From: Junio C Hamano <gitster@pobox.com>
Date: Tue, 29 Jun 2021 04:22:37 GMT
Subject: Re: [PATCH 1/3] Add a second's delay to t7519 for untracked cache
Message-ID: <xmqq8s2t1er6.fsf@gitster.g>
In-Reply-To: <c4d2a3cab4bd5243a776002e4f04fead7b1f34c5.1624559402.git.gitgitgadget@gmail.com>

"Tao Klerks via GitGitGadget" <gitgitgadget@gmail.com> writes:

> From: Tao Klerks <tao@klerks.biz>
>
> In t7519 there is a test that writes files to disk, and immediately
> writes the untracked index. Because of mtime-comparison logic
> that uses a 1-second resolution, this means the cached entries
> are not trusted/used under some circumstances (see
> read-cache.c#is_racy_stat()).
>
> Untracked cache tests in t7063 use a 1-second delay to avoid
> this issue. We should do the same here.

We shouldn't waste wallclock time by slowing down tests, which
already take way too much time.  If you can use "test-tool chmtime"
to pretend as if the index file was written earlier than it actually
is, that would be a better solution.

> +avoid_racy() {

Style (see below).

> +	sleep 1
> +}
> +
>  dirty_repo () {