LUMIERA.clone/tests/core/proc/control/argument-tuple-accept-test.cpp

/*
  ArgumentTupleAccept(Test)  -  verify synthesising a bind(...) function

  Copyright (C)         Lumiera.org
    2009,               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.

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


#include "lib/test/run.hpp"
#include "lib/test/test-helper.hpp"
#include "proc/control/argument-tuple-accept.hpp"
#include "lib/meta/function.hpp"
#include "lib/meta/tuple.hpp"
#include "lib/time/diagnostics.hpp"

#include <tr1/functional>
#include <iostream>

using std::cout;
using std::endl;


namespace proc {
namespace control {
namespace test    {
  
  using lib::test::showSizeof;
  using lib::test::randTime;
  
  using lib::time::TimeVar;
  using std::tr1::function;
  using lib::meta::FunctionSignature;
  using lib::meta::Tuple;
  
  
  
  
  
  
  namespace { // build a test dummy class....
    
    template<typename SIG>
    struct _Tup
      {
        typedef typename FunctionSignature< function<SIG> >::Args Args;
        typedef typename FunctionSignature< function<SIG> >::Ret  Ret;
        typedef Tuple<Args> Ty;
      };
    
    
    template<typename SIG>
    class TestClass
      : public AcceptArgumentBinding< SIG                     // to derive the desired signature
                                    , TestClass<SIG>          // the target class providing the implementation
                                    , typename _Tup<SIG>::Ty  // base class to inherit from
                                    >
      {
        typedef typename _Tup<SIG>::Ty  ATuple;
        typedef typename _Tup<SIG>::Ret RetType;
        
      public:
        
        RetType
        bindArg (ATuple const& tuple)
          {
            static_cast<ATuple&> (*this) = tuple;
            return RetType();
          }
      };
    
    
  } // test-helper implementation
  
  
  
  
  
  
  /*************************************************************
   * @test Build a test object, which accepts a bind(...) call
   *       with specifically typed arguments.
   *       
   * @see  control::CommandArgumentHolder
   */
  class ArgumentTupleAccept_test : public Test
    {
      
      virtual void
      run (Arg) 
        {
          TestClass<void()> testVoid;
          TestClass<int(TimeVar,int)> testTime;
          
          testVoid.bind();
          testTime.bind(randTime(),23);
          
          cout << showSizeof(testVoid) << endl;
          cout << showSizeof(testTime) << endl;
          
          cout << testTime.getHead() << endl;
          CHECK (23 == testTime.getTail().getHead());
        }
      
    };
  
  
  
  /** Register this test class... */
  LAUNCHER (ArgumentTupleAccept_test, "unit controller");
  
  
}}} // namespace proc::control::test