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From: Junio C Hamano <gitster@pobox.com>
To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Cc: Phillip Wood <phillip.wood@dunelm.org.uk>,
	git@vger.kernel.org, avarab@gmail.com
Subject: Re: [PATCH 2/3] rebase: Add tests for console output
Date: Fri, 02 Jun 2017 08:40:36 +0900	[thread overview]
Message-ID: <xmqq7f0v46q3.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1.1706011329350.3610@virtualbox> (Johannes Schindelin's message of "Thu, 1 Jun 2017 14:56:13 +0200 (CEST)")

Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

> Also, about the commit IDs. As long as the tests are consistent (i.e. they
> use test_commit rather than plain `git commit`, or at least call
> `test_tick` beforehand), the commit IDs should actually be identical
> between runs and not depend on the time of day or the date.
>
> The only exception to that rule is when some previous test cases call
> `test_commit` but are guarded behind some prereq and may not be executed
> at all. In that case, the precise commit IDs depend on the particular set
> of active prereqs.

Good observation.  The tests written such a way may make later
introduction of new hash function troublesome, though (we already
have tons of them, and it is already a hassle just imagining that we
will have to migrate them X-<).  

And what you gave below is an excellent suggestion to even solve
that future headaches.

> But as far as I can tell, t3420 does not have any test cases guarded by
> prereqs.
>
> Taking an additional step back, I wonder whether we have to hard-code the
> commit IDs (or XXX) to begin with. Why not generate the `expect` files
> with the information at hand? We can simply ask `git rev-parse --short`.
>
> For the stash's commit ID, there is no record in the ref space, of course
> (because it was created with `git stash create`). But I think in this
> case, it is legitimate to simply grep the output.
>
> That way, the test would be precise and resilient.
>
> So for example instead of adding the t/t3420/expected-success-am verbatim,
> you could generate the output via
>
> 	cat >expect <<-EOF
> 	$(grep "^Created autostash: [0-9a-f][0-9a-f]*\\$" output)
> 	HEAD is now at $(git rev-parse --short HEAD~2) third commit
> 	First, rewinding head to replay your work on top of it...
> 	Applying: second commit
> 	Applying: third commit
> 	Applied autostash.
> 	EOF
>
> Ciao,
> Johannes

  reply	other threads:[~2017-06-01 23:40 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-31 10:42 [PATCH 0/3] Add regression tests for recent rebase -i fixes Phillip Wood
2017-05-31 10:42 ` [PATCH 1/3] rebase -i: Add test for reflog message Phillip Wood
2017-06-01  2:00   ` Junio C Hamano
2017-05-31 10:42 ` [PATCH 2/3] rebase: Add tests for console output Phillip Wood
2017-05-31 19:02   ` Phillip Wood
2017-06-01  1:59     ` Junio C Hamano
2017-06-01 12:56   ` Johannes Schindelin
2017-06-01 23:40     ` Junio C Hamano [this message]
2017-06-01 23:47       ` Stefan Beller
2017-06-02 12:47         ` pushing for a new hash, was " Johannes Schindelin
2017-06-02 17:54           ` Jonathan Nieder
2017-06-02 18:05             ` Jonathan Nieder
2017-06-02 20:29             ` Ævar Arnfjörð Bjarmason
2017-06-15 10:38               ` Johannes Schindelin
2017-06-03  0:36             ` Junio C Hamano
2017-06-06 22:22             ` Johannes Schindelin
2017-06-06 22:45               ` Jonathan Nieder
2017-06-07  1:09                 ` Junio C Hamano
2017-06-07  2:18                   ` [PATCH] t4005: modernize style and drop hard coded sha1 Stefan Beller
2017-06-07 17:39                     ` Brandon Williams
2017-06-06 22:45               ` pushing for a new hash, was Re: [PATCH 2/3] rebase: Add tests for console output Stefan Beller
2017-06-06 22:52                 ` Jonathan Nieder
2017-06-07  0:34                 ` Samuel Lijin
2017-06-07 14:47                 ` Johannes Schindelin
2017-06-07 16:53                   ` Stefan Beller
2017-06-07 10:47     ` Phillip Wood
2017-06-09 16:39       ` Junio C Hamano
2017-06-14 10:18         ` Phillip Wood
2017-06-14 12:51       ` Johannes Schindelin
2017-05-31 10:42 ` [PATCH 3/3] rebase: Add tests for console output with conflicting stash Phillip Wood
2017-06-14 10:24 ` [PATCH v2 0/3] Add regression tests for rectent rebase -i fixes Phillip Wood
2017-06-14 10:24   ` [PATCH v2 1/3] rebase -i: Add test for reflog message Phillip Wood
2017-06-14 10:24   ` [PATCH v2 2/3] rebase: Add regression tests for console output Phillip Wood
2017-06-14 10:24   ` [PATCH v2 3/3] rebase: Add more " Phillip Wood
2017-06-14 20:35   ` [PATCH v2 0/3] Add regression tests for rectent rebase -i fixes Johannes Schindelin
2017-06-15 23:05   ` Junio C Hamano
2017-06-15 23:23     ` Junio C Hamano
2017-06-15 23:29       ` Junio C Hamano
2017-06-16 13:49         ` Johannes Schindelin
2017-06-16 18:43           ` Johannes Sixt
2017-06-16 21:05             ` Junio C Hamano
2017-06-19 19:45             ` Johannes Sixt
2017-06-19 20:02               ` Junio C Hamano
2017-06-19  9:49           ` Phillip Wood
2017-06-19 15:45             ` Junio C Hamano
2017-06-19  9:52         ` Phillip Wood
2017-06-19 17:56 ` [PATCH v3 0/4] Add regression tests for recent " Phillip Wood
2017-06-19 17:56   ` [PATCH v3 1/4] sequencer: print autostash messages to stderr Phillip Wood
2017-06-19 17:56   ` [PATCH v3 2/4] rebase -i: Add test for reflog message Phillip Wood
2017-06-19 17:56   ` [PATCH v3 3/4] rebase: Add regression tests for console output Phillip Wood
2017-06-19 17:56   ` [PATCH v3 4/4] rebase: Add more " Phillip Wood
2017-06-23  4:17   ` [PATCH v3 0/4] Add regression tests for recent rebase -i fixes Junio C Hamano
2017-06-23  5:07     ` Junio C Hamano
2017-06-23  9:53       ` Phillip Wood
2017-06-23 17:03         ` Junio C Hamano
2017-06-23 18:53           ` Junio C Hamano
2017-06-26  9:17             ` Phillip Wood
2017-06-23 19:01           ` Junio C Hamano
2017-06-26  9:23             ` Phillip Wood

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