def test_invalid_slow_method_raises_error():
# Setting throttle_or_debounce to an invalid name should raise
# a ValueError.
event_widget = Event()
bad_name = 'this is not a valid name'
with pytest.raises(ValueError) as e:
event_widget.throttle_or_debounce = bad_name
assert bad_name in str(e)
assert 'The event rate limiting method' in str(e)
def test_setting_wait_with_debounce_set_preserves_debounce(slow_method):
# If debounce is set but wait is zero and wait is then set to something
# non-zero then throttle_or_debounce should still stay debounce.
event_widget = Event()
event_widget.throttle_or_debounce = slow_method
# Make sure wait is currently zero...
assert event_widget.wait == 0
# This shouldn't change throttle or debounce
event_widget.wait = 20
assert event_widget.throttle_or_debounce == slow_method