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t9604: Fix test for musl libc and new Debian 

CST6CDT and the like are POSIX timezone, with no rule for transition.
And POSIX doesn't enforce how to interpret the rule if it's omitted.
Some libc (e.g. glibc) resorted back to IANA (formerly Olson) db rules
for those timezones.  Some libc (e.g. FreeBSD) uses a fixed rule.
Other libc (e.g. musl) interpret that as no transition at all [1].

In addition, distributions (notoriously Debian-derived, which uses IANA
db for CST6CDT and the like) started to split "legacy" timezones
like CST6CDT, EST5EDT into `tzdata-legacy', which will not be installed
by default [2].

In those cases, t9604 will run into failure.

Let's switch to POSIX timezone with rules to change timezone.

1: http://mm.icann.org/pipermail/tz/2024-March/058751.html
2: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1043250

Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Đoàn Trần Công Danh 2024-04-10 10:28:12 +07:00 committed by Junio C Hamano
parent 91ec36f2cc
commit 03e84cca5d
1 changed files with 23 additions and 6 deletions
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29
t/t9604-cvsimport-timestamps.sh
View File

@ -3,11 +3,28 @@
test_description='git cvsimport timestamps'
. ./lib-cvs.sh
test_lazy_prereq POSIX_TIMEZONE '
local tz=XST-1XDT,M3.5.0,M11.1.0
echo "1711846799 -> 2024-03-31 01:59:59 +0100" >expected &&
TZ="$tz" test-tool date show:iso-local 1711846799 >actual &&
test_cmp expected actual &&
echo "1711846800 -> 2024-03-31 03:00:00 +0200" >expected &&
TZ="$tz" test-tool date show:iso-local 1711846800 >actual &&
test_cmp expected actual &&
echo "1730591999 -> 2024-11-03 01:59:59 +0200" >expected &&
TZ="$tz" test-tool date show:iso-local 1730591999 >actual &&
test_cmp expected actual &&
echo "1730592000 -> 2024-11-03 01:00:00 +0100" >expected &&
TZ="$tz" test-tool date show:iso-local 1730592000 >actual &&
test_cmp expected actual
'
setup_cvs_test_repository t9604
test_expect_success PERL 'check timestamps are UTC (TZ=CST6CDT)' '
test_expect_success PERL,POSIX_TIMEZONE 'check timestamps are UTC' '
TZ=CST6CDT git cvsimport -p"-x" -C module-1 module &&
TZ=CST6CDT,M4.1.0,M10.5.0 \
git cvsimport -p"-x" -C module-1 module &&
git cvsimport -p"-x" -C module-1 module &&
(
cd module-1 &&
@ -34,13 +51,13 @@ test_expect_success PERL 'check timestamps are UTC (TZ=CST6CDT)' '
test_cmp expect-1 actual-1
'
test_expect_success PERL 'check timestamps with author-specific timezones' '
test_expect_success PERL,POSIX_TIMEZONE 'check timestamps with author-specific timezones' '
cat >cvs-authors <<-EOF &&
user1=User One <user1@domain.org>
user2=User Two <user2@domain.org> CST6CDT
user3=User Three <user3@domain.org> EST5EDT
user4=User Four <user4@domain.org> MST7MDT
user2=User Two <user2@domain.org> CST6CDT,M4.1.0,M10.5.0
user3=User Three <user3@domain.org> EST5EDT,M4.1.0,M10.5.0
user4=User Four <user4@domain.org> MST7MDT,M4.1.0,M10.5.0
EOF
git cvsimport -p"-x" -A cvs-authors -C module-2 module &&
(