def test_neo4j_no_nodes(self):
with pytest.warns(RuntimeWarning):
g = graphistry.cypher("MATCH (a) WHERE a.x = 123 RETURN a LIMIT 1")
assert len(g._nodes) == 0
assert len(g._edges) == 0
for col in [node_id_key, node_type_key]:
assert col in g._nodes
for col in [
start_node_id_key, end_node_id_key, relationship_id_key,
relationship_type_key
]:
assert col in g._edges
def test_neo4j_some_edges(self):
g = graphistry.cypher(
"MATCH (a)-[b]-(c) WHERE a <> c RETURN a, b, c LIMIT 1")
assert len(g._nodes) == 2
assert len(g._edges) == 1
for col in [node_id_key, node_type_key]:
assert col in g._nodes
for col in [
start_node_id_key, end_node_id_key, relationship_id_key,
relationship_type_key
]:
assert col in g._edges
def test_neo4j_ready(self):
g = graphistry.cypher(
"MATCH (a)-[b]-(c) WHERE a <> c RETURN a, b, c LIMIT 1")
assert len(g._nodes) == 2