def test_last_task_ended_returns_true_when_last_assigned_task_ended():
processor = Processor()
processor.add_time_unit()
t = Task('T1', 2, 2)
processor.set_task(t)
processor.add_time_unit()
assert processor.last_task_ended()
def test_add_time_unit_inserts_previous_task_when_last_task_not_ended():
processor = Processor()
processor.add_time_unit()
t = Task('T1', 2, 2)
processor.set_task(t)
processor.add_time_unit()
assert len(processor.time_units) == 2
assert processor.time_units[1] == t
def test_add_time_unit_inserts_none_when_last_task_ended():
processor = Processor()
processor.add_time_unit()
t = Task('T1', 2, 1)
processor.set_task(t)
processor.add_time_unit()
assert len(processor.time_units) == 2
assert processor.time_units[1] is None
def test_get_current_task_returns_last_time_units_element():
processor = Processor()
processor.add_time_unit()
t = Task('T1', 1, 1)
processor.set_task(t)
assert processor.get_current_task() == t
def test_set_task_set_last_time_unit_with_task_when_task_provided():
processor = Processor()
processor.add_time_unit()
t = Task('T1', 1, 1)
processor.set_task(t)
assert processor.time_units[0] == t
def test_is_fee_returns_false_when_current_task_is_not_none():
processor = Processor()
processor.add_time_unit()
processor.set_task(Task('T1', 2, 2))
assert not processor.is_free()