7 files changed, 102 insertions, 11 deletions
diff --git a/tests/util/__init__.py b/tests/util/__init__.py
index d0e9399dda..bfebb0f644 100644
--- a/tests/util/__init__.py
+++ b/tests/util/__init__.py
@@ -12,4 +12,3 @@
 # 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.
-
diff --git a/tests/util/test_dict_cache.py b/tests/util/test_dict_cache.py
index 7bbe795622..272b71034a 100644
--- a/tests/util/test_dict_cache.py
+++ b/tests/util/test_dict_cache.py
@@ -14,7 +14,6 @@
 # limitations under the License.
 
 
-from twisted.internet import defer
 from tests import unittest
 
 from synapse.util.caches.dictionary_cache import DictionaryCache
diff --git a/tests/util/test_log_context.py b/tests/util/test_log_context.py
index efa0f28bad..65a330a0e9 100644
--- a/tests/util/test_log_context.py
+++ b/tests/util/test_log_context.py
@@ -5,6 +5,7 @@ from .. import unittest
 from synapse.util.async import sleep
 from synapse.util.logcontext import LoggingContext
 
+
 class LoggingContextTestCase(unittest.TestCase):
 
     def _check_test_key(self, value):
@@ -17,15 +18,6 @@ class LoggingContextTestCase(unittest.TestCase):
             context_one.test_key = "test"
             self._check_test_key("test")
 
-    def test_chaining(self):
-        with LoggingContext() as context_one:
-            context_one.test_key = "one"
-            with LoggingContext() as context_two:
-                self._check_test_key("one")
-                context_two.test_key = "two"
-                self._check_test_key("two")
-            self._check_test_key("one")
-
     @defer.inlineCallbacks
     def test_sleep(self):
         @defer.inlineCallbacks
diff --git a/tests/util/test_lrucache.py b/tests/util/test_lrucache.py
index 2cd3d26454..bab366fb7f 100644
--- a/tests/util/test_lrucache.py
+++ b/tests/util/test_lrucache.py
@@ -19,6 +19,7 @@ from .. import unittest
 from synapse.util.caches.lrucache import LruCache
 from synapse.util.caches.treecache import TreeCache
 
+
 class LruCacheTestCase(unittest.TestCase):
 
     def test_get_set(self):
@@ -72,3 +73,9 @@ class LruCacheTestCase(unittest.TestCase):
         self.assertEquals(cache.get(("vehicles", "car")), "vroom")
         self.assertEquals(cache.get(("vehicles", "train")), "chuff")
         # Man from del_multi say "Yes".
+
+    def test_clear(self):
+        cache = LruCache(1)
+        cache["key"] = 1
+        cache.clear()
+        self.assertEquals(len(cache), 0)
diff --git a/tests/util/test_snapshot_cache.py b/tests/util/test_snapshot_cache.py
index 4ee0d49673..7e289715ba 100644
--- a/tests/util/test_snapshot_cache.py
+++ b/tests/util/test_snapshot_cache.py
@@ -19,6 +19,7 @@ from .. import unittest
 from synapse.util.caches.snapshot_cache import SnapshotCache
 from twisted.internet.defer import Deferred
 
+
 class SnapshotCacheTestCase(unittest.TestCase):
 
     def setUp(self):
diff --git a/tests/util/test_treecache.py b/tests/util/test_treecache.py
index 9946ceb3f1..7ab578a185 100644
--- a/tests/util/test_treecache.py
+++ b/tests/util/test_treecache.py
@@ -18,6 +18,7 @@ from .. import unittest
 
 from synapse.util.caches.treecache import TreeCache
 
+
 class TreeCacheTestCase(unittest.TestCase):
     def test_get_set_onelevel(self):
         cache = TreeCache()
@@ -25,6 +26,7 @@ class TreeCacheTestCase(unittest.TestCase):
         cache[("b",)] = "B"
         self.assertEquals(cache.get(("a",)), "A")
         self.assertEquals(cache.get(("b",)), "B")
+        self.assertEquals(len(cache), 2)
 
     def test_pop_onelevel(self):
         cache = TreeCache()
@@ -33,6 +35,7 @@ class TreeCacheTestCase(unittest.TestCase):
         self.assertEquals(cache.pop(("a",)), "A")
         self.assertEquals(cache.pop(("a",)), None)
         self.assertEquals(cache.get(("b",)), "B")
+        self.assertEquals(len(cache), 1)
 
