grep: fix worktree case in submodules

diff --git a/t/t7814-grep-recurse-submodules.sh b/t/t7814-grep-recurse-submodules.sh
index 134a694516c924c5930b9c227da45e896297a338..48f2b13e7d7905b092ed852c38a2534d3ee31bf2 100755 (executable)
--- a/t/t7814-grep-recurse-submodules.sh
+++ b/t/t7814-grep-recurse-submodules.sh
@@ -392,4 +392,25 @@ test_expect_success 'grep --recurse-submodules with submodules without .gitmodul
        test_cmp expect actual
 '
 
+reset_and_clean () {
+       git reset --hard &&
+       git clean -fd &&
+       git submodule foreach --recursive 'git reset --hard' &&
+       git submodule foreach --recursive 'git clean -fd'
+}
+
+test_expect_success 'grep --recurse-submodules without --cached considers worktree modifications' '
+       reset_and_clean &&
+       echo "A modified line in submodule" >>submodule/a &&
+       echo "submodule/a:A modified line in submodule" >expect &&
+       git grep --recurse-submodules "A modified line in submodule" >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'grep --recurse-submodules with --cached ignores worktree modifications' '
+       reset_and_clean &&
+       echo "A modified line in submodule" >>submodule/a &&
+       test_must_fail git grep --recurse-submodules --cached "A modified line in submodule" >actual 2>&1 &&
+       test_must_be_empty actual
+'
 test_done