   *   Service Routine gets executed. This member contains the time-of-day when
+   *   the Timer Service Routine fires (see fire).
+   */
+  rtems_time_of_day tod_till_fire;
+
+  /**
+   * @brief This member contains the user data given to the Timer Service
+   *   Routine when called.
+   */
+  void *routine_user_data;
+
+  /**
+   * @brief This member specifies which pre-condition context (none, interrupt
+   *   context, server context) must be created before the
+   *   rtems_timer_server_fire_when() action gets executed.
+   */
+  PreConditionContext pre_cond_contex;
+
+  /**
+   * @brief This member specifies the pre-condition state of the realtime
+   *   clock. It should either be set to the value referenced by pre_cond_tod
+   *   or if NULL, then the realtime clock should be not set.
+   */
+  const rtems_time_of_day *pre_cond_tod;
+
+  /**
+   * @brief This member stores internal clock and context settings of the timer
+   *   before the execution of the test action.
+   */
+  Timer_Classes pre_class;
+
+  /**
+   * @brief This member stores the state of the timer before the execution of
+   *   the test action.
+   */
+  Timer_States pre_state;
+
+  /**
+   * @brief This member stores the state of the timer after the execution of
+   *   the test action.
+   */
+  Timer_States post_state;
+
+  /**
+   * @brief This member stores the scheduling data of the timer before the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data pre_scheduling_data;
+
+  /**
+   * @brief This member stores the scheduling data of the timer after the
+   *   execution of the test action.
+   */
+  Timer_Scheduling_Data post_scheduling_data;
+
+  struct {
+    /**
+     * @brief This member defines the pre-condition states for the next action.
+     */
+    size_t pcs[ 8 ];
+
+    /**
+     * @brief If this member is true, then the test action loop is executed.
+     */
+    bool in_action_loop;
+
+    /**
+     * @brief This member contains the next transition map index.
+     */
+    size_t index;
+
+    /**
+     * @brief This member contains the current transition map entry.
+     */
+    RtemsTimerReqServerFireWhen_Entry entry;
+
+    /**
+     * @brief If this member is true, then the current transition variant
+     *   should be skipped.
+     */
+    bool skip;
+  } Map;
+} RtemsTimerReqServerFireWhen_Context;
+
+static RtemsTimerReqServerFireWhen_Context
+  RtemsTimerReqServerFireWhen_Instance;
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_Server[] = {
+  "Init",
+  "NotInit",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_RtClock[] = {
+  "Set",
+  "Unset",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_Routine[] = {
+  "Valid",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_WallTime[] = {
+  "Valid",
+  "Invalid",
+  "Past",
+  "Null",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_Id[] = {
+  "Valid",
+  "Invalid",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_Context[] = {
+  "None",
+  "Interrupt",
+  "Server",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_Clock[] = {
+  "None",
+  "Ticks",
+  "Realtime",
+  "NA"
+};
+
+static const char * const RtemsTimerReqServerFireWhen_PreDesc_State[] = {
+  "Inactive",
+  "Scheduled",
+  "Pending",
+  "NA"
+};
+
+static const char * const * const RtemsTimerReqServerFireWhen_PreDesc[] = {
+  RtemsTimerReqServerFireWhen_PreDesc_Server,
+  RtemsTimerReqServerFireWhen_PreDesc_RtClock,
+  RtemsTimerReqServerFireWhen_PreDesc_Routine,
+  RtemsTimerReqServerFireWhen_PreDesc_WallTime,
+  RtemsTimerReqServerFireWhen_PreDesc_Id,
+  RtemsTimerReqServerFireWhen_PreDesc_Context,
+  RtemsTimerReqServerFireWhen_PreDesc_Clock,
+  RtemsTimerReqServerFireWhen_PreDesc_State,
+  NULL
+};
+
+static const rtems_time_of_day tod_now      = { 2000, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_schedule = { 2000, 1, 1, 5, 0, 0, 0 };
+static const rtems_time_of_day tod_invalid  = { 1985, 1, 1, 0, 0, 0, 0 };
+static const rtems_time_of_day tod_past     = { 1999, 12, 31, 23, 59, 59, 1 };
+
+static void TriggerTimer(
+  const RtemsTimerReqServerFireWhen_Context *ctx,
+  rtems_time_of_day *tod_fire
+)
+{
+  rtems_time_of_day tod = tod_now;
+  int invocations_old = ctx->invocations;
+  int i;
+
+  /* Fire the timer service routine for ticks and realtime clock */
+  for ( i = 1; i <= SCHEDULE_MAX; ++i ) {
+    ClockTick();
+  }
+
+  for ( i = 1; i < 24; ++i ) {
+    tod.hour = i;
+    T_rsc_success( rtems_clock_set( &tod ) );
+    if ( tod_fire != NULL && ctx->invocations > invocations_old ) {
+      *tod_fire = tod;
+      break;
+    }
+  }
+}
+
+static void TimerServiceRoutine(
+  rtems_id timer_id,
+  void *user_data
+)
+{
+  RtemsTimerReqServerFireWhen_Context *ctx = user_data;
+  ++( ctx->invocations );
+  ctx->routine_user_data = user_data;
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_Server_Prepare(
+  RtemsTimerReqServerFireWhen_Context   *ctx,
+  RtemsTimerReqServerFireWhen_Pre_Server state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_Server_Init: {
+      /*
+       * While the Timer Server task has been successfully initialized by a
+       * call to rtems_timer_initiate_server().
