def test_is_queue_eventually_not_empty__returns_true_after_multiple_attempts_with_eventually_not_empty_threading_queue(
mocker,
):
q = queue.Queue()
mocked_empty = mocker.patch.object(q, "empty", autospec=True, side_effect=[True, True, True, False])
assert is_queue_eventually_not_empty(q) is True
assert mocked_empty.call_count == 4
def test_is_queue_eventually_not_empty__returns_true_with_not_empty_threading_queue__after_just_one_call(
mocker,
):
q = queue.Queue()
q.put("bob")
spied_empty = mocker.spy(q, "empty")
time.sleep(0.1) # just to be safe make sure thread is definitely populated
assert is_queue_eventually_not_empty(q) is True
assert spied_empty.call_count == 1
def test_is_queue_eventually_not_empty__returns_false_with_empty_threading_queue(
mocker,
):
q = queue.Queue()
spied_empty = mocker.spy(q, "empty")
assert (
is_queue_eventually_not_empty(q, timeout_seconds=SECONDS_TO_SLEEP_BETWEEN_CHECKING_QUEUE_SIZE * 3)
is False
)
assert spied_empty.call_count > 2
def test_is_queue_eventually_not_empty__returns_false_with_empty_threading_queue__after_kwarg_timeout_is_met(
mocker,
):
q = queue.Queue()
spied_empty = mocker.spy(q, "empty")
mocker.patch.object(
queue_utils,
"process_time",
autospec=True,
side_effect=[
0,
0.1,
0.15 - SECONDS_TO_SLEEP_BETWEEN_CHECKING_QUEUE_SIZE * 1,
0.2 - SECONDS_TO_SLEEP_BETWEEN_CHECKING_QUEUE_SIZE * 2,
0.3 - SECONDS_TO_SLEEP_BETWEEN_CHECKING_QUEUE_SIZE * 3,
],
)
assert is_queue_eventually_not_empty(q, timeout_seconds=0.25) is False
assert spied_empty.call_count == 3
def side_effect(*args, **kwargs):
assert is_queue_eventually_not_empty(error_queue) is True
return False
def test_is_queue_eventually_not_empty__returns_true_with_not_empty_multiprocessing_queue():
q = multiprocessing.Queue()
q.put("bill")
time.sleep(0.1) # just to be safe make sure thread is definitely populated
assert is_queue_eventually_not_empty(q) is True