def test_keys(connector):
result = connector.auto_run("RETURN 'Alice' AS name, 33 AS age")
connector.pull(result, -1)
cursor = Cursor(result)
expected = ["name", "age"]
actual = cursor.keys()
assert expected == actual
def test_records(connector):
cursor = Cursor(
connector.auto_run("UNWIND range(1, $x) AS n RETURN n, n * n AS n_sq", {"x": 3}))
expected = deque([(1, 1), (2, 4), (3, 9)])
for actual_record in cursor:
expected_record = Record(["n", "n_sq"], expected.popleft())
assert expected_record == actual_record
def run(self, cypher, parameters=None, **kwparameters):
""" Send a Cypher query to the server for execution and return
a :py:class:`~.cypher.Cursor` for navigating its result.
:param cypher: Cypher query
:param parameters: dictionary of parameters
:returns: :py:class:`~.cypher.Cursor` object
"""
from py2neo.client import Connection
if self.closed:
raise TypeError("Cannot run query in closed transaction")
try:
hydrant = Connection.default_hydrant(self._connector.profile,
self.graph)
parameters = dict(parameters or {}, **kwparameters)
if self.ref:
result = self._connector.run(self.ref, cypher, parameters)
else:
result = self._connector.auto_run(cypher,
parameters,
graph_name=self.graph.name,
readonly=self.readonly)
return Cursor(result, hydrant)
finally:
if not self.ref:
self._closed = True
def test_stats(connector):
cursor = Cursor(connector.auto_run("CREATE ()"))
stats = cursor.stats()
assert stats["nodes_created"] == 1
def test_keys(connector):
cursor = Cursor(connector.auto_run("RETURN 'Alice' AS name, 33 AS age"))
expected = ["name", "age"]
actual = cursor.keys()
assert expected == actual
def test_stats(connector):
result = connector.auto_run("CREATE ()")
connector.pull(result, -1)
cursor = Cursor(result)
stats = cursor.stats()
assert stats["nodes_created"] == 1