Function test_check_tokenize

dask/tests/test_tokenize.py:83–111

()

def test_check_tokenize():
    # idempotent and deterministic
    check_tokenize(123)
    # returns tokenized value
    assert tokenize(123) == check_tokenize(123)

    # idempotent, but not deterministic
    class A:
        def __init__(self):
            self.tok = random.random()

        def __reduce__(self):
            return A, ()

        def __dask_tokenize__(self):
            return self.tok

    a = A()
    with pytest.raises(AssertionError):
        check_tokenize(a)

    # Not idempotent
    class B:
        def __dask_tokenize__(self):
            return random.random()

    b = B()
    with pytest.raises(AssertionError):
        check_tokenize(b)


def test_tokenize():