diff --git a/tests/util/caches/test_descriptors.py b/tests/util/caches/test_descriptors.py
index 3f14ab503f..2516fe40f4 100644
--- a/tests/util/caches/test_descriptors.py
+++ b/tests/util/caches/test_descriptors.py
@@ -1,5 +1,6 @@
# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket Ltd
+# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -12,6 +13,7 @@
# 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 functools import partial
import logging
import mock
@@ -25,6 +27,50 @@ from tests import unittest
logger = logging.getLogger(__name__)
+class CacheTestCase(unittest.TestCase):
+ def test_invalidate_all(self):
+ cache = descriptors.Cache("testcache")
+
+ callback_record = [False, False]
+
+ def record_callback(idx):
+ callback_record[idx] = True
+
+ # add a couple of pending entries
+ d1 = defer.Deferred()
+ cache.set("key1", d1, partial(record_callback, 0))
+
+ d2 = defer.Deferred()
+ cache.set("key2", d2, partial(record_callback, 1))
+
+ # lookup should return the deferreds
+ self.assertIs(cache.get("key1"), d1)
+ self.assertIs(cache.get("key2"), d2)
+
+ # let one of the lookups complete
+ d2.callback("result2")
+ self.assertEqual(cache.get("key2"), "result2")
+
+ # now do the invalidation
+ cache.invalidate_all()
+
+ # lookup should return none
+ self.assertIsNone(cache.get("key1", None))
+ self.assertIsNone(cache.get("key2", None))
+
+ # both callbacks should have been callbacked
+ self.assertTrue(
+ callback_record[0], "Invalidation callback for key1 not called",
+ )
+ self.assertTrue(
+ callback_record[1], "Invalidation callback for key2 not called",
+ )
+
+ # letting the other lookup complete should do nothing
+ d1.callback("result1")
+ self.assertIsNone(cache.get("key1", None))
+
+
class DescriptorTestCase(unittest.TestCase):
@defer.inlineCallbacks
def test_cache(self):
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