def test_walkable_repr(self):
a = Node("Person", name="Alice")
b = Node("Person", name="Bob")
c = Node("Person", name="Carol")
d = Node("Person", name="Dave")
ab = Relationship(a, "LOVES", b)
cb = Relationship(c, "HATES", b)
cd = Relationship(c, "KNOWS", d)
t = Walkable([a, ab, b, cb, c, cd, d])
r = repr(t)
expected = "(alice)-[:LOVES]->(bob)<-[:HATES]-(carol)-[:KNOWS]->(dave)"
assert r == expected
def test_can_concatenate_path_and_path(self):
result = (Walkable([alice, alice_knows_bob, bob]) +
Walkable([bob, carol_dislikes_bob, carol]))
assert result == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
def test_can_concatenate_path_and_relationship(self):
result = Walkable([alice, alice_knows_bob, bob]) + carol_dislikes_bob
assert result == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
def test_can_concatenate_path_and_node(self):
result = Walkable([alice, alice_knows_bob, bob]) + bob
assert result == Walkable([alice, alice_knows_bob, bob])
def test_can_concatenate_relationship_and_path(self):
result = alice_knows_bob + Walkable([bob, carol_dislikes_bob, carol])
assert result == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
def test_can_concatenate_relationship_and_node(self):
result = alice_knows_bob + bob
assert result == Walkable([alice, alice_knows_bob, bob])
def test_can_concatenate_node_and_reversed_path(self):
result = alice + Walkable([bob, alice_knows_bob, alice])
assert result == Walkable([alice, alice_knows_bob, bob])
def test_can_concatenate_node_and_path(self):
path = Walkable([alice, alice_knows_bob, bob])
result = alice + path
assert result == path
def test_can_concatenate_node_and_reversed_relationship(self):
bob_knows_alice = Relationship(bob, "KNOWS", alice)
result = alice + bob_knows_alice
assert result == Walkable([alice, bob_knows_alice, bob])
def test_can_concatenate_node_and_node(self):
result = alice + alice
assert result == Walkable([alice])
def test_slicing(self):
sequence = (alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave)
subgraph = Walkable(sequence)
assert subgraph[0] == alice_knows_bob
assert subgraph[1] == carol_dislikes_bob
assert subgraph[2] == carol_married_to_dave
assert subgraph[3] == dave_works_for_dave
assert subgraph[0:0] == Walkable([alice])
assert subgraph[0:1] == Walkable([alice, alice_knows_bob, bob])
assert subgraph[0:2] == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
assert subgraph[0:3] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave
])
assert subgraph[0:4] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave
])
assert subgraph[0:5] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave
])
assert subgraph[0:] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave
])
assert subgraph[:1] == Walkable([alice, alice_knows_bob, bob])
assert subgraph[1:1] == Walkable([bob])
assert subgraph[1:2] == Walkable([bob, carol_dislikes_bob, carol])
assert subgraph[1:3] == Walkable(
[bob, carol_dislikes_bob, carol, carol_married_to_dave, dave])
assert subgraph[1:4] == Walkable([
bob, carol_dislikes_bob, carol, carol_married_to_dave, dave,
dave_works_for_dave, dave
])
assert subgraph[1:5] == Walkable([
bob, carol_dislikes_bob, carol, carol_married_to_dave, dave,
dave_works_for_dave, dave
])
assert subgraph[1:] == Walkable([
bob, carol_dislikes_bob, carol, carol_married_to_dave, dave,
dave_works_for_dave, dave
])
assert subgraph[:2] == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
assert subgraph[2:2] == Walkable([carol])
assert subgraph[2:3] == Walkable([carol, carol_married_to_dave, dave])
assert subgraph[2:4] == Walkable(
[carol, carol_married_to_dave, dave, dave_works_for_dave, dave])
assert subgraph[2:5] == Walkable(
[carol, carol_married_to_dave, dave, dave_works_for_dave, dave])
assert subgraph[2:] == Walkable(
[carol, carol_married_to_dave, dave, dave_works_for_dave, dave])
assert subgraph[1:-1] == Walkable(
