def test_signal_dispatch_with_correct_arguments():
test_signal = Signal(arguments=['number'])
test_signal.connect(
sender=Sender, receiver=coroutine_receiver_double_multiplier)
task = test_signal.dispatch(sender=Sender, number=2)[0]
loop = asyncio.get_event_loop()
result = loop.run_until_complete(task)
assert result == 4
loop.close()
def test_signal_has_receivers_when_is_true():
test_signal = Signal()
test_signal.connect(sender=Sender, receiver=coroutine_receiver)
assert test_signal.has_receivers(sender=Sender) is True
def test_signal_has_receivers_when_is_false():
test_signal = Signal()
assert test_signal.has_receivers(sender=Sender) is False
def test_when_signal_connect_sender_is_a_function():
test_signal = Signal()
test_signal.connect(sender=sender_function, receiver=coroutine_receiver)
key = get_sender_key(sender_function)
assert coroutine_receiver in test_signal.receivers[key]
def test_signal_connect_when_is_coroutine():
test_signal = Signal()
test_signal.connect(sender=Sender, receiver=coroutine_receiver)
key = get_sender_key(Sender)
assert coroutine_receiver in test_signal.receivers[key]
def test_signal_connect_when_isnt_coroutine():
with pytest.raises(ArgumentError):
test_signal = Signal()
test_signal.connect(sender=Sender, receiver=not_coroutine_receiver)
def test_signal_dispatch_with_wrong_arguments():
with pytest.raises(ArgumentError):
test_signal = Signal()
test_signal.dispatch(sender=Sender, some_arg=True)