diff options
Diffstat (limited to 'repoze/lru/tests.py')
| -rwxr-xr-x | repoze/lru/tests.py | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/repoze/lru/tests.py b/repoze/lru/tests.py index a6572fb..bac2407 100755 --- a/repoze/lru/tests.py +++ b/repoze/lru/tests.py @@ -266,7 +266,7 @@ class LRUCacheTests(unittest.TestCase): class ExpiringLRUCacheTests(LRUCacheTests): def _getTargetClass(self): - from repoze.lru import LRUCache + from repoze.lru import ExpiringLRUCache return ExpiringLRUCache def _makeOne(self, size, default_timeout=None): @@ -455,8 +455,8 @@ class DecoratorTests(unittest.TestCase): from repoze.lru import lru_cache return lru_cache - def _makeOne(self, maxsize, cache): - return self._getTargetClass()(maxsize, cache) + def _makeOne(self, maxsize, cache, timeout=None): + return self._getTargetClass()(maxsize, timeout=timeout, cache=cache) def test_ctor_nocache(self): decorator = self._makeOne(10, None) @@ -492,6 +492,34 @@ class DecoratorTests(unittest.TestCase): self.assertEqual(result, (3, 4, 5)) self.assertEqual(len(cache), 1) + def test_expiry(self): + """When timeout is given, decorator must eventually forget entries""" + @self._makeOne(1, None, timeout=0.1) + def sleep_a_bit(param): + time.sleep(0.1) + return 2 * param + + # First call must take at least 0.1 seconds + start = time.time() + result1 = sleep_a_bit("hello") + stop = time.time() + self.assertEqual(result1, 2 * "hello") + self.assertGreater(stop - start, 0.1) + + # Second call must take less than 0.1 seconds. + start = time.time() + result2 = sleep_a_bit("hello") + stop = time.time() + self.assertEqual(result2, 2 * "hello") + self.assertLess(stop - start, 0.1) + + time.sleep(0.1) + # This one must calculate again and take at least 0.1 seconds + start = time.time() + result3 = sleep_a_bit("hello") + stop = time.time() + self.assertEqual(result3, 2 * "hello") + self.assertGreater(stop - start, 0.1) class DummyLRUCache(dict): def put(self, k, v): |