+       */
+      rtems_status_code status;
+      status = rtems_timer_initiate_server(
+        RTEMS_TIMER_SERVER_DEFAULT_PRIORITY,
+        RTEMS_MINIMUM_STACK_SIZE,
+        RTEMS_DEFAULT_ATTRIBUTES
+      );
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Server_NotInit: {
+      /*
+       * While the Timer Server task has not been initialized and does not
+       * exist.
+       */
+      DeleteTimerServer();
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Server_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_RtClock_Prepare(
+  RtemsTimerReqServerFireWhen_Context    *ctx,
+  RtemsTimerReqServerFireWhen_Pre_RtClock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_RtClock_Set: {
+      /*
+       * While the realtime clock is set to a valid time-of-day.
+       */
+      ctx->pre_cond_tod = &tod_now;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_RtClock_Unset: {
+      /*
+       * While the realtime clock has never been set.
+       */
+      ctx->pre_cond_tod = NULL;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_RtClock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_Routine_Prepare(
+  RtemsTimerReqServerFireWhen_Context    *ctx,
+  RtemsTimerReqServerFireWhen_Pre_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_Routine_Valid: {
+      /*
+       * While the ``routine`` parameter references an object of type
+       * rtems_timer_service_routine_entry.
+       */
+      ctx->routine_param = TimerServiceRoutine;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Routine_Null: {
+      /*
+       * While the ``routine`` parameter is NULL..
+       */
+      ctx->routine_param = NULL;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_WallTime_Prepare(
+  RtemsTimerReqServerFireWhen_Context     *ctx,
+  RtemsTimerReqServerFireWhen_Pre_WallTime state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_WallTime_Valid: {
+      /*
+       * While the ``wall_time`` parameter references a time at least one
+       * second in the future but not later than the last second of the year
+       * 2105. (Times after 2105 are invalid.)
+       */
+      ctx->wall_time_param = &tod_schedule;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_WallTime_Invalid: {
+      /*
+       * While the ``wall_time`` parameter is invalid.
+       */
+      ctx->wall_time_param = &tod_invalid;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_WallTime_Past: {
+      /*
+       * While the ``wall_time`` parameter references a time in the current
+       * second or in the past but not earlier than 1988. (Times before 1988
+       * are invalid.)
+       */
+      ctx->wall_time_param = &tod_past;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_WallTime_Null: {
+      /*
+       * While the ``wall_time`` parameter is 0.
+       */
+      ctx->wall_time_param = NULL;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_WallTime_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_Id_Prepare(
+  RtemsTimerReqServerFireWhen_Context *ctx,
+  RtemsTimerReqServerFireWhen_Pre_Id   state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_Id_Valid: {
+      /*
+       * While the ``id`` parameter is valid.
+       */
+      ctx->id_param = ctx->timer_id;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Id_Invalid: {
+      /*
+       * While the ``id`` parameter is invalid.
+       */
+      ctx->id_param = RTEMS_ID_NONE;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Id_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_Context_Prepare(
+  RtemsTimerReqServerFireWhen_Context    *ctx,
+  RtemsTimerReqServerFireWhen_Pre_Context state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_Context_None: {
+      /*
+       * While the Timer Service Routine has never been scheduled since
+       * creation of the timer. See also none.
+       */
+      ctx->pre_cond_contex = PRE_NONE;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Context_Interrupt: {
+      /*
+       * While the timer is in interrupt context.
+       */
+      ctx->pre_cond_contex = PRE_INTERRUPT;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Context_Server: {
+      /*
+       * While the timer is in server context.
+       */
+      ctx->pre_cond_contex = PRE_SERVER;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_Clock_Prepare(
+  RtemsTimerReqServerFireWhen_Context  *ctx,
+  RtemsTimerReqServerFireWhen_Pre_Clock state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_Clock_None: {
+      /*
+       * While the timer has never been scheduled since creation of the timer.
+       */
+      T_eq_int( ctx->pre_cond_contex, PRE_NONE );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Clock_Ticks: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * ticks based clock.
