git/t/t7816-grep-binary-pattern.sh

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#!/bin/sh
test_description='git grep with a binary pattern files'
TEST_PASSES_SANITIZE_LEAK=true
. ./lib-gettext.sh
nul_match_internal () {
matches=$1
prereqs=$2
lc_all=$3
extra_flags=$4
flags=$5
pattern=$6
pattern_human=$(echo "$pattern" | sed 's/Q/<NUL>/g')
if test "$matches" = 1
then
test_expect_success $prereqs "LC_ALL='$lc_all' git grep $extra_flags -f f $flags '$pattern_human' a" "
printf '$pattern' | q_to_nul >f &&
LC_ALL='$lc_all' git grep $extra_flags -f f $flags a
"
elif test "$matches" = 0
then
test_expect_success $prereqs "LC_ALL='$lc_all' git grep $extra_flags -f f $flags '$pattern_human' a" "
>stderr &&
printf '$pattern' | q_to_nul >f &&
test_must_fail env LC_ALL=\"$lc_all\" git grep $extra_flags -f f $flags a 2>stderr &&
test_grep ! 'This is only supported with -P under PCRE v2' stderr
"
elif test "$matches" = P
then
test_expect_success $prereqs "error, PCRE v2 only: LC_ALL='$lc_all' git grep -f f $flags '$pattern_human' a" "
>stderr &&
printf '$pattern' | q_to_nul >f &&
test_must_fail env LC_ALL=\"$lc_all\" git grep -f f $flags a 2>stderr &&
test_grep 'This is only supported with -P under PCRE v2' stderr
"
else
test_expect_success "PANIC: Test framework error. Unknown matches value $matches" 'false'
fi
}
nul_match () {
matches=$1
matches_pcre2=$2
matches_pcre2_locale=$3
flags=$4
pattern=$5
pattern_human=$(echo "$pattern" | sed 's/Q/<NUL>/g')
nul_match_internal "$matches" "" "C" "" "$flags" "$pattern"
nul_match_internal "$matches_pcre2" "LIBPCRE2" "C" "-P" "$flags" "$pattern"
nul_match_internal "$matches_pcre2_locale" "LIBPCRE2,GETTEXT_LOCALE" "$is_IS_locale" "-P" "$flags" "$pattern"
}
test_expect_success 'setup' "
echo 'binaryQfileQm[*]cQ*æQð' | q_to_nul >a &&
git add a &&
git commit -m.
"
# Simple fixed-string matching
nul_match P P P '-F' 'yQf'
nul_match P P P '-F' 'yQx'
nul_match P P P '-Fi' 'YQf'
nul_match P P P '-Fi' 'YQx'
nul_match P P 1 '' 'yQf'
nul_match P P 0 '' 'yQx'
nul_match P P 1 '' 'æQð'
nul_match P P P '-F' 'eQm[*]c'
nul_match P P P '-Fi' 'EQM[*]C'
# Regex patterns that would match but shouldn't with -F
nul_match P P P '-F' 'yQ[f]'
nul_match P P P '-F' '[y]Qf'
nul_match P P P '-Fi' 'YQ[F]'
nul_match P P P '-Fi' '[Y]QF'
nul_match P P P '-F' 'æQ[ð]'
nul_match P P P '-F' '[æ]Qð'
# Matching pattern and subject case with -i
nul_match P 1 1 '-i' '[æ]Qð'
# ...PCRE v2 only matches non-ASCII with -i casefolding under UTF-8
# semantics
nul_match P P P '-Fi' 'ÆQ[Ð]'
nul_match P 0 1 '-i' 'ÆQ[Ð]'
nul_match P 0 1 '-i' '[Æ]QÐ'
nul_match P 0 1 '-i' '[Æ]Qð'
nul_match P 0 1 '-i' 'ÆQÐ'
# \0 in regexes can only work with -P & PCRE v2
nul_match P P 1 '' 'yQ[f]'
nul_match P P 1 '' '[y]Qf'
nul_match P P 1 '-i' 'YQ[F]'
nul_match P P 1 '-i' '[Y]Qf'
nul_match P P 1 '' 'æQ[ð]'
nul_match P P 1 '' '[æ]Qð'
nul_match P P 1 '-i' 'ÆQ[Ð]'
nul_match P P 1 '' 'eQm.*cQ'
nul_match P P 1 '-i' 'EQM.*cQ'
nul_match P P 0 '' 'eQm[*]c'
nul_match P P 0 '-i' 'EQM[*]C'
# Assert that we're using REG_STARTEND and the pattern doesn't match
# just because it's cut off at the first \0.
nul_match P P 0 '-i' 'NOMATCHQð'
nul_match P P 0 '-i' '[Æ]QNOMATCH'
nul_match P P 0 '-i' '[æ]QNOMATCH'
# Ensure that the matcher doesn't regress to something that stops at
# \0
nul_match P P P '-F' 'yQ[f]'
nul_match P P P '-Fi' 'YQ[F]'
nul_match P P 0 '' 'yQNOMATCH'
nul_match P P 0 '' 'QNOMATCH'
nul_match P P 0 '-i' 'YQNOMATCH'
nul_match P P 0 '-i' 'QNOMATCH'
nul_match P P P '-F' 'æQ[ð]'
nul_match P P P '-Fi' 'ÆQ[Ð]'
nul_match P P 1 '-i' 'ÆQ[Ð]'
nul_match P P 0 '' 'yQNÓMATCH'
nul_match P P 0 '' 'QNÓMATCH'
nul_match P P 0 '-i' 'YQNÓMATCH'
nul_match P P 0 '-i' 'QNÓMATCH'
test_done