t7812: test PCRE2 whitespace bug
Check if git grep works around the PCRE2 big fixed by their e0c6029 (Fix inifinite loop when a single byte newline is searched in JIT., 2020-05-29), which affects version 10.35 and earlier. Searching for leading whitespace also triggers the endless loop. Set a one-second alarm to abort in case we do get hit by the bug, to avoid having to wait forever for the test result. Reported-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe committed
Apr 8, 2022 at 18:21 UTC
c36c27e75cb367e16392cc8fc4fd3f311126ab59
1 file changed
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t/t7812-grep-icase-non-ascii.sh
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@@ -4,6 +4,10 @@ test_description='grep icase on non-English locales'
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. ./lib-gettext.sh
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+doalarm () {
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+ perl -e 'alarm shift; exec @ARGV' -- "$@"
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+}
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+
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test_expect_success GETTEXT_LOCALE 'setup' '
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test_write_lines "TILRAUN: Halló Heimur!" >file &&
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git add file &&
@@ -139,4 +143,10 @@ test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep non-literal ASCII fro
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test_cmp expected actual
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'
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+test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep avoid endless loop bug' '
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+ echo " Halló" >leading-whitespace &&
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+ git add leading-whitespace &&
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+ doalarm 1 git grep --perl-regexp "^\s" leading-whitespace
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+'
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+
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test_done