anchor.diff:  %% @author Thorsten Schuett <schuett@zib.de>
   %% @doc    variable substitutions for tester
   %% @end
  -%% @version $Id: tester_value_creator.erl 6796 2014-06-10 13:30:13Z schuett $
   -module(tester_variable_substitutions).
   -author('schuett@zib.de').
  --vsn('$Id: tester_value_creator.erl 6796 2014-06-10 13:30:13Z schuett $').
   
   -include("unittest.hrl").
   -include("tester.hrl").
  
positive.code: %  @copyright 2010-2013 Zuse Institute Berlin
  
  %   Licensed under the Apache License, Version 2.0 (the "License");
  %   you may not use this file except in compliance with the License.
  
negative.code: 
  substitute({tuple, Types}, Substitutions) ->
      {tuple, substitute(Types, Substitutions)};
  
  substitute({builtin_type, Type}, _Substitutions) ->
      {builtin_type, Type};
  
  substitute({union, _Line, Types}, Substitutions) ->
      {union, substitute(Types, Substitutions)};
  