+       */
+      rtems_status_code status;
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_after(
+          ctx->timer_id,
+          SCHEDULE_SOON,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Clock_Realtime: {
+      /*
+       * While the clock used to determine when the timer will fire is the
+       * realtime clock.
+       */
+      rtems_status_code status;
+      T_rsc_success( rtems_clock_set( &tod_now ) );
+
+      if ( ctx->pre_cond_contex == PRE_INTERRUPT ) {
+        status = rtems_timer_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      } else {
+        status = rtems_timer_server_fire_when(
+          ctx->timer_id,
+          &tod_schedule,
+          TimerServiceRoutine,
+          ctx
+        );
+      }
+      T_rsc_success( status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Pre_State_Prepare(
+  RtemsTimerReqServerFireWhen_Context  *ctx,
+  RtemsTimerReqServerFireWhen_Pre_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Pre_State_Inactive: {
+      /*
+       * While the timer is in inactive state.
+       */
+      TriggerTimer( ctx, NULL );
+      T_eq_int(
+        ctx->invocations,
+        ( ctx->pre_cond_contex == PRE_NONE ) ? 0 : 1
+      );
+      ctx->invocations = 0;
+      ctx->pre_state = TIMER_INACTIVE;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_State_Scheduled: {
+      /*
+       * While the timer is in scheduled state.
+       */
+      /* The timer was already scheduled in the "Clock" pre-conditions. */
+      ctx->pre_state = TIMER_SCHEDULED;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_State_Pending: {
+      /*
+       * While the timer is in pending state.
+       */
+      T_rsc_success( rtems_task_suspend( GetTimerServerTaskId() ) );
+      TriggerTimer( ctx, NULL );
+      T_eq_int( ctx->invocations, 0 );
+      ctx->pre_state = TIMER_PENDING;
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Pre_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_Status_Check(
+  RtemsTimerReqServerFireWhen_Context    *ctx,
+  RtemsTimerReqServerFireWhen_Post_Status state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_Status_Ok: {
+      /*
+       * The return status of rtems_timer_server_fire_when() shall be
+       * RTEMS_SUCCESSFUL.
+       */
+      T_rsc_success( ctx->status );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Status_NotDef: {
+      /*
+       * The return status of rtems_timer_server_fire_when() shall be
+       * RTEMS_NOT_DEFINED
+       */
+      T_rsc( ctx->status, RTEMS_NOT_DEFINED );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Status_InvId: {
+      /*
+       * The return status of rtems_timer_server_fire_when() shall be
+       * RTEMS_INVALID_ID.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ID );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Status_InvAddr: {
+      /*
+       * The return status of rtems_timer_server_fire_when() shall be
+       * RTEMS_INVALID_ADDRESS.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_ADDRESS );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Status_InvClock: {
+      /*
+       * The return status of rtems_timer_server_fire_when() shall be
+       * RTEMS_INVALID_CLOCK.
+       */
+      T_rsc( ctx->status, RTEMS_INVALID_CLOCK );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Status_IncStat: {
+      /*
+       * The return status of rtems_timer_server_fire_when() shall be
+       * RTEMS_INCORRECT_STATE.
+       */
+      T_rsc( ctx->status, RTEMS_INCORRECT_STATE );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Status_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_Context_Check(
+  RtemsTimerReqServerFireWhen_Context     *ctx,
+  RtemsTimerReqServerFireWhen_Post_Context state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_Context_None: {
+      /*
+       * The timer shall have never been scheduled. See also none.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Context_Interrupt: {
+      /*
+       * The timer shall be in interrupt context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, 0 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Context_Server: {
+      /*
+       * The timer shall be in server context.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_ON_TASK, TIMER_CLASS_BIT_ON_TASK );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Context_Nop: {
+      /*
+       * Objects referenced by parameters in the past call to
+       * rtems_timer_server_fire_when() shall not be accessed by the
+       * rtems_timer_server_fire_when() call. See also Nop.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Context_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_Clock_Check(
+  RtemsTimerReqServerFireWhen_Context   *ctx,
+  RtemsTimerReqServerFireWhen_Post_Clock state
+)
+{
+  Timer_Classes class;
+  class = GetTimerClass( ctx->timer_id );
+
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_Clock_None: {
+      /*
+       * The timer shall have never been scheduled.
+       */
+      T_eq_int( class, TIMER_DORMANT );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Clock_Ticks: {
+      /*
+       * The timer shall use the ticks based clock.
+       */
+      T_eq_int( class & TIMER_CLASS_BIT_TIME_OF_DAY, 0 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Clock_Realtime: {
+      /*
+       * The timer shall use the realtime clock.
+       */
+      T_eq_int(
+        class & TIMER_CLASS_BIT_TIME_OF_DAY,
+        TIMER_CLASS_BIT_TIME_OF_DAY
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Clock_Nop: {
+      /*
+       * Objects referenced by parameters in the past call to
+       * rtems_timer_server_fire_when() shall not be accessed by the
+       * rtems_timer_server_fire_when() call.
