def test_invalid_tree(self):
""" Raise exception when tree is invalid """
scene = GDScene()
scene.add_node("RootNode")
scene.add_node("Child", parent="Missing")
self.assertRaises(TreeMutationException,
lambda: scene.get_node("Child"))
def test_get_node(self):
""" Test for get_node() """
scene = GDScene()
scene.add_node("RootNode")
scene.add_node("Child", parent=".")
child = scene.add_node("Child2", parent="Child")
node = scene.get_node("Child/Child2")
self.assertEqual(node, child)
def test_get_node_none(self):
"""get_node() works with no nodes"""
scene = GDScene()
n = scene.get_node()
self.assertIsNone(n)
def test_get_missing_node(self):
""" get_node on missing node should return None """
scene = GDScene()
scene.add_node("RootNode")
node = scene.get_node("Foo/Bar/Baz")
self.assertIsNone(node)
def test_missing_root(self):
""" Raise exception when GDScene is inherited but missing project_root """
scene = GDScene()
scene.add_ext_node("Root", 1)
self.assertRaises(RuntimeError, lambda: scene.get_node("Root"))
