mirror of
https://github.com/catchorg/Catch2.git
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481 lines
15 KiB
C++
481 lines
15 KiB
C++
/*
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* Created by Phil on 18/10/2010.
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* Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef TWOBLUECUBES_CATCH_CAPTURE_HPP_INCLUDED
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#define TWOBLUECUBES_CATCH_CAPTURE_HPP_INCLUDED
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#include "catch_resultinfo_builder.hpp"
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#include "catch_tostring.hpp"
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#include "catch_resultinfo.hpp"
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#include "catch_result_type.h"
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#include "catch_interfaces_capture.h"
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#include "catch_debugger.hpp"
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#include "catch_evaluate.hpp"
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#include "catch_context.h"
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#include "catch_common.h"
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#include <sstream>
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namespace Catch
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{
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struct TestFailureException{};
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struct DummyExceptionType_DontUse{};
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template<typename T>
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class Expression
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{
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void operator = ( const Expression& );
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public:
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///////////////////////////////////////////////////////////////////////////
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Expression
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(
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ResultInfoBuilder& result,
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T lhs
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)
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: m_result( result ),
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m_lhs( lhs )
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{
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator ==
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(
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const RhsT& rhs
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)
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{
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return m_result.captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator !=
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(
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const RhsT& rhs
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)
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{
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return m_result.captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator <
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(
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const RhsT& rhs
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)
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{
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return m_result.captureExpression<Internal::IsLessThan>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator >
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(
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const RhsT& rhs
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)
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{
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return m_result.captureExpression<Internal::IsGreaterThan>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator <=
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(
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const RhsT& rhs
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)
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{
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return m_result.captureExpression<Internal::IsLessThanOrEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator >=
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(
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const RhsT& rhs
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)
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{
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return m_result.captureExpression<Internal::IsGreaterThanOrEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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ResultInfoBuilder& operator ==
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(
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bool rhs
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)
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{
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return m_result.captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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ResultInfoBuilder& operator !=
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(
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bool rhs
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)
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{
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return m_result.captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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operator ResultInfoBuilder&
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()
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{
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return m_result.captureBoolExpression( m_lhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator +
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(
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const RhsT&
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);
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator -
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(
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const RhsT&
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);
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private:
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ResultInfoBuilder& m_result;
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T m_lhs;
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};
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template<typename LhsT>
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class PtrExpression
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{
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public:
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///////////////////////////////////////////////////////////////////////////
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PtrExpression
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(
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ResultInfoBuilder& result,
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const LhsT* lhs
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)
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: m_result( &result ),
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m_lhs( lhs )
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{}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator ==
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(
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const RhsT* rhs
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)
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{
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return m_result->captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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// This catches NULL
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ResultInfoBuilder& operator ==
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(
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LhsT* rhs
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)
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{
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return m_result->captureExpression<Internal::IsEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename RhsT>
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ResultInfoBuilder& operator !=
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(
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const RhsT* rhs
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)
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{
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return m_result->captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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// This catches NULL
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ResultInfoBuilder& operator !=
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(
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LhsT* rhs
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)
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{