[bob, carol_dislikes_bob, carol, carol_married_to_dave, dave])
assert subgraph[-3:-1] == Walkable(
[bob, carol_dislikes_bob, carol, carol_married_to_dave, dave])
def test_inequality(self):
other_subgraph = Walkable(
[alice, alice_likes_carol, carol, carol_dislikes_bob, bob])
assert self.walkable != other_subgraph
assert hash(self.walkable) != hash(other_subgraph)
def test_equality(self):
other_subgraph = Walkable(self.sequence)
assert self.walkable == other_subgraph
assert hash(self.walkable) == hash(other_subgraph)
class WalkableTestCase(TestCase):
sequence = (alice, alice_knows_bob, bob, carol_dislikes_bob, carol)
walkable = Walkable(sequence)
def test_nodes(self):
nodes = self.walkable.nodes()
assert isinstance(nodes, tuple)
assert nodes == (alice, bob, carol)
def test_relationships(self):
relationships = self.walkable.relationships()
assert isinstance(relationships, tuple)
assert relationships == (alice_knows_bob, carol_dislikes_bob)
def test_length(self):
assert len(self.walkable) == 2
def test_order(self):
assert order(self.walkable) == 3
def test_size(self):
assert size(self.walkable) == 2
def test_equality(self):
other_subgraph = Walkable(self.sequence)
assert self.walkable == other_subgraph
assert hash(self.walkable) == hash(other_subgraph)
def test_inequality(self):
other_subgraph = Walkable(
[alice, alice_likes_carol, carol, carol_dislikes_bob, bob])
assert self.walkable != other_subgraph
assert hash(self.walkable) != hash(other_subgraph)
def test_inequality_with_other_types(self):
assert self.walkable != "this is not a graph"
def test_iteration(self):
assert tuple(iter(self.walkable)) == (alice_knows_bob,
carol_dislikes_bob)
def test_slicing(self):
sequence = (alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave)
subgraph = Walkable(sequence)
assert subgraph[0] == alice_knows_bob
assert subgraph[1] == carol_dislikes_bob
assert subgraph[2] == carol_married_to_dave
assert subgraph[3] == dave_works_for_dave
assert subgraph[0:0] == Walkable([alice])
assert subgraph[0:1] == Walkable([alice, alice_knows_bob, bob])
assert subgraph[0:2] == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
assert subgraph[0:3] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave
])
assert subgraph[0:4] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave
])
assert subgraph[0:5] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave
])
assert subgraph[0:] == Walkable([
alice, alice_knows_bob, bob, carol_dislikes_bob, carol,
carol_married_to_dave, dave, dave_works_for_dave, dave
])
assert subgraph[:1] == Walkable([alice, alice_knows_bob, bob])
assert subgraph[1:1] == Walkable([bob])
assert subgraph[1:2] == Walkable([bob, carol_dislikes_bob, carol])
assert subgraph[1:3] == Walkable(
[bob, carol_dislikes_bob, carol, carol_married_to_dave, dave])
assert subgraph[1:4] == Walkable([
bob, carol_dislikes_bob, carol, carol_married_to_dave, dave,
dave_works_for_dave, dave
])
assert subgraph[1:5] == Walkable([
bob, carol_dislikes_bob, carol, carol_married_to_dave, dave,
dave_works_for_dave, dave
])
assert subgraph[1:] == Walkable([
bob, carol_dislikes_bob, carol, carol_married_to_dave, dave,
dave_works_for_dave, dave
])
assert subgraph[:2] == Walkable(
[alice, alice_knows_bob, bob, carol_dislikes_bob, carol])
assert subgraph[2:2] == Walkable([carol])
assert subgraph[2:3] == Walkable([carol, carol_married_to_dave, dave])
assert subgraph[2:4] == Walkable(
[carol, carol_married_to_dave, dave, dave_works_for_dave, dave])
assert subgraph[2:5] == Walkable(
[carol, carol_married_to_dave, dave, dave_works_for_dave, dave])
assert subgraph[2:] == Walkable(
[carol, carol_married_to_dave, dave, dave_works_for_dave, dave])
assert subgraph[1:-1] == Walkable(
[bob, carol_dislikes_bob, carol, carol_married_to_dave, dave])
assert subgraph[-3:-1] == Walkable(
[bob, carol_dislikes_bob, carol, carol_married_to_dave, dave])