+       */
+      T_eq_int( class, ctx->pre_class );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Clock_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_State_Check(
+  RtemsTimerReqServerFireWhen_Context   *ctx,
+  RtemsTimerReqServerFireWhen_Post_State state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_State_Scheduled: {
+      /*
+       * The timer shall be in scheduled state.
+       */
+      TriggerTimer( ctx, &ctx->tod_till_fire );
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_State_Nop: {
+      /*
+       * Objects referenced by parameters in the past call to
+       * rtems_timer_server_fire_when() shall not be accessed by the
+       * rtems_timer_server_fire_when() call.
+       */
+      T_eq_int( ctx->post_state, ctx->pre_state );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_State_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_WallTime_Check(
+  RtemsTimerReqServerFireWhen_Context      *ctx,
+  RtemsTimerReqServerFireWhen_Post_WallTime state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_WallTime_Param: {
+      /*
+       * The Timer Service Routine shall be invoked at the wall time (see
+       * realtime clock) (ignoring ticks), which was provided by the
+       * ``wall_time`` parameter in the past call to
+       * rtems_timer_server_fire_when().
+       */
+      T_eq_mem(
+        &ctx->tod_till_fire,
+        ctx->wall_time_param,
+        sizeof( ctx->tod_till_fire )
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_WallTime_Nop: {
+      /*
+       * If and when the Timer Service Routine will be invoked shall not be
+       * changed by the past call to rtems_timer_server_fire_when().
+       */
+      /*
+       * Whether the timer is scheduled has already been tested by the
+       * "Nop" "State" post-condition above.
+       */
+      T_eq_u32(
+        ctx->post_scheduling_data.interval,
+        ctx->pre_scheduling_data.interval
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_WallTime_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_Routine_Check(
+  RtemsTimerReqServerFireWhen_Context     *ctx,
+  RtemsTimerReqServerFireWhen_Post_Routine state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_Routine_Param: {
+      /*
+       * The function reference used to invoke the Timer Service Routine when
+       * the timer will fire shall be the one provided by the ``routine``
+       * parameter in the past call to rtems_timer_server_fire_when().
+       */
+      T_eq_int( ctx->invocations, 1 );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Routine_Nop: {
+      /*
+       * The function reference used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_server_fire_when().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.routine,
+        ctx->pre_scheduling_data.routine
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_Routine_NA:
+      break;
+  }
+}
+
+static void RtemsTimerReqServerFireWhen_Post_UserData_Check(
+  RtemsTimerReqServerFireWhen_Context      *ctx,
+  RtemsTimerReqServerFireWhen_Post_UserData state
+)
+{
+  switch ( state ) {
+    case RtemsTimerReqServerFireWhen_Post_UserData_Param: {
+      /*
+       * The user data argument for invoking the Timer Service Routine when the
+       * timer will fire shall be the one provided by the ``user_data``
+       * parameter in the past call to rtems_timer_server_fire_when().
+       */
+      T_eq_ptr( ctx->routine_user_data, ctx );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_UserData_Nop: {
+      /*
+       * The user data argument used for any invocation of the Timer Service
+       * Routine shall not be changed by the past call to
+       * rtems_timer_server_fire_when().
+       */
+      T_eq_ptr(
+        ctx->post_scheduling_data.user_data,
+        ctx->pre_scheduling_data.user_data
+      );
+      break;
+    }
+
+    case RtemsTimerReqServerFireWhen_Post_UserData_NA:
+      break;
+  }
+}
+
+/**
+ * @brief Make sure the realtime clock is not set after this test.
