rev-list: check reflog_info before showing usage

diff --git a/t/t6002-rev-list-bisect.sh b/t/t6002-rev-list-bisect.sh
index 3bf2759eaebd38bca5d37f624144436fc77828eb..534903bbd2972301965a3d7eed6fa8e380eeeb86 100755 (executable)
--- a/t/t6002-rev-list-bisect.sh
+++ b/t/t6002-rev-list-bisect.sh
@@ -235,4 +235,18 @@ test_sequence "--bisect"
 
 #
 #
+
+test_expect_success '--bisect can default to good/bad refs' '
+       git update-ref refs/bisect/bad c3 &&
+       good=$(git rev-parse b1) &&
+       git update-ref refs/bisect/good-$good $good &&
+       good=$(git rev-parse c1) &&
+       git update-ref refs/bisect/good-$good $good &&
+
+       # the only thing between c3 and c1 is c2
+       git rev-parse c2 >expect &&
+       git rev-list --bisect >actual &&
+       test_cmp expect actual
+'
+
 test_done