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Add a unit test for tasks.c (#867)

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* Add a unit test for tasks.c

This test simulates the scenario when a task with priority higher than
the currently executing task is unblocked as a result of the
xTaskIncrementTick call.

This is needed to fix the coverage drop in PR https://github.com/FreeRTOS/FreeRTOS-Kernel/pull/568.

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

* Add description for the test

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

* Add doc for another test

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Gaurav-Aggarwal-AWS 2022-11-04 00:18:53 +05:30 • committed by GitHub
parent 4f87f485d5
commit aa316fc1b4
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1 changed files with 51 additions and 0 deletions
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FreeRTOS/Test/CMock/tasks/tasks_1_utest.c
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@ -2652,6 +2652,10 @@ void test_xTaskIncrementTick_success_update_next_unblock( void )
TEST_ASSERT_EQUAL( xTickCount + 4, xNextTaskUnblockTime ); TEST_ASSERT_EQUAL( xTickCount + 4, xNextTaskUnblockTime );
} }
/* Tests the scenario when a task with priority equal to the
* currently executing task is unblocked as a result of the
* xTaskIncrementTick call. Also, xPendedTicks is set to
* non-zero to ensure that tick hook is not called. */
void test_xTaskIncrementTick_success_unblock_tasks( void ) void test_xTaskIncrementTick_success_unblock_tasks( void )
{ {
BaseType_t ret_task_incrementtick; BaseType_t ret_task_incrementtick;
@ -2693,6 +2697,10 @@ void test_xTaskIncrementTick_success_unblock_tasks( void )
TEST_ASSERT_EQUAL( portMAX_DELAY, xNextTaskUnblockTime ); TEST_ASSERT_EQUAL( portMAX_DELAY, xNextTaskUnblockTime );
} }
/* Tests the scenario when a task with priority equal to the
* currently executing task is unblocked as a result of the
* xTaskIncrementTick call. Also, xPendedTicks is set to 0 to
* ensure that tick hook is called. */
void test_xTaskIncrementTick_success_unblock_tasks2( void ) void test_xTaskIncrementTick_success_unblock_tasks2( void )
{ {
BaseType_t ret_task_incrementtick; BaseType_t ret_task_incrementtick;
@ -2735,6 +2743,49 @@ void test_xTaskIncrementTick_success_unblock_tasks2( void )
ASSERT_APP_TICK_HOOK_CALLED(); ASSERT_APP_TICK_HOOK_CALLED();
TEST_ASSERT_EQUAL( portMAX_DELAY, xNextTaskUnblockTime ); TEST_ASSERT_EQUAL( portMAX_DELAY, xNextTaskUnblockTime );
} }
/* Tests the scenario when a task with priority higher than the
* currently executing task is unblocked as a result of the
* xTaskIncrementTick call. Also, xPendedTicks is set to
* non-zero to ensure that tick hook is not called. */
void test_xTaskIncrementTick_success_unblock_tasks3( void )
{
BaseType_t ret_task_incrementtick;
TaskHandle_t task_handle;
/* Setup. */
create_task_priority = 4;
task_handle = create_task();
block_task( task_handle );
create_task_priority = 3;
( void ) create_task();
ptcb = task_handle;
xPendedTicks = 3;
xTickCount = 50;
xNextTaskUnblockTime = 49; /* Task 2 is due unblocking. */
uxSchedulerSuspended = pdFALSE;
/* Expectations. */
listLIST_IS_EMPTY_ExpectAndReturn( pxDelayedTaskList, pdFALSE );
listGET_OWNER_OF_HEAD_ENTRY_ExpectAndReturn( pxDelayedTaskList, task_handle );
listGET_LIST_ITEM_VALUE_ExpectAndReturn( &task_handle->xStateListItem,
xTickCount - 5 );
listREMOVE_ITEM_Expect( &( task_handle->xStateListItem ) );
listLIST_ITEM_CONTAINER_ExpectAndReturn( &task_handle->xEventListItem, NULL );
listINSERT_END_Expect( &pxReadyTasksLists[ task_handle->uxPriority ],
&task_handle->xStateListItem );
listLIST_IS_EMPTY_ExpectAndReturn( pxDelayedTaskList, pdTRUE );
listCURRENT_LIST_LENGTH_ExpectAndReturn( &pxReadyTasksLists[ task_handle->uxPriority ], 1 );
/* API Call */
ret_task_incrementtick = xTaskIncrementTick();
/* Validations */
TEST_ASSERT_EQUAL( pdTRUE, ret_task_incrementtick );
ASSERT_APP_TICK_HOOK_NOT_CALLED();
TEST_ASSERT_EQUAL( portMAX_DELAY, xNextTaskUnblockTime );
}
/* testing INCLUDE_xTaskAbortDelay */ /* testing INCLUDE_xTaskAbortDelay */
void test_xTaskAbortDelay_fail_current_task( void ) void test_xTaskAbortDelay_fail_current_task( void )
{ {