git grep -f f -Fi a
"
-test_expect_failure 'git grep -Fi Y<NUL>x 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
"
git grep -f f a
"
-test_expect_failure 'git grep y<NUL>x a' "
+test_expect_success 'git grep y<NUL>x a' "
printf 'yQx' | q_to_nul >f &&
test_must_fail git grep -f f a
"