91 lines
2.9 KiB
Plaintext
91 lines
2.9 KiB
Plaintext
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// (C) Copyright Gennadiy Rozental 2001.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/test for the library home page.
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//
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/// @file
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/// Enhanced result for test predicate that include message explaining failure
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// ***************************************************************************
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#ifndef BOOST_TEST_PREDICATE_RESULT_HPP_012705GER
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#define BOOST_TEST_PREDICATE_RESULT_HPP_012705GER
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// Boost.Test
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#include <boost/test/utils/class_properties.hpp>
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#include <boost/test/utils/wrap_stringstream.hpp>
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#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
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// Boost
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#include <boost/shared_ptr.hpp>
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#include <boost/detail/workaround.hpp>
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// STL
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#include <cstddef> // for std::size_t
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#include <boost/test/detail/suppress_warnings.hpp>
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//____________________________________________________________________________//
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namespace boost {
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namespace test_tools {
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// ************************************************************************** //
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// ************** assertion_result ************** //
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// ************************************************************************** //
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//!@brief Type used for storing the result of an assertion.
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class BOOST_TEST_DECL assertion_result {
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//!@internal
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typedef unit_test::const_string const_string;
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//!@internal
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struct dummy { void nonnull() {} };
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//!@internal
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typedef void (dummy::*safe_bool)();
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public:
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// Constructor
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assertion_result( bool pv_ )
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: p_predicate_value( pv_ )
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{}
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template<typename BoolConvertable>
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assertion_result( BoolConvertable const& pv_ ) : p_predicate_value( !!pv_ ) {}
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// Access methods
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bool operator!() const { return !p_predicate_value; }
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void operator=( bool pv_ ) { p_predicate_value.value = pv_; }
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operator safe_bool() const { return !!p_predicate_value ? &dummy::nonnull : 0; }
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// Public properties
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BOOST_READONLY_PROPERTY( bool, (assertion_result) ) p_predicate_value;
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// Access methods
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bool has_empty_message() const { return !m_message; }
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wrap_stringstream& message()
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{
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if( !m_message )
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m_message.reset( new wrap_stringstream );
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return *m_message;
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}
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const_string message() const { return !m_message ? const_string() : const_string( m_message->str() ); }
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private:
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// Data members
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shared_ptr<wrap_stringstream> m_message;
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};
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typedef assertion_result predicate_result;
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} // namespace test_tools
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} // namespace boost
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_PREDICATE_RESULT_HPP_012705GER
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