+ */
+static void RtemsTimerReqServerFireWhen_Teardown(
+  RtemsTimerReqServerFireWhen_Context *ctx
+)
+{
+  UnsetClock();
+}
+
+static void RtemsTimerReqServerFireWhen_Teardown_Wrap( void *arg )
+{
+  RtemsTimerReqServerFireWhen_Context *ctx;
+
+  ctx = arg;
+  ctx->Map.in_action_loop = false;
+  RtemsTimerReqServerFireWhen_Teardown( ctx );
+}
+
+static void RtemsTimerReqServerFireWhen_Prepare(
+  RtemsTimerReqServerFireWhen_Context *ctx
+)
+{
+  rtems_status_code status;
+  status = rtems_timer_create(
+    rtems_build_name( 'T', 'I', 'M', 'E' ),
+    &ctx->timer_id
+  );
+  T_rsc_success( status );
+
+  ctx->invocations       = 0;
+  ctx->routine_user_data = NULL;
+}
+
+static void RtemsTimerReqServerFireWhen_Action(
+  RtemsTimerReqServerFireWhen_Context *ctx
+)
+{
+  GetTimerSchedulingData( ctx->timer_id, &ctx->pre_scheduling_data );
+  ctx->pre_class = GetTimerClass( ctx->timer_id );
+  if ( ctx->pre_cond_tod == NULL ) {
+    UnsetClock();
+  } else {
+    T_rsc_success( rtems_clock_set( ctx->pre_cond_tod ) );
+  }
+  ctx->status = rtems_timer_server_fire_when(
+    ctx->id_param,
+    ctx->wall_time_param,
+    ctx->routine_param,
+    ctx
+  );
+  ctx->post_state = GetTimerState( ctx->timer_id );
+  GetTimerSchedulingData( ctx->timer_id, &ctx->post_scheduling_data );
+  /* Ignoring return status: the timer server task may be suspended or not. */
+  rtems_task_resume( GetTimerServerTaskId() );
+}
+
+static void RtemsTimerReqServerFireWhen_Cleanup(
+  RtemsTimerReqServerFireWhen_Context *ctx
+)
+{
+  T_rsc_success( rtems_timer_delete( ctx->timer_id ) );
+  DeleteTimerServer();
+}
+
+static const RtemsTimerReqServerFireWhen_Entry
+RtemsTimerReqServerFireWhen_Entries[] = {
+  { 1, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_NA,
+    RtemsTimerReqServerFireWhen_Post_Context_NA,
+    RtemsTimerReqServerFireWhen_Post_Clock_NA,
+    RtemsTimerReqServerFireWhen_Post_State_NA,
+    RtemsTimerReqServerFireWhen_Post_WallTime_NA,
+    RtemsTimerReqServerFireWhen_Post_Routine_NA,
+    RtemsTimerReqServerFireWhen_Post_UserData_NA },
+  { 1, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_NA,
+    RtemsTimerReqServerFireWhen_Post_Context_NA,
+    RtemsTimerReqServerFireWhen_Post_Clock_NA,
+    RtemsTimerReqServerFireWhen_Post_State_NA,
+    RtemsTimerReqServerFireWhen_Post_WallTime_NA,
+    RtemsTimerReqServerFireWhen_Post_Routine_NA,
+    RtemsTimerReqServerFireWhen_Post_UserData_NA },
+  { 1, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_NA,
+    RtemsTimerReqServerFireWhen_Post_Context_NA,
+    RtemsTimerReqServerFireWhen_Post_Clock_NA,
+    RtemsTimerReqServerFireWhen_Post_State_NA,
+    RtemsTimerReqServerFireWhen_Post_WallTime_NA,
+    RtemsTimerReqServerFireWhen_Post_Routine_NA,
+    RtemsTimerReqServerFireWhen_Post_UserData_NA },
+  { 0, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_IncStat,
+    RtemsTimerReqServerFireWhen_Post_Context_Nop,
+    RtemsTimerReqServerFireWhen_Post_Clock_Nop,
+    RtemsTimerReqServerFireWhen_Post_State_Nop,
+    RtemsTimerReqServerFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqServerFireWhen_Post_Routine_Nop,
+    RtemsTimerReqServerFireWhen_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_InvAddr,
+    RtemsTimerReqServerFireWhen_Post_Context_Nop,
+    RtemsTimerReqServerFireWhen_Post_Clock_Nop,
+    RtemsTimerReqServerFireWhen_Post_State_Nop,
+    RtemsTimerReqServerFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqServerFireWhen_Post_Routine_Nop,
+    RtemsTimerReqServerFireWhen_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_NotDef,
+    RtemsTimerReqServerFireWhen_Post_Context_Nop,
+    RtemsTimerReqServerFireWhen_Post_Clock_Nop,
+    RtemsTimerReqServerFireWhen_Post_State_Nop,
+    RtemsTimerReqServerFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqServerFireWhen_Post_Routine_Nop,
+    RtemsTimerReqServerFireWhen_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    RtemsTimerReqServerFireWhen_Post_Status_InvClock,
+    RtemsTimerReqServerFireWhen_Post_Context_Nop,
+    RtemsTimerReqServerFireWhen_Post_Clock_Nop,
+    RtemsTimerReqServerFireWhen_Post_State_Nop,
+    RtemsTimerReqServerFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqServerFireWhen_Post_Routine_Nop,
+    RtemsTimerReqServerFireWhen_Post_UserData_Nop },
+  { 0, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_Ok,
+    RtemsTimerReqServerFireWhen_Post_Context_Server,
+    RtemsTimerReqServerFireWhen_Post_Clock_Realtime,
