t5510: prepare test refs more straightforwardly

diff --git a/t/t6009-rev-list-parent.sh b/t/t6009-rev-list-parent.sh
index 30507407ff6375f96c632c7c3f62ae3d338ed5ea..66cda17ef342a2791ce7bac873eecfd4cf319faf 100755 (executable)
--- a/t/t6009-rev-list-parent.sh
+++ b/t/t6009-rev-list-parent.sh
@@ -133,4 +133,17 @@ test_expect_success 'dodecapus' '
        check_revlist "--min-parents=13" &&
        check_revlist "--min-parents=4 --max-parents=11" tetrapus
 '
+
+test_expect_success 'ancestors with the same commit time' '
+
+       test_tick_keep=$test_tick &&
+       for i in 1 2 3 4 5 6 7 8; do
+               test_tick=$test_tick_keep
+               test_commit t$i
+       done &&
+       git rev-list t1^! --not t$i >result &&
+       >expect &&
+       test_cmp expect result
+'
+
 test_done