linux-kernel - Re: [PATCH v5 09/12] kunit: test: add test plan to KUnit TAP format

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Message-ID: <202006261434.119AE33DBB@keescook>
Date:   Fri, 26 Jun 2020 14:35:43 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Brendan Higgins <brendanhiggins@...gle.com>
Cc:     jdike@...toit.com, richard@....at, anton.ivanov@...bridgegreys.com,
        arnd@...db.de, skhan@...uxfoundation.org, alan.maguire@...cle.com,
        yzaikin@...gle.com, davidgow@...gle.com, akpm@...ux-foundation.org,
        rppt@...ux.ibm.com, frowand.list@...il.com,
        catalin.marinas@....com, will@...nel.org, monstr@...str.eu,
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        sboyd@...nel.org, logang@...tatee.com, mcgrof@...nel.org,
        linux-um@...ts.infradead.org, linux-arch@...r.kernel.org,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
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        linuxppc-dev@...ts.ozlabs.org, linux-xtensa@...ux-xtensa.org
Subject: Re: [PATCH v5 09/12] kunit: test: add test plan to KUnit TAP format

On Fri, Jun 26, 2020 at 02:09:14PM -0700, Brendan Higgins wrote:
> TAP 14 allows an optional test plan to be emitted before the start of
> the start of testing[1]; this is valuable because it makes it possible
> for a test harness to detect whether the number of tests run matches the
> number of tests expected to be run, ensuring that no tests silently
> failed.
> 
> Link[1]: https://github.com/isaacs/testanything.github.io/blob/tap14/tap-version-14-specification.md#the-plan
> Signed-off-by: Brendan Higgins <brendanhiggins@...gle.com>
> Reviewed-by: Stephen Boyd <sboyd@...nel.org>

Look good, except...

> diff --git a/tools/testing/kunit/test_data/test_is_test_passed-all_passed.log b/tools/testing/kunit/test_data/test_is_test_passed-all_passed.log
> index 62ebc0288355c4b122ccc18ae2505f971efa57bc..bc0dc8fe35b760b1feb74ec419818dbfae1adb5c 100644
> GIT binary patch
> delta 28
> jcmbQmGoME|#4$jjEVZaOGe1wk(1goSPtRy09}gP<dC~`u
> 
> delta 23
> ecmbQwGmD2W#4$jjEVZaOGe1wk&}5@94;uhhkp{*9
> 
> diff --git a/tools/testing/kunit/test_data/test_is_test_passed-crash.log b/tools/testing/kunit/test_data/test_is_test_passed-crash.log
> index 0b249870c8be417a5865bd40a24c8597bb7f5ab1..4d97f6708c4a5ad5bb2ac879e12afca6e816d83d 100644
> GIT binary patch
> delta 15
> WcmX>hepY;fFN>j`p3z318g2k9Uj*m?
> 
> delta 10
> RcmX>renNbL@...NZU7lr1S$Xk
> 
> diff --git a/tools/testing/kunit/test_data/test_is_test_passed-failure.log b/tools/testing/kunit/test_data/test_is_test_passed-failure.log
> index 9e89d32d5667a59d137f8adacf3a88fdb7f88baf..7a416497e3bec044eefc1535f7d84ee85703ba97 100644
> GIT binary patch
> delta 28
> jcmZ3&yOLKp#4$jjEVZaOGe1wk(1goSPtRy0-!wJ=eKrU$
> 
> delta 23
> ecmZ3<yM&i7#4$jjEVZaOGe1wk&}5_VG&TTPhX-Z=

What is happening here?? Those logs appear as text to me. Why did git
freak out?

-- 
Kees Cook