Function test_all_slices

extra_tests/snippets/builtin_slice.py:170–202

test all possible slices except big number

()

def test_all_slices():
    """
    test all possible slices except big number
    """

    mod = __import__("cpython_generated_slices")

    ll = mod.LL
    start = mod.START
    end = mod.END
    step = mod.STEP
    slices_res = mod.SLICES_RES

    count = 0
    failures = []
    for s in start:
        for e in end:
            for t in step:
                lhs = ll[s:e:t]
                try:
                    assert lhs == slices_res[count]
                except AssertionError:
                    failures.append(
                        "start: {} ,stop: {}, step {}. Expected: {}, found: {}".format(
                            s, e, t, lhs, slices_res[count]
                        )
                    )
                count += 1

    if failures:
        for f in failures:
            print(f)
        print(len(failures), "slices failed")


test_all_slices()