def test_children():
parent = Node(Node(TEST_DATA), Node(TEST_DATA))
assert len(parent.children()) == 2
parent = Node(Node(TEST_DATA), Node(TEST_DATA))
assert len(parent.children()) == 2
parent = Node(Node(Node(TEST_DATA)))
assert len(parent.children()) == 2
parent = Node(dict(docs=Node(Node(TEST_DATA))))
assert len(parent.children()) == 2
parent = Node([dict(docs=Node(Node(TEST_DATA))), Node(TEST_DATA)])
assert len(parent.children()) == 3
parent = Node(dict(docs=[Node(Node(TEST_DATA)), Node(TEST_DATA)]))
assert len(parent.children()) == 3
parent = Node("STRING")
assert (len(parent.children())) == 0
parent = Node("STRING", Node("STRING"))
assert (len(parent.children())) == 1
def test_child():
child = Node(TEST_DATA)
parent = Node(child)
children = parent.children()
assert child in children
assert len(children) == 1