[issue41772] Zipfile.testzip considers wrong password as correct

[Amir Mohamadi]

New submission from Amir Mohamadi <amiremohamadi at yahoo.com>:

Zipfile.testzip sometimes works perfectly with wrong password. refer to poc.py I've a zip file with password '76453' and when I try a wrong password with extractall:

    myzip.setpassword('10006050')
    myzip.extractall()

it raises a Bad CRC-32 exception. but when I try testzip instead of extractall:

    myzip.setpassword('10006050')
    myzip.testzip()

no exception is raised

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Added file: https://bugs.python.org/file49452/poc.py

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<https://bugs.python.org/issue41772>
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