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return m_result->captureExpression<Internal::IsNotEqualTo>( m_lhs, rhs );
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}
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///////////////////////////////////////////////////////////////////////////
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operator ResultInfoBuilder&
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()
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{
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return m_result->captureBoolExpression( m_lhs );
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}
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private:
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ResultInfoBuilder* m_result;
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const LhsT* m_lhs;
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};
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class ResultBuilder
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{
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public:
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///////////////////////////////////////////////////////////////////////////
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ResultBuilder
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(
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const SourceLineInfo& lineInfo,
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const char* macroName,
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const char* expr = "",
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bool isNot = false
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)
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: m_result( expr, isNot, lineInfo, macroName ),
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m_messageStream()
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{}
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///////////////////////////////////////////////////////////////////////////
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template<typename T>
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Expression<const T&> operator->*
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(
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const T & operand
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)
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{
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Expression<const T&> expr( m_result, operand );
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return expr;
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}
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///////////////////////////////////////////////////////////////////////////
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Expression<const char*> operator->*
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(
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const char* const& operand
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)
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{
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Expression<const char*> expr( m_result, operand );
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return expr;
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename T>
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PtrExpression<T> operator->*
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(
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const T* operand
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)
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{
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PtrExpression<T> expr( m_result, operand );
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return expr;
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename T>
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PtrExpression<T> operator->*
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(
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T* operand
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)
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{
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PtrExpression<T> expr( m_result, operand );
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return expr;
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}
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///////////////////////////////////////////////////////////////////////////
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Expression<bool> operator->*
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(
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bool value
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)
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{
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Expression<bool> expr( m_result, value );
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return expr;
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename T>
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ResultBuilder& operator <<
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(
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const T & value
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)
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{
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m_messageStream << Catch::toString( value );
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return *this;
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename MatcherT, typename ArgT>
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ResultBuilder& acceptMatcher
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(
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const MatcherT& matcher,
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const ArgT& arg,
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const std::string& matcherCallAsString
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)
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{
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std::string matcherAsString = Catch::toString( matcher );
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if( matcherAsString == "{?}" )
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matcherAsString = matcherCallAsString;
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m_result.setLhs( Catch::toString( arg ) );
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m_result.setRhs( matcherAsString );
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m_result.setOp( "matches" );
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m_result.setResultType( matcher( arg ) ? ResultWas::Ok : ResultWas::ExpressionFailed );
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return *this;
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}
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///////////////////////////////////////////////////////////////////////////
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template<typename MatcherT, typename ArgT>
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ResultBuilder& acceptMatcher
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(
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const MatcherT& matcher,
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ArgT* arg,
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const std::string& matcherCallAsString
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)
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{
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std::string matcherAsString = Catch::toString( matcher );
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if( matcherAsString == "{?}" )
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matcherAsString = matcherCallAsString;
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m_result.setLhs( Catch::toString( arg ) );
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m_result.setRhs( matcherAsString );
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m_result.setOp( "matches" );
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m_result.setResultType( matcher( arg ) ? ResultWas::Ok : ResultWas::ExpressionFailed );
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return *this;
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}
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///////////////////////////////////////////////////////////////////////////
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ResultBuilder& setResultType
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(
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ResultWas::OfType resultType
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)
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{
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m_result.setResultType( resultType );
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return *this;
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}
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///////////////////////////////////////////////////////////////////////////
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operator ResultInfoBuilder&
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()
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{
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m_result.setMessage( m_messageStream.str() );
