linux-kernel - Re: [PATCH v2] kunit: tool: Fix error messages for cases of no tests and wrong TAP header

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Date:   Thu, 1 Jul 2021 12:40:57 -0700
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     Rae Moar <rmoar@...gle.com>
Cc:     davidgow@...gle.com, dlatypov@...gle.com, shuah@...nel.org,
        kunit-dev@...glegroups.com, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] kunit: tool: Fix error messages for cases of no tests
 and wrong TAP header

On Thu, Jul 1, 2021 at 10:52 AM Rae Moar <rmoar@...gle.com> wrote:
>
> This patch addresses misleading error messages reported by kunit_tool in
> two cases. First, in the case of TAP output having an incorrect header
> format or missing a header, the parser used to output an error message of
> 'no tests run!'. Now the parser outputs an error message of 'could not
> parse test results!'.
>
> As an example:
>
> Before:
> $ ./tools/testing/kunit/kunit.py parse /dev/null
> [ERROR] no tests run!
> ...
>
> After:
> $ ./tools/testing/kunit/kunit.py parse /dev/null
> [ERROR] could not parse test results!
> ...
>
> Second, in the case of TAP output with the correct header but no
> tests, the parser used to output an error message of 'could not parse
> test results!'. Now the parser outputs an error message of 'no tests
> run!'.
>
> As an example:
>
> Before:
> $ echo -e 'TAP version 14\n1..0' | ./tools/testing/kunit/kunit.py parse
> [ERROR] could not parse test results!
>
> After:
> $ echo -e 'TAP version 14\n1..0' | ./tools/testing/kunit/kunit.py parse
> [ERROR] no tests run!
>
> Additionally, this patch also corrects the tests in kunit_tool_test.py
> and adds a test to check the error in the case of TAP output with the
> correct header but no tests.
>
> Signed-off-by: Rae Moar <rmoar@...gle.com>
> Reviewed-by: David Gow <davidgow@...gle.com>
> Reviewed-by: Daniel Latypov <dlatypov@...gle.com>

Reviewed-by: Brendan Higgins <brendanhiggins@...gle.com>