def test_create(self, SettingProvider):
""":type SettingProvider: unittest.mock.Mock"""
mock_read_defaults = Mock()
with patch.object(SettingsHandler, 'read_defaults', mock_read_defaults):
handler = SettingsHandler.create(SimpleWidget)
self.assertEqual(handler.widget_class, SimpleWidget)
# create needs to create a SettingProvider which traverses
# the widget definition and collects all settings and read
# all settings and for widget class
SettingProvider.assert_called_once_with(SimpleWidget)
mock_read_defaults.assert_called_once_with()
def test_initialize_with_no_provider(self, SettingProvider):
""":type SettingProvider: unittest.mock.Mock"""
handler = SettingsHandler()
handler.provider = Mock(get_provider=Mock(return_value=None))
handler.widget_class = SimpleWidget
provider = Mock()
SettingProvider.return_value = provider
widget = SimpleWidget()
# initializing an undeclared provider should display a warning
with warnings.catch_warnings(record=True) as w:
handler.initialize(widget)
self.assertEqual(1, len(w))
SettingProvider.assert_called_once_with(SimpleWidget)
provider.initialize.assert_called_once_with(widget, None)