def test_can_add_task_returns_true_when_task_can_fit_in_secondary_period_and_was_not_executed_in_this_deadline_slice(
):
tasks = [Task('T1', 30, 6), Task('T2', 20, 3), Task('T3', 120, 14)]
planner = CyclicExecutivePlanner(tasks)
planner.matrix = ExecutionMatrix(planner.hyperperiod, planner.hyperperiod,
planner.secondary_period)
assert planner.can_add_task(tasks[0], 0)
def test_can_add_task_returns_false_when_task_not_fit_in_secondary_period():
tasks = [Task('T1', 30, 6), Task('T2', 20, 3), Task('T3', 120, 14)]
planner = CyclicExecutivePlanner(tasks)
planner.matrix = ExecutionMatrix(planner.hyperperiod, planner.hyperperiod,
planner.secondary_period)
time_stamp = 15
for x in range(time_stamp):
planner.matrix.processors[0].add_time_unit()
assert not planner.can_add_task(tasks[0], time_stamp)
def test_can_add_task_returns_false_when_task_was_already_enqueued_in_this_deadline_slice(
):
tasks = [Task('T1', 30, 6), Task('T2', 20, 3), Task('T3', 120, 14)]
planner = CyclicExecutivePlanner(tasks)
planner.matrix = ExecutionMatrix(planner.hyperperiod, planner.hyperperiod,
planner.secondary_period)
planner.matrix.processors[0].add_time_unit()
planner.matrix.processors[0].set_task(tasks[0])
for x in range(tasks[0].deadline - 1):
planner.matrix.processors[0].add_time_unit()
assert not planner.can_add_task(tasks[0], planner.secondary_period + 1)