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3rdparty/boost_1_81_0/libs/statechart/test/InvalidResultCopyTest.cpp 1.6 KB
73ef4ff3   Hu Chunming   提交三方库
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  //////////////////////////////////////////////////////////////////////////////
  // Copyright 2005-2006 Andreas Huber Doenni
  // Distributed under the Boost Software License, Version 1.0. (See accompany-
  // ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //////////////////////////////////////////////////////////////////////////////
  
  
  
  #include <libs/statechart/test/ThrowingBoostAssert.hpp>
  #include <boost/statechart/state_machine.hpp>
  #include <boost/statechart/event.hpp>
  #include <boost/statechart/simple_state.hpp>
  #include <boost/statechart/custom_reaction.hpp>
  #include <boost/statechart/result.hpp>
  
  #include <boost/test/test_tools.hpp>
  
  #include <stdexcept> // std::logic_error
  
  namespace sc = boost::statechart;
  
  
  
  struct E : sc::event< E > {};
  
  struct A;
  struct InvalidResultCopyTest :
    sc::state_machine< InvalidResultCopyTest, A > {};
  
  struct A : sc::simple_state< A, InvalidResultCopyTest >
  {
    typedef sc::custom_reaction< E > reactions;
  
    sc::result react( const E & )
    {
      sc::result r( discard_event() );
      sc::result rCopy1( r );
      // Ensure the copy is consumed so that we're not accidentally tripping
      // the assert in the sc::result dtor
      sc::detail::result_utility::get_result( rCopy1 );
  
      // We must not make more than one copy of a result value
      sc::result rCopy2( r );
      return rCopy2;
    }
  };
  
  
  
  int test_main( int, char* [] )
  {
    InvalidResultCopyTest machine;
    machine.initiate();
  
    #ifdef NDEBUG
      BOOST_REQUIRE_NO_THROW( machine.process_event( E() ) );
    #else
      BOOST_REQUIRE_THROW( machine.process_event( E() ), std::logic_error );
    #endif
  
    return 0;
  }