Function check

Lib/test/test_sort.py:10–40

(tag, expected, raw, compare=None)

def check(tag, expected, raw, compare=None):
    global nerrors

    if verbose:
        print("    checking", tag)

    orig = raw[:]   # save input in case of error
    if compare:
        raw.sort(key=cmp_to_key(compare))
    else:
        raw.sort()

    if len(expected) != len(raw):
        print("error in", tag)
        print("length mismatch;", len(expected), len(raw))
        print(expected)
        print(orig)
        print(raw)
        nerrors += 1
        return

    for i, good in enumerate(expected):
        maybe = raw[i]
        if good is not maybe:
            print("error in", tag)
            print("out of order at index", i, good, maybe)
            print(expected)
            print(orig)
            print(raw)
            nerrors += 1
            return

class TestBase(unittest.TestCase):
    def testStressfully(self):