TriggeredOutbound.h

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

   begin                : Thu Aug 01 2006
   copyright            : (C) 2002-2010 by Ewald Arnold
   email                : mockpp at ewald-arnold dot de

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser 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 Lesser General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

#ifndef MOCKPP_TriggeredOutbound_H
#define MOCKPP_TriggeredOutbound_H

#include <mockpp/mockpp.h> // always first

#include <mockpp/constraint/TriggeredConstraint.h>
#include <mockpp/compat/Formatter.h>
#include <mockpp/ReturnObjectList.h>


MOCKPP_NS_START


template <typename T>
class TriggeredOutbound : public TriggeredConstraint<T>
{
  public:

    TriggeredOutbound( const T &retArg )
      : returnObjects(MOCKPP_PCHAR("TriggeredOutbound/returnObjects"), 0)
      , back_ref(0)
    {
      addOutboundObject(retArg);
    }

    template <class I>
    TriggeredOutbound( I items, I end )
      : returnObjects(MOCKPP_PCHAR("TriggeredOutbound/returnObjects"), 0)
      , back_ref(0)
    {
      addOutboundObject(items, end);
    }

    void addOutboundObject( const T &retArg )
    {
      returnObjects.addObjectToReturn(retArg);
    }

    template <class I>
    TriggeredOutbound& addOutboundObject(I items, I end)
    {
      for ( /* -- */; items != end; ++items)
        addOutboundObject(*items);
      return *this;
    }

    virtual ~TriggeredOutbound()
    {}

    virtual bool eval( const T &arg ) const
    {
      back_ref = const_cast<T*>(&arg);
      return true;
    }

    virtual bool verify( const T & /*arg*/ ) const
    {
      return returnObjects.hasMoreObjects() == 0;
    }

    virtual String describeTo( String &buffer ) const
    {
      String fmt = MOCKPP_PCHAR("stores %1");
      fmt << returnObjects.toString();
      buffer += fmt;
      return buffer;
    }

    virtual void trigger()
    {
      MOCKPP_ASSERT_TRUE(back_ref != 0);
     *back_ref = returnObjects.nextReturnObject();
      back_ref = 0; // use reference only ONCE
    }

  private:

    mutable ReturnObjectList<T>   returnObjects;
    mutable T                    *back_ref;
};


MOCKPP_NS_END


#endif // MOCKPP_TriggeredOutbound_H

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