def test_can_create_relationship(self):
alice = Node({"Person"}, {"name": "Alice", "age": 33})
bob = Node({"Person"}, {"name": "Bob", "age": 44})
alice_knows_bob = Relationship(alice, bob, "KNOWS", {"since": 1999})
assert alice_knows_bob.start is alice
assert alice_knows_bob.type == "KNOWS"
assert alice_knows_bob.end is bob
assert set(alice_knows_bob.keys()) == {"since"}
assert set(alice_knows_bob.values()) == {1999}
assert set(alice_knows_bob.items()) == {("since", 1999)}
assert alice_knows_bob.get("since") == 1999
assert repr(alice_knows_bob)
def test_can_hydrate_path(self):
alice = Node({"Person"}, {"name": "Alice", "age": 33})
bob = Node({"Person"}, {"name": "Bob", "age": 44})
carol = Node({"Person"}, {"name": "Carol", "age": 55})
alice_knows_bob = Relationship(alice, bob, "KNOWS", {"since": 1999})
carol_dislikes_bob = Relationship(carol, bob, "DISLIKES")
path = Path.hydrate([alice, bob, carol],
[alice_knows_bob.unbind(), carol_dislikes_bob.unbind()],
[1, 1, -2, 2])
assert path.start == alice
assert path.end == carol
assert path.nodes == (alice, bob, carol)
assert path.relationships == (alice_knows_bob, carol_dislikes_bob)
assert list(path) == [alice_knows_bob, carol_dislikes_bob]
assert repr(path)
