def test_spawn_when_at_max(self):
host = Mock(spec=Host, address='ip1')
session = self.make_session()
conn = NonCallableMagicMock(spec=Connection,
in_flight=0,
is_defunct=False,
is_closed=False)
session.cluster.connection_factory.return_value = conn
# core conns = 1, max conns = 2
session.cluster.get_max_connections_per_host.return_value = 2
pool = HostConnectionPool(host, HostDistance.LOCAL, session)
session.cluster.connection_factory.assert_called_once_with(
host.address)
pool.borrow_connection(timeout=0.01)
self.assertEqual(1, conn.in_flight)
# make this conn full
conn.in_flight = MAX_STREAM_PER_CONNECTION
# we don't care about making this borrow_connection call succeed for the
# purposes of this test, as long as it results in a new connection
# creation being scheduled
self.assertRaises(NoConnectionsAvailable, pool.borrow_connection, 0)
session.submit.assert_called_once_with(pool._create_new_connection)
def test_failed_wait_for_connection(self):
host = Mock(spec=Host, address='ip1')
session = self.make_session()
conn = NonCallableMagicMock(spec=Connection, in_flight=0, is_defunct=False, is_closed=False)
session.cluster.connection_factory.return_value = conn
pool = HostConnectionPool(host, HostDistance.LOCAL, session)
session.cluster.connection_factory.assert_called_once_with(host.address)
pool.borrow_connection(timeout=0.01)
self.assertEqual(1, conn.in_flight)
conn.in_flight = MAX_STREAM_PER_CONNECTION
# we're already at the max number of requests for this connection,
# so we this should fail
self.assertRaises(NoConnectionsAvailable, pool.borrow_connection, 0)
def test_failed_wait_for_connection(self):
host = Mock(spec=Host, address='ip1')
session = self.make_session()
conn = NonCallableMagicMock(spec=Connection, in_flight=0, is_defunct=False, is_closed=False)
session.cluster.connection_factory.return_value = conn
pool = HostConnectionPool(host, HostDistance.LOCAL, session)
session.cluster.connection_factory.assert_called_once_with(host.address)
pool.borrow_connection(timeout=0.01)
self.assertEqual(1, conn.in_flight)
conn.in_flight = MAX_STREAM_PER_CONNECTION
# we're already at the max number of requests for this connection,
# so we this should fail
self.assertRaises(NoConnectionsAvailable, pool.borrow_connection, 0)
def test_spawn_when_at_max(self):
host = Mock(spec=Host, address='ip1')
session = self.make_session()
conn = NonCallableMagicMock(spec=Connection, in_flight=0, is_defunct=False, is_closed=False)
session.cluster.connection_factory.return_value = conn
# core conns = 1, max conns = 2
session.cluster.get_max_connections_per_host.return_value = 2
pool = HostConnectionPool(host, HostDistance.LOCAL, session)
session.cluster.connection_factory.assert_called_once_with(host.address)
pool.borrow_connection(timeout=0.01)
self.assertEqual(1, conn.in_flight)
# make this conn full
conn.in_flight = MAX_STREAM_PER_CONNECTION
# we don't care about making this borrow_connection call succeed for the
# purposes of this test, as long as it results in a new connection
# creation being scheduled
self.assertRaises(NoConnectionsAvailable, pool.borrow_connection, 0)
session.submit.assert_called_once_with(pool._create_new_connection)
