git/t/t4210-log-i18n.sh
Patrick Steinhardt df383b5842 t/test-lib: wire up NO_ICONV prerequisite
The iconv library is used by Git to reencode files, commit messages and
other things. As such it is a rather integral part, but given that many
platforms nowadays use UTF-8 everywhere you can live without support for
reencoding in many situations. It is thus optional to build Git with
iconv, and some of our platforms wired up in "config.mak.uname" disable
it. But while we support building without it, running our test suite
with "NO_ICONV=Yes" causes many test failures.

Wire up a new test prerequisite ICONV that gets populated via our
GIT-BUILD-OPTIONS. Annotate failing tests accordingly.

Note that this commit does not do a deep dive into every single test to
assess whether the failure is expected or not. Most of the tests do
smell like the expected kind of failure though.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
2024-10-16 17:00:49 -04:00

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#!/bin/sh
test_description='test log with i18n features'
TEST_PASSES_SANITIZE_LEAK=true
. ./lib-gettext.sh
if ! test_have_prereq ICONV
then
skip_all='skipping log i18n tests; iconv not available'
test_done
fi
# two forms of é
utf8_e=$(printf '\303\251')
latin1_e=$(printf '\351')
# invalid UTF-8
invalid_e=$(printf '\303\50)') # ")" at end to close opening "("
have_reg_illseq=
if test_have_prereq GETTEXT_LOCALE &&
! LC_ALL=$is_IS_locale test-tool regex --silent $latin1_e
then
have_reg_illseq=1
fi
test_expect_success 'create commits in different encodings' '
test_tick &&
cat >msg <<-EOF &&
utf8
t${utf8_e}st
EOF
git add msg &&
git -c i18n.commitencoding=utf8 commit -F msg &&
cat >msg <<-EOF &&
latin1
t${latin1_e}st
EOF
git add msg &&
git -c i18n.commitencoding=ISO-8859-1 commit -F msg
'
test_expect_success 'log --grep searches in log output encoding (utf8)' '
cat >expect <<-\EOF &&
latin1
utf8
EOF
git log --encoding=utf8 --format=%s --grep=$utf8_e >actual &&
test_cmp expect actual
'
test_expect_success !MINGW 'log --grep searches in log output encoding (latin1)' '
cat >expect <<-\EOF &&
latin1
utf8
EOF
git log --encoding=ISO-8859-1 --format=%s --grep=$latin1_e >actual &&
test_cmp expect actual
'
test_expect_success !MINGW 'log --grep does not find non-reencoded values (utf8)' '
git log --encoding=utf8 --format=%s --grep=$latin1_e >actual &&
test_must_be_empty actual
'
test_expect_success 'log --grep does not find non-reencoded values (latin1)' '
git log --encoding=ISO-8859-1 --format=%s --grep=$utf8_e >actual &&
test_must_be_empty actual
'
triggers_undefined_behaviour () {
local engine="$1"
case $engine in
fixed)
if test -n "$have_reg_illseq" &&
! test_have_prereq LIBPCRE2
then
return 0
fi
;;
basic|extended)
if test -n "$have_reg_illseq"
then
return 0
fi
;;
esac
return 1
}
mismatched_git_log () {
local pattern="$1"
LC_ALL=$is_IS_locale git log --encoding=ISO-8859-1 --format=%s \
--grep=$pattern
}
for engine in fixed basic extended perl
do
prereq=
if test $engine = "perl"
then
prereq=PCRE
fi
force_regex=
if test $engine != "fixed"
then
force_regex='.*'
fi
test_expect_success $prereq "config grep.patternType=$engine" "
git config grep.patternType $engine
"
test_expect_success GETTEXT_LOCALE,$prereq "log --grep does not find non-reencoded values (latin1 + locale)" "
mismatched_git_log '$force_regex$utf8_e' >actual &&
test_must_be_empty actual
"
if ! triggers_undefined_behaviour $engine
then
test_expect_success !MINGW,GETTEXT_LOCALE,$prereq "log --grep searches in log output encoding (latin1 + locale)" "
cat >expect <<-\EOF &&
latin1
utf8
EOF
mismatched_git_log '$force_regex$latin1_e' >actual &&
test_cmp expect actual
"
test_expect_success GETTEXT_LOCALE,$prereq "log --grep does not die on invalid UTF-8 value (latin1 + locale + invalid needle)" "
mismatched_git_log '$force_regex$invalid_e' >actual &&
test_must_be_empty actual
"
fi
done
test_done