class_properties_test.cpp

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//  (C) Copyright Gennadiy Rozental 2003-2008.
//  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)

//  See http://www.boost.org/libs/test for the library home page.
//
//  File        : $RCSfile$
//
//  Version     : $Revision: 49313 $
//
//  Description : unit test for class properties facility
// ***************************************************************************

// Boost.Test
#define BOOST_TEST_MODULE Class Properties test
#include <boost/test/unit_test.hpp>
#include <boost/test/utils/class_properties.hpp>

// STL
#include <vector>

using namespace boost::unit_test;

//____________________________________________________________________________//

struct A {
    operator bool() const { return true; }
} a;

struct B { 
    int foo() const { return 1; }
    int foo()       { return 2; }

    operator int() const { return 1; }
};

BOOST_READONLY_PROPERTY( B*, (C) ) p_b_ptr;

class C {
public:
    static void init()
    {
        p_b_ptr.value = new B;
    }
};

BOOST_READONLY_PROPERTY( A*, (D)(E) ) p_a_ptr;

class D {
public:
    static void init()
    {
        p_a_ptr.value = new A;
    }
};

class E {
public:
    static void reset()
    {
        delete p_a_ptr;
        p_a_ptr.value = new A;
    }
};

BOOST_AUTO_TEST_CASE( test_readonly_property )
{
    readonly_property<int> p_zero;
    readonly_property<int> p_one( 1 );
    readonly_property<int> p_two( 2 );

    readonly_property<bool> p_true( true );
    readonly_property<bool> p_false( false );
    readonly_property<std::string> p_str( "abcd" );
    readonly_property<std::string> p_str2( "abc" );

    readonly_property<B> p_b;
    readonly_property<A> p_a;

    BOOST_CHECK( p_one );
    BOOST_CHECK( !!p_one );

    int i = p_one;

    BOOST_CHECK( p_one == i );

    double d = p_one;

    BOOST_CHECK( p_one == d );

    BOOST_CHECK( p_one != 0 );
    BOOST_CHECK( 0 != p_one );
    BOOST_CHECK( !(p_one == 0) );
    BOOST_CHECK( !(0 == p_one) );

    float fzero = 0;

    BOOST_CHECK( p_one != fzero );
    BOOST_CHECK( fzero != p_one );

    BOOST_CHECK( p_one >= 1 );
    BOOST_CHECK( 2 > p_one  );

    BOOST_CHECK( !(p_one == p_two) );
    BOOST_CHECK( p_one != p_two );
    BOOST_CHECK( p_one < p_two );

    BOOST_CHECK_EQUAL( p_zero, 0 );

    BOOST_CHECK( (p_one - 1) == 0 );
    BOOST_CHECK( (-p_one + 1) == 0 );

    BOOST_CHECK( p_true );
    BOOST_CHECK( !p_false );

    BOOST_CHECK( (i > 0) && p_true );
    BOOST_CHECK( p_true && (i > 0) );
    BOOST_CHECK( (i > 0) || p_false );
    BOOST_CHECK( p_false || (i > 0) );

    BOOST_CHECK( a && p_true );
    BOOST_CHECK( a || p_true );

    BOOST_CHECK( p_true && a );
    BOOST_CHECK( p_true && a );

    std::string s( "abcd" );

    BOOST_CHECK( p_str == s );
    BOOST_CHECK( s == p_str );
    BOOST_CHECK( p_str2 != p_str );

    BOOST_CHECK_EQUAL( p_b->foo(), 1 );

    BOOST_CHECK_EQUAL( p_one ^ 3, 2 );
    BOOST_CHECK_EQUAL( p_two / 2, 1 );

    BOOST_CHECK( !p_b_ptr );
    C::init();
    BOOST_CHECK( p_b_ptr );

    BOOST_CHECK( !p_a_ptr );
    D::init();
    BOOST_CHECK( p_a_ptr );
    E::reset();
    BOOST_CHECK( p_a_ptr );
}

//____________________________________________________________________________//

BOOST_AUTO_TEST_CASE( test_readwrite_property )
{
    readwrite_property<int> p_int;

    BOOST_CHECK( !p_int );
    BOOST_CHECK( p_int == 0 );
    BOOST_CHECK( p_int != 1 );

    BOOST_CHECK( p_int < 5 );
    BOOST_CHECK( p_int >= -5 );

    p_int.value = 2;

    BOOST_CHECK( p_int == 2 );
    BOOST_CHECK( p_int );

    p_int.set( 3 );

    BOOST_CHECK( p_int == 3 );

    readwrite_property<B> p_bb1;

    BOOST_CHECK_EQUAL( p_bb1->foo(), 2 );

    readwrite_property<B> const p_bb2;

    BOOST_CHECK_EQUAL( p_bb2->foo(), 1 );
}

//____________________________________________________________________________//

// EOF