--- a/tests/test-rhg.t	Tue Oct 06 03:25:15 2020 +0200
+++ b/tests/test-rhg.t	Tue Nov 24 18:52:38 2020 +0100
@@ -124,3 +124,19 @@
   revlogv1
   sparserevlog
   store
+
+  $ echo indoor-pool >> .hg/requires
+  $ rhg files
+  [252]
+
+  $ rhg cat -r 1 copy_of_original
+  [252]
+
+  $ rhg debugrequirements
+  dotencode
+  fncache
+  generaldelta
+  revlogv1
+  sparserevlog
+  store
+  indoor-pool