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test_linearizer.py 1.1 KB

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  1. # -*- coding: utf-8 -*-
  2. # Copyright 2016 OpenMarket Ltd
  3. #
  4. # Licensed under the Apache License, Version 2.0 (the "License");
  5. # you may not use this file except in compliance with the License.
  6. # You may obtain a copy of the License at
  7. #
  8. # http://www.apache.org/licenses/LICENSE-2.0
  9. #
  10. # Unless required by applicable law or agreed to in writing, software
  11. # distributed under the License is distributed on an "AS IS" BASIS,
  12. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. # See the License for the specific language governing permissions and
  14. # limitations under the License.
  15. from tests import unittest
  16. from twisted.internet import defer
  17. from synapse.util.async import Linearizer
  18. class LinearizerTestCase(unittest.TestCase):
  19. @defer.inlineCallbacks
  20. def test_linearizer(self):
  21. linearizer = Linearizer()
  22. key = object()
  23. d1 = linearizer.queue(key)
  24. cm1 = yield d1
  25. d2 = linearizer.queue(key)
  26. self.assertFalse(d2.called)
  27. with cm1:
  28. self.assertFalse(d2.called)
  29. self.assertTrue(d2.called)
  30. with (yield d2):
  31. pass