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From: Jeff King <peff@peff.net>
To: Danh Doan <congdanhqx@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 6/6] t4124: fix test for non-compliance diff
Date: Fri, 20 Mar 2020 01:23:14 -0400	[thread overview]
Message-ID: <20200320052314.GB499858@coredump.intra.peff.net> (raw)
In-Reply-To: <20200320015223.GG1858@danh.dev>

On Fri, Mar 20, 2020 at 08:52:23AM +0700, Danh Doan wrote:

> > diff --git a/t/t4124-apply-ws-rule.sh b/t/t4124-apply-ws-rule.sh
> > index 971a5a7512..15cb0c81b7 100755
> > --- a/t/t4124-apply-ws-rule.sh
> > +++ b/t/t4124-apply-ws-rule.sh
> > @@ -50,8 +50,9 @@ test_fix () {
> >  	# fix should not barf
> >  	apply_patch --whitespace=fix || return 1
> >  
> > -	# find touched lines
> > -	$DIFF file target | sed -n -e "s/^> //p" >fixed
> > +	# find touched lines; handle either normal or unified
> > +	# diff, as system diff may generate either
> > +	$DIFF file target | grep '^[>+][^+]' >fixed
> >  
> >  	# the changed lines are all expected to change
> >  	fixed_cnt=$(wc -l <fixed)
> > 
> > seems to work for with both busybox diff and GNU diff.
> 
> 3 lines after this one:
> 
> 	?*) expect_cnt=$(grep "[$1]" <fixed | wc -l) ;;
> 
> As of now, we could simply replace sed with grep entirely,
> because ! "$1" ~"[>+]".
> 
> Considering the complicated of:
> 
> 	test_expect_success "rule=$rule" '
> 		git config core.whitespace "$rule" &&
> 		test_fix "$tt$ts$ti$th"
> 	'
> 
> I think it's better to use sed here.

Fair enough. I think it's OK now, but I agree that it puts a pretty
subtle assumption into the test_fix function (and that's far removed
from what actual tests will call it with, so it's easy to miss). Using
sed should be more maintainable.

-Peff

  reply	other threads:[~2020-03-20  5:23 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-19 14:00 [PATCH 0/6] fix test failure with busybox Đoàn Trần Công Danh
2020-03-19 14:00 ` [PATCH 1/6] t4061: use POSIX compliance regex(7) Đoàn Trần Công Danh
2020-03-19 15:53   ` Jeff King
2020-03-19 16:01     ` Eric Sunshine
2020-03-19 22:02       ` Junio C Hamano
2020-03-20  1:35         ` Danh Doan
2020-03-19 14:00 ` [PATCH 2/6] test-lib-functions: test_cmp: eval $GIT_TEST_CMP Đoàn Trần Công Danh
2020-03-19 16:02   ` Jeff King
2020-03-19 16:14     ` Eric Sunshine
2020-03-20  1:29     ` Danh Doan
2020-03-19 14:00 ` [PATCH 3/6] t5003: skip conversion test if unzip -a is unavailable Đoàn Trần Công Danh
2020-03-19 16:03   ` Jeff King
2020-03-20  0:39     ` Danh Doan
2020-03-20  5:32       ` Jeff King
2020-03-19 14:00 ` [PATCH 4/6] t5616: use rev-parse instead to get HEAD's object_id Đoàn Trần Công Danh
2020-03-19 16:07   ` Jeff King
2020-03-20  0:57     ` Danh Doan
2020-03-19 14:00 ` [PATCH 5/6] t7063: use POSIX find(1) syntax Đoàn Trần Công Danh
2020-03-19 16:12   ` Jeff King
2020-03-19 22:16     ` Junio C Hamano
2020-03-20  1:41       ` Danh Doan
2020-03-20  2:20         ` Danh Doan
2020-03-20  5:37         ` Jeff King
2020-03-22  0:37           ` Danh Doan
2020-03-22  6:05             ` Jeff King
2020-03-19 14:00 ` [PATCH 6/6] t4124: fix test for non-compliance diff Đoàn Trần Công Danh
2020-03-19 16:33   ` Jeff King
2020-03-19 22:58     ` Junio C Hamano
2020-03-20  5:20       ` Jeff King
2020-03-20  1:52     ` Danh Doan
2020-03-20  5:23       ` Jeff King [this message]
2020-03-19 15:51 ` [PATCH 0/6] fix test failure with busybox Jeff King
2020-03-20  0:37   ` Danh Doan
2020-03-20  5:30     ` Jeff King
2020-03-19 16:34 ` Jeff King

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