--- a/tests/test-fileset.t	Wed Aug 15 18:04:50 2012 +0200
+++ b/tests/test-fileset.t	Wed Aug 15 21:44:00 2012 +0200
@@ -76,3 +76,8 @@
   $ fileset 'copied()'
   c1
 
+Test files properties
+
+  >>> file('bin', 'wb').write('\0a')
+  $ fileset 'binary()'
+