async def test_cancel_loading_does_not_error_with_no_existing_loading_task(
self):
preloader = Preloader()
preloader.running_loading_task = None
await preloader.cancel_loading_task()
assert True # Implicit pass if an error did not occur.
async def test_cancel_loading_cancels_existing_loading_task(self):
preloader = Preloader()
mock_coroutine_function = AsyncMock()
mock_old_running_loading_task = Task(mock_coroutine_function())
preloader.running_loading_task = mock_old_running_loading_task
await preloader.cancel_loading_task()
assert mock_old_running_loading_task.cancelled