Method getExpression

tests/catch.h:7264–7269

    }

    std::string AssertionResult::getExpression() const {
        if( isFalseTest( m_info.resultDisposition ) )
            return "!" + m_info.capturedExpression;
        else
            return m_info.capturedExpression;
    }
    std::string AssertionResult::getExpressionInMacro() const {
        if( m_info.macroName.empty() )
            return m_info.capturedExpression;