+    RtemsTimerReqServerFireWhen_Post_State_Scheduled,
+    RtemsTimerReqServerFireWhen_Post_WallTime_Param,
+    RtemsTimerReqServerFireWhen_Post_Routine_Param,
+    RtemsTimerReqServerFireWhen_Post_UserData_Param },
+  { 0, 0, 0, 0, 0, 0, 0, 0, 0, RtemsTimerReqServerFireWhen_Post_Status_InvId,
+    RtemsTimerReqServerFireWhen_Post_Context_Nop,
+    RtemsTimerReqServerFireWhen_Post_Clock_Nop,
+    RtemsTimerReqServerFireWhen_Post_State_Nop,
+    RtemsTimerReqServerFireWhen_Post_WallTime_Nop,
+    RtemsTimerReqServerFireWhen_Post_Routine_Nop,
+    RtemsTimerReqServerFireWhen_Post_UserData_Nop }
+};
+
+static const uint8_t
+RtemsTimerReqServerFireWhen_Map[] = {
+  7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 7, 0, 7, 7, 0, 0, 0, 0, 7, 7, 7, 7, 7,
+  7, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 0, 8, 8, 0, 0, 0, 0, 8, 8, 8, 8,
+  8, 8, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 6, 6, 0, 0, 0, 0, 6, 6, 6,
+  6, 6, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 6, 6, 0, 0, 0, 0, 6, 6,
+  6, 6, 6, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 6, 6, 0, 0, 0, 0, 6,
+  6, 6, 6, 6, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 6, 6, 0, 0, 0, 0,
+  6, 6, 6, 6, 6, 6, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0, 0,
+  0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0, 0,
+  0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 0,
+  0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 4,
+  0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4,
+  4, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0,
+  4, 4, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4,
+  0, 4, 4, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4,
+  4, 0, 4, 4, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 4, 4, 0, 4, 4, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2, 5,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2, 2,
+  5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2, 2,
+  2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5, 2,
+  2, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5, 5,
+  2, 2, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5, 5,
+  5, 2, 2, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0, 5,
+  5, 5, 2, 2, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 2, 2, 2, 0, 0, 0,
+  5, 5, 5, 2, 2, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0,
+  0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0,
+  0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3,
+  0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3,
+  3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0,
+  3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3,
+  0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
+  3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1, 1,
+  3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1,
+  1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1, 1,
+  1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1, 1,
+  1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1, 1,
+  1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0, 1,
+  1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0, 0,
+  1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2, 0,
+  0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2, 2,
+  0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2, 2,
+  2, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 2,
+  2, 2, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 0,
+  2, 2, 2, 0, 0, 0, 1, 1, 1, 1, 1, 1
+};
+
+static size_t RtemsTimerReqServerFireWhen_Scope(
+  void  *arg,
+  char  *buf,
+  size_t n
+)
+{
+  RtemsTimerReqServerFireWhen_Context *ctx;
+
+  ctx = arg;
+
+  if ( ctx->Map.in_action_loop ) {
+    return T_get_scope(
+      RtemsTimerReqServerFireWhen_PreDesc,
+      buf,
+      n,
+      ctx->Map.pcs
+    );
+  }
+
+  return 0;
+}
+
+static T_fixture RtemsTimerReqServerFireWhen_Fixture = {
+  .setup = NULL,
+  .stop = NULL,
+  .teardown = RtemsTimerReqServerFireWhen_Teardown_Wrap,
+  .scope = RtemsTimerReqServerFireWhen_Scope,
+  .initial_context = &RtemsTimerReqServerFireWhen_Instance
+};
+
+static inline RtemsTimerReqServerFireWhen_Entry
+RtemsTimerReqServerFireWhen_PopEntry(
+  RtemsTimerReqServerFireWhen_Context *ctx
+)
+{
+  size_t index;
+
+  index = ctx->Map.index;
+  ctx->Map.index = index + 1;
+  return RtemsTimerReqServerFireWhen_Entries[
+    RtemsTimerReqServerFireWhen_Map[ index ]
+  ];
+}
+
+static void RtemsTimerReqServerFireWhen_TestVariant(
