def test_multi_inheritance(self):
tree = IndexTree()
tree.add("name1", ["name2", "name3"])
tree.add("name2", ["name4"])
tree.add("name3", [])
tree.add("name4", [])
names = list(tree.iternames())
assert len(names) == 4
assert names.index("name1") > names.index("name2")
assert names.index("name2") > names.index("name4")
assert names.index("name1") == 3
def test_basic(self):
tree = IndexTree()
tree.add("name1", ["name2"])
tree.add("name2", ["name3"])
tree.add("name3", None)
assert list(tree.iternames()) == ["name3", "name2", "name1"]