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From: Karel Zak <kzak@redhat.com>
To: Patrick Steinhardt <ps@pks.im>
Cc: util-linux@vger.kernel.org
Subject: Re: [PATCH] tests: use env and support both unbuffer/stdbuf
Date: Fri, 30 Aug 2019 21:08:07 +0200
Message-ID: <20190830190807.f67rpglfbrkt3n7p@10.255.255.10> (raw)
In-Reply-To: <20190828105107.tkhwqh3limxjo5yc@10.255.255.10>

On Wed, Aug 28, 2019 at 12:51:11PM +0200, Karel Zak wrote:
> Maybe the best and most robust solution would be split stdout and
> stderr into two files for each test. Now we have $TS_OUTPUT, what about
> to replace it with $TS_STDOUT and $TS_STDERR? Something like:
> 
>  - $TS_CMD_MOUNT $DEVICE $TS_MOUNTPOINT >> $TS_OUTPUT 2>&1
>  + $TS_CMD_MOUNT $DEVICE $TS_MOUNTPOINT >> $TS_STDOUT 2>> $TS_STDERR
> 
> And also create tests/expected/<foo>/<bar>{.err} for tests where any
> output on stderr is expected, otherwise assume $TS_STDERR is empty.
> 
> This change will be pretty invasive, but than we can easily compare 
> outputs and keep track about what is where printed. 

Implemented. So, the voodoo with (un)buffered output is no more
necessary.

The last remaining problem is colctl, see:

    https://travis-ci.org/karelzak/util-linux/jobs/578940843

diff-{{{
--- /home/travis/build/karelzak/util-linux/tests/expected/colcrt/regressions-hang1	2019-08-30 18:48:16.236479052 +0000
+++ /home/travis/build/karelzak/util-linux/tests/output/colcrt/regressions-hang1	2019-08-30 18:51:50.046236386 +0000
@@ -1,3 +1 @@
-789:;<=>=>?IABUVNXYZ[ `abcdefgg !"#$%&'()*+,-./01234)*:,-./0123456789:;[=>?1234)*:,-./0123456789:;[=>?4456789:;<=>?IABUVN`abcdefg !"
-                     -
-return value: 0
+return value: 124
}}}-diff

 ... for some reason it returns nothing, but $? is 124. The problem is
 elapsed timeout, but why?

        timeout 2 env LC_ALL=C.UTF-8 $TS_CMD_COLCRT < $1 >> $TS_OUTPUT 2>> $TS_ERRLOG
        echo "return value: $?" >> $TS_OUTPUT

 Karel

-- 
 Karel Zak  <kzak@redhat.com>
 http://karelzak.blogspot.com

  reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23 10:16 [PATCH 0/6] Test suite fixes for musl libc Patrick Steinhardt
2019-08-23 10:16 ` [PATCH 1/6] tests: remove reliance on buffer behaviour of stderr/stdout streams Patrick Steinhardt
2019-08-23 10:16 ` [PATCH 2/6] tests: colcrt: fix reliance on EILSEQ in POSIX locale Patrick Steinhardt
2019-08-23 10:17 ` [PATCH 3/6] tests: column: use actually invalid multibytes to test encoding Patrick Steinhardt
2019-08-23 10:17 ` [PATCH 4/6] tests: col: avoid hardcoding of errno string Patrick Steinhardt
2019-08-23 10:17 ` [PATCH 5/6] tests: fdisk: " Patrick Steinhardt
2019-08-23 10:17 ` [PATCH 6/6] tests: libfdisk: remove reliance on buffer behaviour of standard streams Patrick Steinhardt
2019-08-23 12:15   ` Karel Zak
2019-08-23 13:32 ` [PATCH v2 0/6] Test suite fixes for musl libc Patrick Steinhardt
2019-08-23 13:32   ` [PATCH v2 1/6] tests: remove reliance on buffer behaviour of stderr/stdout streams Patrick Steinhardt
2019-08-27 11:17     ` Karel Zak
2019-08-27 11:49       ` Patrick Steinhardt
2019-08-27 12:32         ` Karel Zak
2019-08-27 11:55       ` Patrick Steinhardt
2019-08-27 12:31         ` Karel Zak
2019-08-27 12:26       ` [PATCH] tests: use env and support both unbuffer/stdbuf Patrick Steinhardt
2019-08-27 12:46         ` Karel Zak
2019-08-28 10:51         ` Karel Zak
2019-08-30 19:08           ` Karel Zak [this message]
2019-08-31  7:41           ` Patrick Steinhardt
2019-08-23 13:32   ` [PATCH v2 2/6] tests: libfdisk: remove reliance on buffer behaviour of standard streams Patrick Steinhardt
2019-08-23 13:32   ` [PATCH v2 3/6] tests: colcrt: fix reliance on EILSEQ in POSIX locale Patrick Steinhardt
2019-08-23 13:32   ` [PATCH v2 4/6] tests: column: use actually invalid multibytes to test encoding Patrick Steinhardt
2019-08-23 13:32   ` [PATCH v2 5/6] tests: col: avoid hardcoding of errno string Patrick Steinhardt
2019-08-23 13:32   ` [PATCH v2 6/6] tests: fdisk: " Patrick Steinhardt

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