def test_component_bounds_updated(self, mock_method):
""" Make sure trait listener for changing component bounds gets set up.
"""
class TestWindow(AbstractWindow):
# needed to avoid a NotImplementedError, not under test
def _redraw(self):
pass
def _get_control_size(self):
# this happens in the wild
return None
thing = Component()
TestWindow(
parent=None,
component=thing,
)
thing.bounds = [13.0, 13.0]
self.assertTrue(mock_method.called)
