tests: drs-push-rejects: check that failures do not update any refs

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/tests/drs-push-rejects b/tests/tests/drs-push-rejects
index 9b2a08b..f6b5880 100755
--- a/tests/tests/drs-push-rejects
+++ b/tests/tests/drs-push-rejects
@@ -10,8 +10,17 @@ t-worktree drs
 
 cd $p
 
+reporefs () {
+	(set -e
+	if test -d $tmp/git/$p.git; then
+		cd $tmp/git/$p.git
+		git show-ref
+	fi)
+}
+
 mustfail () {
 	local wantmsg="$1"; shift
+	reporefs >$tmp/show-refs.pre-push
 	set +e
 	git push origin "$@" 2>&1 |tee $tmp/mustfail.txt
 	ps="${PIPESTATUS[*]}"
@@ -24,6 +33,8 @@ mustfail () {
 	if ! fgrep "$wantmsg" $tmp/mustfail.txt >/dev/null; then
 		fail "error message not found"
 	fi
+	reporefs >$tmp/show-refs.post-push
+	diff $tmp/show-refs.{pre,post}-push
 }
 
 prep () {