     def test_get_set_twolevel(self):
         cache = TreeCache()
@@ -42,6 +45,7 @@ class TreeCacheTestCase(unittest.TestCase):
         self.assertEquals(cache.get(("a", "a")), "AA")
         self.assertEquals(cache.get(("a", "b")), "AB")
         self.assertEquals(cache.get(("b", "a")), "BA")
+        self.assertEquals(len(cache), 3)
 
     def test_pop_twolevel(self):
         cache = TreeCache()
@@ -53,6 +57,7 @@ class TreeCacheTestCase(unittest.TestCase):
         self.assertEquals(cache.get(("a", "b")), "AB")
         self.assertEquals(cache.pop(("b", "a")), "BA")
         self.assertEquals(cache.pop(("b", "a")), None)
+        self.assertEquals(len(cache), 1)
 
     def test_pop_mixedlevel(self):
         cache = TreeCache()
@@ -64,3 +69,17 @@ class TreeCacheTestCase(unittest.TestCase):
         self.assertEquals(cache.get(("a", "a")), None)
         self.assertEquals(cache.get(("a", "b")), None)
         self.assertEquals(cache.get(("b", "a")), "BA")
+        self.assertEquals(len(cache), 1)
+
+    def test_clear(self):
+        cache = TreeCache()
+        cache[("a",)] = "A"
+        cache[("b",)] = "B"
+        cache.clear()
+        self.assertEquals(len(cache), 0)
+
+    def test_contains(self):
+        cache = TreeCache()
+        cache[("a",)] = "A"
+        self.assertTrue(("a",) in cache)
+        self.assertFalse(("b",) in cache)
diff --git a/tests/util/test_wheel_timer.py b/tests/util/test_wheel_timer.py
new file mode 100644
index 0000000000..c44567e52e
--- /dev/null
+++ b/tests/util/test_wheel_timer.py
@@ -0,0 +1,74 @@
+# -*- 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 .. import unittest
+
+from synapse.util.wheel_timer import WheelTimer
+
+
+class WheelTimerTestCase(unittest.TestCase):
+    def test_single_insert_fetch(self):
+        wheel = WheelTimer(bucket_size=5)
+
+        obj = object()
+        wheel.insert(100, obj, 150)
+
+        self.assertListEqual(wheel.fetch(101), [])
+        self.assertListEqual(wheel.fetch(110), [])
+        self.assertListEqual(wheel.fetch(120), [])
+        self.assertListEqual(wheel.fetch(130), [])
+        self.assertListEqual(wheel.fetch(149), [])
+        self.assertListEqual(wheel.fetch(156), [obj])
+        self.assertListEqual(wheel.fetch(170), [])
+
+    def test_mutli_insert(self):
+        wheel = WheelTimer(bucket_size=5)
+
+        obj1 = object()
+        obj2 = object()
+        obj3 = object()
+        wheel.insert(100, obj1, 150)
+        wheel.insert(105, obj2, 130)
+        wheel.insert(106, obj3, 160)
+
+        self.assertListEqual(wheel.fetch(110), [])
+        self.assertListEqual(wheel.fetch(135), [obj2])
+        self.assertListEqual(wheel.fetch(149), [])
+        self.assertListEqual(wheel.fetch(158), [obj1])
+        self.assertListEqual(wheel.fetch(160), [])
+        self.assertListEqual(wheel.fetch(200), [obj3])
+        self.assertListEqual(wheel.fetch(210), [])
+
+    def test_insert_past(self):
+        wheel = WheelTimer(bucket_size=5)
+
+        obj = object()
+        wheel.insert(100, obj, 50)
+        self.assertListEqual(wheel.fetch(120), [obj])
+
+    def test_insert_past_mutli(self):
+        wheel = WheelTimer(bucket_size=5)
+
+        obj1 = object()
+        obj2 = object()
+        obj3 = object()
+        wheel.insert(100, obj1, 150)
+        wheel.insert(100, obj2, 140)
+        wheel.insert(100, obj3, 50)
+        self.assertListEqual(wheel.fetch(110), [obj3])
+        self.assertListEqual(wheel.fetch(120), [])
+        self.assertListEqual(wheel.fetch(147), [obj2])
+        self.assertListEqual(wheel.fetch(200), [obj1])
+        self.assertListEqual(wheel.fetch(240), [])