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return m_result;
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}
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private:
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ResultInfoBuilder m_result;
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std::ostringstream m_messageStream;
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};
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class ScopedInfo
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{
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public:
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ScopedInfo() : m_oss() {
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Context::getResultCapture().pushScopedInfo( this );
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}
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~ScopedInfo() {
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Context::getResultCapture().popScopedInfo( this );
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}
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template<typename T>
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ScopedInfo& operator << ( const T& value ) {
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m_oss << value;
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return *this;
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}
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std::string getInfo () const {
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return m_oss.str();
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}
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private:
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std::ostringstream m_oss;
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};
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// This is just here to avoid compiler warnings with macro constants
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inline bool isTrue( bool value ){ return value; }
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} // end namespace Catch
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_ACCEPT_EXPR( expr, stopOnFailure, originalExpr ) \
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if( Catch::ResultAction::Value internal_catch_action = Catch::Context::getResultCapture().acceptExpression( expr ) ) \
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{ \
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if( internal_catch_action == Catch::ResultAction::DebugFailed ) BreakIntoDebugger(); \
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if( Catch::isTrue( stopOnFailure ) ) throw Catch::TestFailureException(); \
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if( Catch::isTrue( false ) ){ bool this_is_here_to_invoke_warnings = ( originalExpr ); Catch::isTrue( this_is_here_to_invoke_warnings ); } \
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}
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_TEST( expr, isNot, stopOnFailure, macroName ) \
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do{ try{ \
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INTERNAL_CATCH_ACCEPT_EXPR( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr, isNot )->*expr ), stopOnFailure, expr ); \
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}catch( Catch::TestFailureException& ){ \
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throw; \
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} catch( ... ){ \
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INTERNAL_CATCH_ACCEPT_EXPR( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr ) << Catch::Context::getExceptionTranslatorRegistry().translateActiveException() ).setResultType( Catch::ResultWas::ThrewException ), false, expr ); \
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throw; \
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}}while( Catch::isTrue( false ) )
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_IF( expr, isNot, stopOnFailure, macroName ) \
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INTERNAL_CATCH_TEST( expr, isNot, stopOnFailure, macroName ); \
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if( Catch::Context::getResultCapture().getLastResult()->ok() )
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_ELSE( expr, isNot, stopOnFailure, macroName ) \
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INTERNAL_CATCH_TEST( expr, isNot, stopOnFailure, macroName ); \
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if( !Catch::Context::getResultCapture().getLastResult()->ok() )
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_NO_THROW( expr, stopOnFailure, macroName ) \
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try \
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{ \
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expr; \
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INTERNAL_CATCH_ACCEPT_EXPR( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr ).setResultType( Catch::ResultWas::Ok ), stopOnFailure, false ); \
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} \
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catch( ... ) \
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{ \
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INTERNAL_CATCH_ACCEPT_EXPR( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr ) << Catch::Context::getExceptionTranslatorRegistry().translateActiveException() ).setResultType( Catch::ResultWas::ThrewException ), stopOnFailure, false ); \
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}
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_THROWS( expr, exceptionType, stopOnFailure, macroName ) \
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try \
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{ \
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expr; \
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INTERNAL_CATCH_ACCEPT_EXPR( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr ).setResultType( Catch::ResultWas::DidntThrowException ), stopOnFailure, false ); \
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} \
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catch( Catch::TestFailureException& ) \
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{ \
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throw; \
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} \
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catch( exceptionType ) \
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{ \
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INTERNAL_CATCH_ACCEPT_EXPR( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr ).setResultType( Catch::ResultWas::Ok ), stopOnFailure, false ); \
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}
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_THROWS_AS( expr, exceptionType, stopOnFailure, macroName ) \
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INTERNAL_CATCH_THROWS( expr, exceptionType, stopOnFailure, macroName ) \
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catch( ... ) \
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{ \
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INTERNAL_CATCH_ACCEPT_EXPR( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #expr ) << Catch::Context::getExceptionTranslatorRegistry().translateActiveException() ).setResultType( Catch::ResultWas::ThrewException ), stopOnFailure, false ); \
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}
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_MSG( reason, resultType, stopOnFailure, macroName ) \
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Catch::Context::getResultCapture().acceptExpression( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName ) << reason ).setResultType( resultType ) );
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CATCH_SCOPED_INFO( log ) \
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Catch::ScopedInfo INTERNAL_CATCH_UNIQUE_NAME( info ); \
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INTERNAL_CATCH_UNIQUE_NAME( info ) << log
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///////////////////////////////////////////////////////////////////////////////
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#define INTERNAL_CHECK_THAT( arg, matcher, stopOnFailure, macroName ) \
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do{ try{ \
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INTERNAL_CATCH_ACCEPT_EXPR( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #arg " " #matcher, false ).acceptMatcher( matcher, arg, #matcher ) ), stopOnFailure, false ); \
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}catch( Catch::TestFailureException& ){ \
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throw; \
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} catch( ... ){ \
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INTERNAL_CATCH_ACCEPT_EXPR( ( Catch::ResultBuilder( CATCH_INTERNAL_LINEINFO, macroName, #arg " " #matcher ) << Catch::Context::getExceptionTranslatorRegistry().translateActiveException() ).setResultType( Catch::ResultWas::ThrewException ), false, false ); \
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throw; \
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}}while( Catch::isTrue( false ) )
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#endif // TWOBLUECUBES_CATCH_CAPTURE_HPP_INCLUDED
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