Files
deb-python-cassandra-driver/tests/unit/test_cluster_task_scheduler.py
2016-02-23 12:36:25 -06:00

39 lines
1.3 KiB
Python

# Copyright 2013-2016 DataStax, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
try:
import unittest2 as unittest
except ImportError:
import unittest # noqa
from mock import patch
from cassandra.cluster import _Scheduler
class SchedulerTest(unittest.TestCase):
# TODO: this suite could be expanded; for now just adding a test covering a ticket
@patch('time.time', return_value=3) # always queue at same time
@patch('cassandra.cluster._Scheduler.run') # don't actually run the thread
def test_event_delay_timing(self, *args):
"""
Schedule something with a time collision to make sure the heap comparison works
PYTHON-473
"""
sched = _Scheduler(None)
sched.schedule(0, lambda: None)
sched.schedule(0, lambda: None) # pre-473: "TypeError: unorderable types: function() < function()"t