diff --git a/tests/test-backout.out b/tests/test-backout.out
new file mode 100644
--- /dev/null
+++ b/tests/test-backout.out
@@ -0,0 +1,19 @@
+# basic operation
+adding a
+changeset 2:b38a34ddfd9f backs out changeset 1:a820f4f40a57
+a
+# file that was removed is recreated
+adding a
+adding a
+changeset 2:44cd84c7349a backs out changeset 1:76862dcce372
+content
+# backout of backout is as if nothing happened
+removing a
+changeset 3:0dd8a0ed5e99 backs out changeset 2:44cd84c7349a
+cat: a: No such file or directory
+# backout with merge
+adding a
+changeset 3:6c77ecc28460 backs out changeset 1:314f55b1bf23
+merging with changeset 2:b66ea5b77abb
+merging a
+line 1