linux-kernel - Re: [PATCH] kunit: tool: misc fixes (unused vars, imports, leaked files)

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Date:   Wed, 29 Sep 2021 08:33:47 +0800
From:   David Gow <davidgow@...gle.com>
To:     Daniel Latypov <dlatypov@...gle.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        KUnit Development <kunit-dev@...glegroups.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH] kunit: tool: misc fixes (unused vars, imports, leaked files)

On Wed, Sep 29, 2021 at 6:11 AM Daniel Latypov <dlatypov@...gle.com> wrote:
>
> Drop some variables in unit tests that were unused and/or add assertions
> based on them.
>
> For ExitStack, it was imported, but the `es` variable wasn't used so it
> didn't do anything, and we were leaking the file objects.
> Refactor it to just use nested `with` statements to properly close them.
>
> And drop the direct use of .close() on file objects in the kunit tool
> unit test, as these can be leaked if test assertions fail.

To clarify for a python novice: this is referring to using "with" so
that the file isn't leaked if the assertion fails, rather than
suggesting that leaks are okay for failing tests, right?

> Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
> ---

These all seem sensible to me. Thanks for cleaning this up!

Reviewed-by: David Gow <davidgow@...gle.com>

-- David