       """
     end) =~ "warning: unused alias List"
   after
-    purge [Sample]
+    purge Sample
   end
 
   test :unused_inside_dynamic_module do

      """
    end) =~ "nofile:1: warning: @typedoc provided but no type follows it"
  after
    purge [Sample]
  end

  test :doc_with_no_function do

      {_arg, _arg} = {1, 1}
      """
    end) =~ "warning: the underscored variable \"_arg\" appears more than once in a match"
  end

  test :unused_function do
