diff --git a/test/vader_includes/vader_setup.vader b/test/vader_includes/vader_setup.vader
index b04518b..6e7d5b3 100644
--- a/test/vader_includes/vader_setup.vader
+++ b/test/vader_includes/vader_setup.vader
@@ -67,8 +67,20 @@ Before (Define functions):
 
   " Write current file: helper to hide `set bt=`
   function! WriteMe()
-    set bt=
+    set buftype=
     write %
   endfunction
 
+  " print a command output to the buffer
+  function! PrintCommand(cmd)
+    redir => message
+    silent execute a:cmd
+    redir END
+    if empty(message)
+      Log 'no output'
+    else
+      silent put=message
+    endif
+  endfunction
+
 # vim: ft=vim