120 lines
3.9 KiB
Python
120 lines
3.9 KiB
Python
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"""
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Unit tests for django.core.cache
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If you don't have memcached running on localhost port 11211, the memcached tests
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will fail.
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"""
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from django.core import cache
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import unittest
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import time
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# functions/classes for complex data type tests
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def f():
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return 42
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class C:
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def m(n):
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return 24
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class CacheBackendsTest(unittest.TestCase):
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def testBackends(self):
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sc = cache.get_cache('simple://')
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mc = cache.get_cache('memcached://127.0.0.1:11211/')
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self.failUnless(isinstance(sc, cache._SimpleCache))
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self.failUnless(isinstance(mc, cache._MemcachedCache))
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def testInvalidBackends(self):
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self.assertRaises(cache.InvalidCacheBackendError, cache.get_cache, 'nothing://foo/')
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self.assertRaises(cache.InvalidCacheBackendError, cache.get_cache, 'not a uri')
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def testDefaultTimeouts(self):
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sc = cache.get_cache('simple:///?timeout=15')
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mc = cache.get_cache('memcached://127.0.0.1:11211/?timeout=15')
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self.assertEquals(sc.default_timeout, 15)
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self.assertEquals(sc.default_timeout, 15)
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class SimpleCacheTest(unittest.TestCase):
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def setUp(self):
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self.cache = cache.get_cache('simple://')
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def testGetSet(self):
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self.cache.set('key', 'value')
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self.assertEqual(self.cache.get('key'), 'value')
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def testNonExistantKeys(self):
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self.assertEqual(self.cache.get('does not exist'), None)
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self.assertEqual(self.cache.get('does not exist', 'bang!'), 'bang!')
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def testGetMany(self):
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self.cache.set('a', 'a')
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self.cache.set('b', 'b')
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self.cache.set('c', 'c')
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self.cache.set('d', 'd')
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self.assertEqual(self.cache.get_many(['a', 'c', 'd']), {'a' : 'a', 'c' : 'c', 'd' : 'd'})
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self.assertEqual(self.cache.get_many(['a', 'b', 'e']), {'a' : 'a', 'b' : 'b'})
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def testDelete(self):
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self.cache.set('key1', 'spam')
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self.cache.set('key2', 'eggs')
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self.assertEqual(self.cache.get('key1'), 'spam')
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self.cache.delete('key1')
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self.assertEqual(self.cache.get('key1'), None)
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self.assertEqual(self.cache.get('key2'), 'eggs')
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def testHasKey(self):
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self.cache.set('hello', 'goodbye')
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self.assertEqual(self.cache.has_key('hello'), True)
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self.assertEqual(self.cache.has_key('goodbye'), False)
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def testDataTypes(self):
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items = {
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'string' : 'this is a string',
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'int' : 42,
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'list' : [1, 2, 3, 4],
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'tuple' : (1, 2, 3, 4),
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'dict' : {'A': 1, 'B' : 2},
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'function' : f,
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'class' : C,
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}
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for (key, value) in items.items():
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self.cache.set(key, value)
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self.assertEqual(self.cache.get(key), value)
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def testExpiration(self):
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self.cache.set('expire', 'very quickly', 1)
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time.sleep(2)
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self.assertEqual(self.cache.get('expire'), None)
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def testCull(self):
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c = cache.get_cache('simple://?max_entries=9&cull_frequency=3')
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for i in range(10):
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c.set('culltest%i' % i, i)
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n = 0
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for i in range(10):
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if c.get('culltest%i' % i):
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n += 1
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self.assertEqual(n, 6)
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def testCullAll(self):
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c = cache.get_cache('simple://?max_entries=9&cull_frequency=0')
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for i in range(10):
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c.set('cullalltest%i' % i, i)
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for i in range(10):
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self.assertEqual(self.cache.get('cullalltest%i' % i), None)
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class MemcachedCacheTest(SimpleCacheTest):
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def setUp(self):
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self.cache = cache.get_cache('memcached://127.0.0.1:11211/')
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testCull = testCullAll = lambda s: None
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def tests():
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s = unittest.TestLoader().loadTestsFromName(__name__)
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unittest.TextTestRunner(verbosity=0).run(s)
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if __name__ == "__main__":
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tests()
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