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authorErik Johnston <erik@matrix.org>2016-04-06 15:44:22 +0100
committerErik Johnston <erik@matrix.org>2016-04-07 14:19:02 +0100
commitaf03ecf35223f93971596f38393c62f4694705fa (patch)
treec1bbe31639ac5ae3cfee6b21182faf033fc6b9e4 /tests/util/test_linearizer.py
parentMerge pull request #699 from matrix-org/rav/show_own_leave_event (diff)
downloadsynapse-af03ecf35223f93971596f38393c62f4694705fa.tar.xz
Deduplicate joins
Diffstat (limited to 'tests/util/test_linearizer.py')
-rw-r--r--tests/util/test_linearizer.py44
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/util/test_linearizer.py b/tests/util/test_linearizer.py
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+++ b/tests/util/test_linearizer.py
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+# -*- coding: utf-8 -*-
+# Copyright 2016 OpenMarket Ltd
+#
+# 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.
+
+
+from tests import unittest
+
+from twisted.internet import defer
+
+from synapse.util.async import Linearizer
+
+
+class LinearizerTestCase(unittest.TestCase):
+
+    @defer.inlineCallbacks
+    def test_linearizer(self):
+        linearizer = Linearizer()
+
+        key = object()
+
+        d1 = linearizer.queue(key)
+        cm1 = yield d1
+
+        d2 = linearizer.queue(key)
+        self.assertFalse(d2.called)
+
+        with cm1:
+            self.assertFalse(d2.called)
+
+        self.assertTrue(d2.called)
+
+        with (yield d2):
+            pass