'Memory caches that have the TIMEOUT parameter unset will set cache
keys having the default 5 minute timeout.'

@override_settings(CACHES=DEFAULT_MEMORY_CACHES_SETTINGS)
def test_caches_with_unset_timeout_set_expiring_key(self):

    key = 'my-key'
    value = 'my-value'
    cache = caches[DEFAULT_CACHE_ALIAS]
    cache.set(key, value)
    cache_key = cache.make_key(key)
    self.assertIsNotNone(cache._expire_info[cache_key])
