diff --git a/tests/test-parents.out b/tests/test-parents.out
--- a/tests/test-parents.out
+++ b/tests/test-parents.out
@@ -26,3 +26,19 @@ user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     ab
 
+% hg parents -r 2 ../a
+abort: ../a not under root
+% cd dir; hg parents -r 2 ../a
+changeset:   0:b6a1406d8886
+user:        test
+date:        Thu Jan 01 00:00:00 1970 +0000
+summary:     ab
+
+% hg parents -r 2 path:a
+changeset:   0:b6a1406d8886
+user:        test
+date:        Thu Jan 01 00:00:00 1970 +0000
+summary:     ab
+
+% hg parents -r 2 glob:a
+abort: can only specify an explicit file name