--- a/tests/test-revert.t Wed Jun 25 17:24:18 2014 +0100
+++ b/tests/test-revert.t Wed Jun 25 17:03:55 2014 +0100
@@ -551,3 +551,24 @@
$ cd ..
+Test revert --all to parent content
+-----------------------------------
+
+(setup from reference repo)
+
+ $ cp -r revert-ref revert-parent-all
+ $ cd revert-parent-all
+
+check revert output
+
+ $ hg revert --all
+
+Compare resulting directory with revert target.
+
+The diff is filtered to include change only. The only difference should be
+additional `.orig` backup file when applicable.
+
+ $ python ../dircontent.py > ../content-parent-all.txt
+ $ cd ..
+ $ diff -U 0 -- content-parent.txt content-parent-all.txt | grep _
+ [1]