+  RtemsTimerReqServerFireWhen_Context *ctx
+)
+{
+  RtemsTimerReqServerFireWhen_Pre_Server_Prepare( ctx, ctx->Map.pcs[ 0 ] );
+  RtemsTimerReqServerFireWhen_Pre_RtClock_Prepare( ctx, ctx->Map.pcs[ 1 ] );
+  RtemsTimerReqServerFireWhen_Pre_Routine_Prepare( ctx, ctx->Map.pcs[ 2 ] );
+  RtemsTimerReqServerFireWhen_Pre_WallTime_Prepare( ctx, ctx->Map.pcs[ 3 ] );
+  RtemsTimerReqServerFireWhen_Pre_Id_Prepare( ctx, ctx->Map.pcs[ 4 ] );
+  RtemsTimerReqServerFireWhen_Pre_Context_Prepare( ctx, ctx->Map.pcs[ 5 ] );
+  RtemsTimerReqServerFireWhen_Pre_Clock_Prepare( ctx, ctx->Map.pcs[ 6 ] );
+  RtemsTimerReqServerFireWhen_Pre_State_Prepare( ctx, ctx->Map.pcs[ 7 ] );
+  RtemsTimerReqServerFireWhen_Action( ctx );
+  RtemsTimerReqServerFireWhen_Post_Status_Check(
+    ctx,
+    ctx->Map.entry.Post_Status
+  );
+  RtemsTimerReqServerFireWhen_Post_Context_Check(
+    ctx,
+    ctx->Map.entry.Post_Context
+  );
+  RtemsTimerReqServerFireWhen_Post_Clock_Check(
+    ctx,
+    ctx->Map.entry.Post_Clock
+  );
+  RtemsTimerReqServerFireWhen_Post_State_Check(
+    ctx,
+    ctx->Map.entry.Post_State
+  );
+  RtemsTimerReqServerFireWhen_Post_WallTime_Check(
+    ctx,
+    ctx->Map.entry.Post_WallTime
+  );
+  RtemsTimerReqServerFireWhen_Post_Routine_Check(
+    ctx,
+    ctx->Map.entry.Post_Routine
+  );
+  RtemsTimerReqServerFireWhen_Post_UserData_Check(
+    ctx,
+    ctx->Map.entry.Post_UserData
+  );
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerReqServerFireWhen( void )
+ */
+T_TEST_CASE_FIXTURE(
+  RtemsTimerReqServerFireWhen,
+  &RtemsTimerReqServerFireWhen_Fixture
+)
+{
+  RtemsTimerReqServerFireWhen_Context *ctx;
+
+  ctx = T_fixture_context();
+  ctx->Map.in_action_loop = true;
+  ctx->Map.index = 0;
+
+  for (
+    ctx->Map.pcs[ 0 ] = RtemsTimerReqServerFireWhen_Pre_Server_Init;
+    ctx->Map.pcs[ 0 ] < RtemsTimerReqServerFireWhen_Pre_Server_NA;
+    ++ctx->Map.pcs[ 0 ]
+  ) {
+    for (
+      ctx->Map.pcs[ 1 ] = RtemsTimerReqServerFireWhen_Pre_RtClock_Set;
+      ctx->Map.pcs[ 1 ] < RtemsTimerReqServerFireWhen_Pre_RtClock_NA;
+      ++ctx->Map.pcs[ 1 ]
+    ) {
+      for (
+        ctx->Map.pcs[ 2 ] = RtemsTimerReqServerFireWhen_Pre_Routine_Valid;
+        ctx->Map.pcs[ 2 ] < RtemsTimerReqServerFireWhen_Pre_Routine_NA;
+        ++ctx->Map.pcs[ 2 ]
+      ) {
+        for (
+          ctx->Map.pcs[ 3 ] = RtemsTimerReqServerFireWhen_Pre_WallTime_Valid;
+          ctx->Map.pcs[ 3 ] < RtemsTimerReqServerFireWhen_Pre_WallTime_NA;
+          ++ctx->Map.pcs[ 3 ]
+        ) {
+          for (
+            ctx->Map.pcs[ 4 ] = RtemsTimerReqServerFireWhen_Pre_Id_Valid;
+            ctx->Map.pcs[ 4 ] < RtemsTimerReqServerFireWhen_Pre_Id_NA;
+            ++ctx->Map.pcs[ 4 ]
+          ) {
+            for (
+              ctx->Map.pcs[ 5 ] = RtemsTimerReqServerFireWhen_Pre_Context_None;
+              ctx->Map.pcs[ 5 ] < RtemsTimerReqServerFireWhen_Pre_Context_NA;
+              ++ctx->Map.pcs[ 5 ]
+            ) {
+              for (
+                ctx->Map.pcs[ 6 ] = RtemsTimerReqServerFireWhen_Pre_Clock_None;
+                ctx->Map.pcs[ 6 ] < RtemsTimerReqServerFireWhen_Pre_Clock_NA;
+                ++ctx->Map.pcs[ 6 ]
+              ) {
+                for (
+                  ctx->Map.pcs[ 7 ] = RtemsTimerReqServerFireWhen_Pre_State_Inactive;
+                  ctx->Map.pcs[ 7 ] < RtemsTimerReqServerFireWhen_Pre_State_NA;
+                  ++ctx->Map.pcs[ 7 ]
+                ) {
+                  ctx->Map.entry = RtemsTimerReqServerFireWhen_PopEntry( ctx );
+
+                  if ( ctx->Map.entry.Skip ) {
+                    continue;
+                  }
+
+                  RtemsTimerReqServerFireWhen_Prepare( ctx );
+                  RtemsTimerReqServerFireWhen_TestVariant( ctx );
+                  RtemsTimerReqServerFireWhen_Cleanup( ctx );
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+/** @} */
diff --git a/testsuites/validation/tc-timer.c b/testsuites/validation/tc-timer.c
new file mode 100644
index 0000000000..a7a25222bb
--- /dev/null
+++ b/testsuites/validation/tc-timer.c
@@ -0,0 +1,208 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseRtemsTimerValTimer
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <rtems/score/atomic.h>
+
+#include "ts-config.h"
+#include "tx-support.h"
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseRtemsTimerValTimer spec:/rtems/timer/val/timer
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @brief Tests general timer behaviour.
