test_caching.py 文件源码

def test_memoize():
    """Test Caching with no Time-To-Live (TTL)."""
    global x
    for fn in memoize_fns:
        x = 0
        assert_eq(4, fn(1))
        assert_eq(1, x)

        assert_eq(8, fn(2, 4))
        assert_eq(2, x)
        # should not result in another call
        assert_eq(8, fn(2, z=4))
        assert_eq(2, x)
        assert_eq(8, fn(y=2, z=4))
        assert_eq(2, x)

        fn.clear_cache()
        assert_eq(4, fn(1))
        assert_eq(3, x)