def test_path_hashing(self):
g = Graph()
gh = Graph.Hydrator(g)
alice = gh.hydrate_node(1, {"Person"}, {"name": "Alice", "age": 33})
bob = gh.hydrate_node(2, {"Person"}, {"name": "Bob", "age": 44})
carol = gh.hydrate_node(3, {"Person"}, {"name": "Carol", "age": 55})
alice_knows_bob = gh.hydrate_relationship(1, alice.id, bob.id, "KNOWS",
{"since": 1999})
carol_dislikes_bob = gh.hydrate_relationship(2, carol.id, bob.id,
"DISLIKES", {})
path_1 = Path(alice, alice_knows_bob, carol_dislikes_bob)
path_2 = Path(alice, alice_knows_bob, carol_dislikes_bob)
self.assertEqual(hash(path_1), hash(path_2))
def test_path_equality():
g = Graph()
gh = Graph.Hydrator(g)
alice = gh.hydrate_node(1, {"Person"}, {"name": "Alice", "age": 33})
bob = gh.hydrate_node(2, {"Person"}, {"name": "Bob", "age": 44})
carol = gh.hydrate_node(3, {"Person"}, {"name": "Carol", "age": 55})
alice_knows_bob = gh.hydrate_relationship(1, alice.id, bob.id, "KNOWS",
{"since": 1999})
carol_dislikes_bob = gh.hydrate_relationship(2, carol.id, bob.id,
"DISLIKES", {})
path_1 = Path(alice, alice_knows_bob, carol_dislikes_bob)
path_2 = Path(alice, alice_knows_bob, carol_dislikes_bob)
assert path_1 == path_2
assert path_1 != "this is not a path"
def test_path_repr():
g = Graph()
gh = Graph.Hydrator(g)
alice = gh.hydrate_node(1, {"Person"}, {"name": "Alice"})
bob = gh.hydrate_node(2, {"Person"}, {"name": "Bob"})
carol = gh.hydrate_node(3, {"Person"}, {"name": "Carol"})
alice_knows_bob = gh.hydrate_relationship(1, alice.id, bob.id, "KNOWS",
{"since": 1999})
carol_dislikes_bob = gh.hydrate_relationship(2, carol.id, bob.id,
"DISLIKES", {})
path = Path(alice, alice_knows_bob, carol_dislikes_bob)
assert repr(
path
) == "<Path start=<Node id=1 labels=frozenset({'Person'}) properties={'name': 'Alice'}> end=<Node id=3 labels=frozenset({'Person'}) properties={'name': 'Carol'}> size=2>"
def test_can_create_path():
g = Graph()
gh = Graph.Hydrator(g)
alice = gh.hydrate_node(1, {"Person"}, {"name": "Alice", "age": 33})
bob = gh.hydrate_node(2, {"Person"}, {"name": "Bob", "age": 44})
carol = gh.hydrate_node(3, {"Person"}, {"name": "Carol", "age": 55})
alice_knows_bob = gh.hydrate_relationship(1, alice.id, bob.id, "KNOWS",
{"since": 1999})
carol_dislikes_bob = gh.hydrate_relationship(2, carol.id, bob.id,
"DISLIKES", {})
path = Path(alice, alice_knows_bob, carol_dislikes_bob)
assert isinstance(path, Path)
assert path.start_node == alice
assert path.end_node == 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]
def test_can_create_path(self):
g = Graph()
gh = Graph.Hydrator(g)
alice = gh.hydrate_node(1, {"Person"}, {"name": "Alice", "age": 33})
bob = gh.hydrate_node(2, {"Person"}, {"name": "Bob", "age": 44})
carol = gh.hydrate_node(3, {"Person"}, {"name": "Carol", "age": 55})
alice_knows_bob = gh.hydrate_relationship(1, alice.id, bob.id, "KNOWS",
{"since": 1999})
carol_dislikes_bob = gh.hydrate_relationship(2, carol.id, bob.id,
"DISLIKES", {})
path = Path(alice, alice_knows_bob, carol_dislikes_bob)
self.assertEqual(path.start_node, alice)
self.assertEqual(path.end_node, carol)
self.assertEqual(path.nodes, (alice, bob, carol))
self.assertEqual(path.relationships,
(alice_knows_bob, carol_dislikes_bob))
self.assertEqual(list(path), [alice_knows_bob, carol_dislikes_bob])
self.assertTrue(repr(path))