grep: prepare for testing binary regexes containing rx metacharacters

diff --git a/t/t7008-grep-binary.sh b/t/t7008-grep-binary.sh
index 9c9c378119defa7884a21beb27e806ddf1171497..20370d6e0c22148d0a2377088ec6f694dec63ed7 100755 (executable)
--- a/t/t7008-grep-binary.sh
+++ b/t/t7008-grep-binary.sh
@@ -4,8 +4,31 @@ test_description='git grep in binary files'
 
 . ./test-lib.sh
 
+nul_match () {
+       matches=$1
+       flags=$2
+       pattern=$3
+       pattern_human=$(echo "$pattern" | sed 's/Q/<NUL>/g')
+
+       if test "$matches" = 1
+       then
+               test_expect_success "git grep -f f $flags '$pattern_human' a" "
+                       printf '$pattern' | q_to_nul >f &&
+                       git grep -f f $flags a
+               "
+       elif test "$matches" = 0
+       then
+               test_expect_success "git grep -f f $flags '$pattern_human' a" "
+                       printf '$pattern' | q_to_nul >f &&
+                       test_must_fail git grep -f f $flags a
+               "
+       else
+               test_expect_success "PANIC: Test framework error. Unknown matches value $matches" 'false'
+       fi
+}
+
 test_expect_success 'setup' "
-       echo 'binaryQfile' | q_to_nul >a &&
+       echo 'binaryQfileQm[*]cQ*æQð' | q_to_nul >a &&
        git add a &&
        git commit -m.
 "
@@ -69,35 +92,12 @@ test_expect_failure 'git grep .fi a' '
        git grep .fi a
 '
 
-test_expect_success 'git grep -F y<NUL>f a' "
-       printf 'yQf' | q_to_nul >f &&
-       git grep -f f -F a
-"
-
-test_expect_success 'git grep -F y<NUL>x a' "
-       printf 'yQx' | q_to_nul >f &&
-       test_must_fail git grep -f f -F a
-"
-
-test_expect_success 'git grep -Fi Y<NUL>f a' "
-       printf 'YQf' | q_to_nul >f &&
-       git grep -f f -Fi a
-"
-
-test_expect_success 'git grep -Fi Y<NUL>x a' "
-       printf 'YQx' | q_to_nul >f &&
-       test_must_fail git grep -f f -Fi a
-"
-
-test_expect_success 'git grep y<NUL>f a' "
-       printf 'yQf' | q_to_nul >f &&
-       git grep -f f a
-"
-
-test_expect_success 'git grep y<NUL>x a' "
-       printf 'yQx' | q_to_nul >f &&
-       test_must_fail git grep -f f a
-"
+nul_match 1 '-F' 'yQf'
+nul_match 0 '-F' 'yQx'
+nul_match 1 '-Fi' 'YQf'
+nul_match 0 '-Fi' 'YQx'
+nul_match 1 '' 'yQf'
+nul_match 0 '' 'yQx'
 
 test_expect_success 'grep respects binary diff attribute' '
        echo text >t &&
@@ -162,7 +162,7 @@ test_expect_success 'grep does not honor textconv' '
 '
 
 test_expect_success 'grep --textconv honors textconv' '
-       echo "a:binaryQfile" >expect &&
+       echo "a:binaryQfileQm[*]cQ*æQð" >expect &&
        git grep --textconv Qfile >actual &&
        test_cmp expect actual
 '
@@ -172,7 +172,7 @@ test_expect_success 'grep --no-textconv does not honor textconv' '
 '
 
 test_expect_success 'grep --textconv blob honors textconv' '
-       echo "HEAD:a:binaryQfile" >expect &&
+       echo "HEAD:a:binaryQfileQm[*]cQ*æQð" >expect &&
        git grep --textconv Qfile HEAD:a >actual &&
        test_cmp expect actual
 '