Test atomic git-commit --interactive

Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t7501-commit.sh b/t/t7501-commit.sh
index c2fd116d633351eeaa75cc4040f6e4a73670975b..73e19c50b0d8f57cf36b2d377f0f7b9eb4ce4072 100755 (executable)
--- a/t/t7501-commit.sh
+++ b/t/t7501-commit.sh
@@ -133,6 +133,16 @@ test_expect_success PERL \
        "interactive add" \
        "echo 7 | git commit --interactive | grep 'What now'"
 
+test_expect_success PERL \
+       "commit --interactive doesn't change index if editor aborts" \
+       "echo zoo >file &&
+       test_must_fail git diff --exit-code >diff1 &&
+       (echo u ; echo '*' ; echo q) |
+       (EDITOR=: && export EDITOR &&
+        test_must_fail git commit --interactive) &&
+       git diff >diff2 &&
+       test_cmp diff1 diff2"
+
 test_expect_success \
        "showing committed revisions" \
        "git rev-list HEAD >current"