def setUp(self):
self.root_controller = BaseViewController()
self.child_one = BaseViewController()
self.child_two = BaseViewController()
self.child_three = BaseViewController()
self.vs = ViewState(self.root_controller)
self.root_controller.set_named_child('one', self.child_one)
self.child_one.set_named_child('two', self.child_two)
self.child_two.set_named_child('three', self.child_three)
def test_component_path_insert(self):
"""A component can be inserted directly using a path, replacing the existing stack there."""
new_component = BaseViewController()
self.child_one.set_named_child = MagicMock()
self.vs.insert_controller('page.one.four', new_component)
self.child_one.set_named_child.assert_called_with(
'four', new_component)
