catch2/Test/TrickyTests.cpp

/*
 *  TrickyTests.cpp
 *  Catch - Test
 *
 *  Created by Phil on 09/11/2010.
 *  Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
 *
 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 *
 */

#include "../catch.hpp"

namespace Catch
{
    template<>
    std::string toString<std::pair<int, int> >( const std::pair<int, int>& value )
    {
        std::ostringstream oss;
        oss << "std::pair( " << value.first << ", " << value.second << " )";
        return oss.str();
        
    }
}

TEST_CASE( "succeeding/Tricky/std::pair", "Parsing a std::pair" )
{
    std::pair<int, int> aNicePair( 1, 2 );

    // !TBD: would be nice if this could compile without the extra parentheses
    REQUIRE( (std::pair<int, int>( 1, 2 )) == aNicePair );
    
}

TEST_CASE( "succeeding/Tricky/complex lhs", "Where the LHS is not a simple value" )
{
    int a = 1;
    int b = 2;

    // This only captures part of the expression, but issues a warning about the rest
    REQUIRE( a == 2 || b == 2 );
}

struct Opaque
{
    int val;
    bool operator ==( const Opaque& o )
    {
        return val == o.val;
    }
};

TEST_CASE( "failing/Tricky/non streamable type", "A failing expression with a non streamable type is still captured" )
{
    
    Opaque o1, o2;
    o1.val = 7;
    o2.val = 8;
  
    CHECK( &o1 == &o2 );
    CHECK( o1 == o2 );
}