thirdparty/google_appengine/lib/django/tests/regressiontests/cache/tests.py
author Todd Larsen <tlarsen@google.com>
Fri, 26 Sep 2008 19:47:07 +0000
changeset 204 7075c27170f2
parent 109 620f9b141567
permissions -rwxr-xr-x
Add ModelWithFieldAttributes *before* PolyModel, so that everything does not become a "ModelWithFieldAttributes" in the Datastore. The way PolyModel works, each Model class hierarchy is stored in the Datastore as the class that directly inherited from PolyModel. So, we do not want to insert ModelWithFieldAttributes *after* PolyModel by inheriting *from* PolyModel, or everything would just be a ModelWithFieldAttributes in the Datastore, instead of Person, Work, Group, etc.
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# Unit tests for cache framework
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# Uses whatever cache backend is set in the test settings file.
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from django.core.cache import cache
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import time, unittest
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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 Cache(unittest.TestCase):
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    def test_simple(self):
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        # simple set/get
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        cache.set("key", "value")
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        self.assertEqual(cache.get("key"), "value")
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    def test_non_existent(self):
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        # get with non-existent keys
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        self.assertEqual(cache.get("does not exist"), None)
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        self.assertEqual(cache.get("does not exist", "bang!"), "bang!")
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    def test_get_many(self):
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        # get_many
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        cache.set('a', 'a')
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        cache.set('b', 'b')
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        cache.set('c', 'c')
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        cache.set('d', 'd')
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        self.assertEqual(cache.get_many(['a', 'c', 'd']), {'a' : 'a', 'c' : 'c', 'd' : 'd'})
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        self.assertEqual(cache.get_many(['a', 'b', 'e']), {'a' : 'a', 'b' : 'b'})
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    def test_delete(self):
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        # delete
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        cache.set("key1", "spam")
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        cache.set("key2", "eggs")
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        self.assertEqual(cache.get("key1"), "spam")
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        cache.delete("key1")
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        self.assertEqual(cache.get("key1"), None)
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        self.assertEqual(cache.get("key2"), "eggs")
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    def test_has_key(self):
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        # has_key
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        cache.set("hello", "goodbye")
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        self.assertEqual(cache.has_key("hello"), True)
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        self.assertEqual(cache.has_key("goodbye"), False)
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    def test_data_types(self):
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        # test data types
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        stuff = {
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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 stuff.items():
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            cache.set(key, value)
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            self.assertEqual(cache.get(key), value)
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    def test_expiration(self):
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        # expiration
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        cache.set('expire', 'very quickly', 1)
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        time.sleep(2)
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        self.assertEqual(cache.get("expire"), None)
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if __name__ == '__main__':
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    unittest.main()