diff --git a/tests/test-narrow-widen.t b/tests/test-narrow-widen.t
--- a/tests/test-narrow-widen.t
+++ b/tests/test-narrow-widen.t
@@ -106,6 +106,12 @@
   I path:inside
   I path:wider/f
 
+  $ ls
+  inside
+  $ cat wider/f
+  cat: wider/f: $ENOENT$
+  [1]
+
 Pull down the newly added upstream revision.
 
   $ hg pull