def test_key_expires(self):
"""``rotating_key`` produces a new key when the old key expires."""
key_iter = eventlogging.rotating_key(size=64, period=0.001)
key1 = next(key_iter)
time.sleep(0.01)
key2 = next(key_iter)
self.assertNotEqual(key1, key2)
def test_key_repeats(self):
"""``rotating_key`` yields the same key until that key expires."""
key_iter = eventlogging.rotating_key(size=64, period=60)
self.assertEqual(next(key_iter), next(key_iter))
