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C++

/*=========================================================================
Program: Visualization Toolkit
Module: TestErrorObserver.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef vtkTestErrorObserver_h
#define vtkTestErrorObserver_h
#include <string> // Needed for std::string
#include <vtkCommand.h>
namespace vtkTest
{
class ErrorObserver : public ::vtkCommand
{
public:
vtkTypeMacro(ErrorObserver, vtkCommand);
ErrorObserver()
: Error(false)
, Warning(false)
, ErrorMessage("")
, WarningMessage("")
{
}
static ErrorObserver* New() { return new ErrorObserver; }
bool GetError() const { return this->Error; }
bool GetWarning() const { return this->Warning; }
void Clear()
{
this->Error = false;
this->Warning = false;
this->ErrorMessage = "";
this->WarningMessage = "";
}
void Execute(vtkObject* vtkNotUsed(caller), unsigned long event, void* calldata) override
{
switch (event)
{
case vtkCommand::ErrorEvent:
ErrorMessage += static_cast<char*>(calldata);
this->Error = true;
break;
case vtkCommand::WarningEvent:
WarningMessage += static_cast<char*>(calldata);
this->Warning = true;
break;
}
}
std::string GetErrorMessage() { return ErrorMessage; }
std::string GetWarningMessage() { return WarningMessage; }
/**
* Check to see if an error or warning message exists.
* Given an observer, a message and a status with an initial value,
* Returns 1 if an error does not exist, or if msg is not contained
* in the error message.
* Returns 0 if the error exists and msg is contained in the error
* message.
* If the test fails, it reports the failing message, prepended with "ERROR:".
* ctest will detect the ERROR and report a failure.
*/
int CheckErrorMessage(const std::string& expectedMsg)
{
if (!this->GetError())
{
std::cout << "ERROR: Failed to catch any error. Expected the error message to contain \""
<< expectedMsg << std::endl;
return 1;
}
else
{
std::string gotMsg(this->GetErrorMessage());
if (gotMsg.find(expectedMsg) == std::string::npos)
{
std::cout << "ERROR: Error message does not contain \"" << expectedMsg << "\" got \n\""
<< gotMsg << std::endl;
return 1;
}
}
this->Clear();
return 0;
}
int CheckWarningMessage(const std::string& expectedMsg)
{
if (!this->GetWarning())
{
std::cout << "ERROR: Failed to catch any warning. Expected the warning message to contain \""
<< expectedMsg << std::endl;
return 1;
}
else
{
std::string gotMsg(this->GetWarningMessage());
if (gotMsg.find(expectedMsg) == std::string::npos)
{
std::cout << "ERROR: Warning message does not contain \"" << expectedMsg << "\" got \n\""
<< gotMsg << std::endl;
return 1;
}
}
this->Clear();
return 0;
}
private:
bool Error;
bool Warning;
std::string ErrorMessage;
std::string WarningMessage;
};
}
#endif
// VTK-HeaderTest-Exclude: vtkTestErrorObserver.h