+ *
+ * This test case performs the following actions:
+ *
+ * - Create a couple of timers.
+ *
+ *   - Schedule some timers at the same time point.
+ *
+ *   - Fire the timers and check that they fired in the expected order.
+ *
+ *   - Clean up all used resources.
+ *
+ * @{
+ */
+
+/**
+ * @brief Test context for spec:/rtems/timer/val/timer test case.
+ */
+typedef struct {
+  /**
+   * @brief This member contains the timer identifiers.
+   */
+  rtems_id timer_ids[ TEST_MAXIMUM_TIMERS ];
+
+  /**
+   * @brief This member contains the counter.
+   */
+  Atomic_Uint counter;
+
+  /**
+   * @brief This member contains the timer counter snapshots.
+   */
+  unsigned int counter_snapshots[ TEST_MAXIMUM_TIMERS ];
+} RtemsTimerValTimer_Context;
+
+static RtemsTimerValTimer_Context
+  RtemsTimerValTimer_Instance;
+
+typedef RtemsTimerValTimer_Context Context;
+
+static void Timer( rtems_id timer, void *arg )
+{
+  Context      *ctx;
+  unsigned int *counter;
+
+  ctx = T_fixture_context();
+  counter = arg;
+  *counter = _Atomic_Fetch_add_uint(
+    &ctx->counter,
+    1,
+    ATOMIC_ORDER_RELAXED
+  ) + 1;
+}
+
+static void Fire( Context *ctx, size_t i, rtems_interval ticks )
+{
+  rtems_status_code sc;
+
+  ctx->counter_snapshots[ i ] = 0;
+  sc = rtems_timer_fire_after(
+    ctx->timer_ids[ i ],
+    ticks,
+    Timer,
+    &ctx->counter_snapshots[ i ]
+  );
+  T_rsc_success( sc );
+}
+
+static T_fixture RtemsTimerValTimer_Fixture = {
+  .setup = NULL,
+  .stop = NULL,
+  .teardown = NULL,
+  .scope = NULL,
+  .initial_context = &RtemsTimerValTimer_Instance
+};
+
+/**
+ * @brief Create a couple of timers.
+ */
+static void RtemsTimerValTimer_Action_0( RtemsTimerValTimer_Context *ctx )
+{
+  rtems_status_code sc;
+  size_t            i;
+
+  T_assert_eq_sz( TEST_MAXIMUM_TIMERS, 10 );
+
+  _Atomic_Init_uint( &ctx->counter, 0 );
+
+  for ( i = 0; i < TEST_MAXIMUM_TIMERS ; ++i ) {
+    sc = rtems_timer_create(
+      rtems_build_name( 'T', 'E', 'S', 'T' ),
+      &ctx->timer_ids[ i ]
+    );
+    T_rsc_success( sc );
+  }
+
+  /*
+   * Schedule some timers at the same time point.
+   */
+  Fire( ctx, 3, 2 );
+  Fire( ctx, 0, 1 );
+  Fire( ctx, 7, 3 );
+  Fire( ctx, 4, 2 );
+  Fire( ctx, 5, 2 );
+  Fire( ctx, 8, 3 );
+  Fire( ctx, 9, 3 );
+  Fire( ctx, 1, 1 );
+  Fire( ctx, 2, 1 );
+  Fire( ctx, 6, 2 );
+
+  /*
+   * Fire the timers and check that they fired in the expected order.
+   */
+  FinalClockTick();
+
+  for ( i = 0; i < TEST_MAXIMUM_TIMERS ; ++i ) {
+    T_eq_sz( ctx->counter_snapshots[ i ], i + 1 );
+  }
+
+  /*
+   * Clean up all used resources.
+   */
+  for ( i = 0; i < TEST_MAXIMUM_TIMERS ; ++i ) {
+    sc = rtems_timer_delete( ctx->timer_ids[ i ] );
+    T_rsc_success( sc );
+  }
+}
+
+/**
+ * @fn void T_case_body_RtemsTimerValTimer( void )
+ */
+T_TEST_CASE_FIXTURE( RtemsTimerValTimer, &RtemsTimerValTimer_Fixture )
+{
+  RtemsTimerValTimer_Context *ctx;
+
+  ctx = T_fixture_context();
+
+  RtemsTimerValTimer_Action_0( ctx );
+}
+
+/** @} */