/*
  SearchPathSplitter(Test)  -  iterating a search path specification

  Copyright (C)         Lumiera.org
    2011,               Hermann Vosseler <Ichthyostega@web.de>

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 2 of
  the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

* *****************************************************/

/** @file search-path-splitter-test.cpp
 ** unit test \ref SearchPathSplitter_test
 */


#include "lib/test/run.hpp"
#include "lib/test/test-helper.hpp"
#include "lib/format-cout.hpp"

#include "lib/searchpath.hpp"




namespace lib {
namespace test {
  
  
  /**************************************************//**
   * @test verify splitting a search path specification
   *       and retrieving the components by iteration.
   *       Embedded \c $ORIGIN tokens get resolved
   *       to the absolute path of this executable.
   */
  class SearchPathSplitter_test : public Test
    {
      void
      run (Arg)
        {
          walkSimplePaths ();
          resolveEmbeddedOriginToken ();
        }
      
      
      void
      walkSimplePaths ()
        {
          walk ("");
          walk (":");
          walk ("a:");
          walk (":a");
          walk ("a:b");
          walk (":a:b:c:");
          walk (" d : e f");
          walk ("/usr/bin:/usr/lib");
          
          SearchPathSplitter sp("");
          VERIFY_ERROR (ITER_EXHAUST, sp.next() );
        }
      
      void
      walk (string spec)
        {
          SearchPathSplitter path(spec);
          while (path)
            cout << "➢➢" << path.next() << endl;
        }
      
      
      
      void
      resolveEmbeddedOriginToken ()
        {
          fsys::path exePath (findExePath());
          string expected = (exePath.remove_leaf() / "modules").string();
          
          SearchPathSplitter sp("xyz:$ORIGIN/modules:abc");
          CHECK ("xyz" == sp.next());
          CHECK (sp.next() == expected);
          CHECK ("abc" == sp.next());
          CHECK (!sp.isValid());
        }
    };
  
  
  LAUNCHER (SearchPathSplitter_test, "unit common");
  
  
}} // namespace lib::test
