Python KeyedNode.get_root_node Examples

Example #1

    def test_RootNode_NoLoops(self):
        grandParent = KeyedNode("grand pa")
        parent = KeyedNode("pa")
        child = KeyedNode("me")
        child.set_parent(parent)
        parent.set_parent(grandParent)

        self.assertEqual(child.get_root_node(), grandParent)
        self.assertEqual(parent.get_root_node(), grandParent)
        self.assertEqual(grandParent.get_root_node(), grandParent)

Example #2

    def test_RootNode_LoopException(self):
        grandParent = KeyedNode("grand pa")
        parent = KeyedNode("pa")
        child = KeyedNode("me")
        child.set_parent(parent)
        parent.set_parent(grandParent)
        grandParent.set_parent(child)

        self.assertRaises(TreeHasLoop, lambda: child.get_root_node())
        self.assertRaises(TreeHasLoop, lambda: parent.get_root_node())
        self.assertRaises(TreeHasLoop, lambda: grandParent.get_root_node())