Re: no-xmailer tests fail under Mac OS

[Jeff King <peff@peff.net>]

On Fri, Dec 05, 2014 at 06:05:24PM -0800, Michael Blume wrote:

> Failures start from
> 
> commit d2384abff7a6181fd7b9a51af7e780aa21e5cb8d (refs/bisect/bad)
> Author: Luis Henriques <henrix@camandro.org>
> Date:   Thu Dec 4 19:11:30 2014 +0000
> 
>     test/send-email: --[no-]xmailer tests
> 
>     Add tests for the --[no-]xmailer option.
> 
>     Signed-off-by: Luis Henriques <henrix@camandro.org>
>     Signed-off-by: Junio C Hamano <gitster@pobox.com>
> 
> but continue with Junio's SQUASH??? commit at b728d078

The commit contains:

  +       test "z$(grep ^X-Mailer: out | wc -l)" = "z$expected"

We have had trouble in the past with "wc -l" output not being strictly
portable. I do not recall offhand which systems, but it is a good bet
that this is the culprit. Doing:

  grep ^X-Mailer: out >mailer &&
  test_line_count = $expected mailer

should fix it. It might be even nicer to actually compare the x-mailer
line we find to an expected output, but that may introduce complications
if the value changes with the version or something (you'd have to
sanitize the output, and then I do not know that the test is really
buying much over just seeing whether it exists).

-Peff