def test_can_hydrate_path(self):
from neo4j.v1.types.graph import hydrate_path, _put_unbound_relationship
g = Graph()
alice = g.put_node(1, {"Person"}, {"name": "Alice", "age": 33})
bob = g.put_node(2, {"Person"}, {"name": "Bob", "age": 44})
carol = g.put_node(3, {"Person"}, {"name": "Carol", "age": 55})
r = [
_put_unbound_relationship(g, 1, "KNOWS", {"since": 1999}),
_put_unbound_relationship(g, 2, "DISLIKES")
]
path = hydrate_path([alice, bob, carol], r, [1, 1, -2, 2])
self.assertEqual(path.start_node, alice)
self.assertEqual(path.end_node, carol)
self.assertEqual(path.nodes, (alice, bob, carol))
expected_alice_knows_bob = g.put_relationship(1, alice, bob, "KNOWS",
{"since": 1999})
expected_carol_dislikes_bob = g.put_relationship(
2, carol, bob, "DISLIKES")
self.assertEqual(
path.relationships,
(expected_alice_knows_bob, expected_carol_dislikes_bob))
self.assertEqual(
list(path),
[expected_alice_knows_bob, expected_carol_dislikes_bob])
self.assertTrue(repr(path))
def test_null_properties(self):
g = Graph()
stuff = g.put_node(1, (), good=["puppies", "kittens"], bad=None)
self.assertEqual(set(stuff.keys()), {"good"})
self.assertEqual(stuff.get("good"), ["puppies", "kittens"])
self.assertIsNone(stuff.get("bad"))
self.assertEqual(len(stuff), 1)
self.assertEqual(stuff["good"], ["puppies", "kittens"])
self.assertIsNone(stuff["bad"])
self.assertIn("good", stuff)
self.assertNotIn("bad", stuff)
def test_path_hashing(self):
g = Graph()
alice = g.put_node(1, {"Person"}, {"name": "Alice", "age": 33})
bob = g.put_node(2, {"Person"}, {"name": "Bob", "age": 44})
carol = g.put_node(3, {"Person"}, {"name": "Carol", "age": 55})
alice_knows_bob = g.put_relationship(1, alice, bob, "KNOWS",
{"since": 1999})
carol_dislikes_bob = g.put_relationship(2, carol, bob, "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_can_create_node(self):
g = Graph()
alice = g.put_node(1, {"Person"}, {"name": "Alice", "age": 33})
self.assertEqual(alice.labels, {"Person"})
self.assertEqual(set(alice.keys()), {"name", "age"})
self.assertEqual(set(alice.values()), {"Alice", 33})
self.assertEqual(set(alice.items()), {("name", "Alice"), ("age", 33)})
self.assertEqual(alice.get("name"), "Alice")
self.assertEqual(alice.get("age"), 33)
self.assertTrue(repr(alice))
self.assertEqual(len(alice), 2)
self.assertEqual(alice["name"], "Alice")
self.assertEqual(alice["age"], 33)
self.assertIn("name", alice)
self.assertIn("age", alice)
self.assertEqual(set(iter(alice)), {"name", "age"})
