catch2/include/internal/catch_assertionresult.h

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/*
* Created by Phil on 28/10/2010.
* 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)
*/
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#ifndef TWOBLUECUBES_CATCH_ASSERTIONRESULT_H_INCLUDED
#define TWOBLUECUBES_CATCH_ASSERTIONRESULT_H_INCLUDED
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#include <string>
#include "catch_result_type.h"
namespace Catch {
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struct STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison;
struct DecomposedExpression
{
virtual ~DecomposedExpression() {}
virtual bool isBinaryExpression() const {
return false;
}
virtual std::string reconstructExpression() const = 0;
std::string reconstructExpressionImpl( std::string const& lhs, std::string const& rhs, std::string const& op ) const {
std::string dest;
char delim = lhs.size() + rhs.size() < 40 &&
lhs.find('\n') == std::string::npos &&
rhs.find('\n') == std::string::npos ? ' ' : '\n';
dest.reserve( 7 + lhs.size() + rhs.size() );
// 2 for spaces around operator
// 2 for operator
// 2 for parentheses (conditionally added later)
// 1 for negation (conditionally added later)
dest = lhs;
dest += delim;
dest += op;
dest += delim;
dest += rhs;
return dest;
}
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// Only simple binary comparisons can be decomposed.
// If more complex check is required then wrap sub-expressions in parentheses.
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator + ( T const& );
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator - ( T const& );
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator * ( T const& );
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator / ( T const& );
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator % ( T const& );
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator && ( T const& );
template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator || ( T const& );
};
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struct AssertionInfo
{
AssertionInfo() {}
AssertionInfo( std::string const& _macroName,
SourceLineInfo const& _lineInfo,
std::string const& _capturedExpression,
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ResultDisposition::Flags _resultDisposition );
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std::string macroName;
SourceLineInfo lineInfo;
std::string capturedExpression;
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ResultDisposition::Flags resultDisposition;
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};
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struct AssertionResultData
{
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AssertionResultData() : decomposedExpression( CATCH_NULL )
, resultType( ResultWas::Unknown )
, negated( false )
, parenthesized( false ) {}
void negate( bool parenthesize ) {
negated = !negated;
parenthesized = parenthesize;
if( resultType == ResultWas::Ok )
resultType = ResultWas::ExpressionFailed;
else if( resultType == ResultWas::ExpressionFailed )
resultType = ResultWas::Ok;
}
std::string const& reconstructExpression() const {
if( decomposedExpression != CATCH_NULL ) {
reconstructedExpression = decomposedExpression->reconstructExpression();
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if( parenthesized ) {
reconstructedExpression.insert( 0, 1, '(' );
reconstructedExpression.append( 1, ')' );
}
if( negated ) {
reconstructedExpression.insert( 0, 1, '!' );
}
decomposedExpression = CATCH_NULL;
}
return reconstructedExpression;
}
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mutable DecomposedExpression const* decomposedExpression;
mutable std::string reconstructedExpression;
std::string message;
ResultWas::OfType resultType;
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bool negated;
bool parenthesized;
};
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class AssertionResult {
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public:
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AssertionResult();
AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
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~AssertionResult();
# ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
AssertionResult( AssertionResult const& ) = default;
AssertionResult( AssertionResult && ) = default;
AssertionResult& operator = ( AssertionResult const& ) = default;
AssertionResult& operator = ( AssertionResult && ) = default;
# endif
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bool isOk() const;
bool succeeded() const;
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ResultWas::OfType getResultType() const;
bool hasExpression() const;
bool hasMessage() const;
std::string getExpression() const;
std::string getExpressionInMacro() const;
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bool hasExpandedExpression() const;
std::string getExpandedExpression() const;
std::string getMessage() const;
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SourceLineInfo getSourceInfo() const;
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std::string getTestMacroName() const;
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void discardDecomposedExpression() const;
void expandDecomposedExpression() const;
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protected:
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AssertionInfo m_info;
AssertionResultData m_resultData;
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};
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} // end namespace Catch
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#endif // TWOBLUECUBES_CATCH_ASSERTIONRESULT_H_INCLUDED