def test_addingChildren(self):
c = Node("c", False)
a = Node("a", False)
t = Node("t", True, "cat")
c.addChild(a)
a.addChild(t)
self.assertEqual(c.children, {"a": a})
self.assertEqual(a.children, {"t": t})
def test_getting_children(self):
c = Node("c", False)
a = Node("a", False)
t = Node("t", True, "cat")
c.addChild(a)
a.addChild(t)
self.assertEqual(c.getChild("a"), a)
self.assertEqual(a.getChild("t"), t)
self.assertEqual(c.getChild("b"), Node("", False))