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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
// First include the header file to be tested:
#include "itkMacro.h"
#include <gtest/gtest.h>
#include <sstream>
#include <string>
itkDeclareExceptionMacro(GTest_SpecializedException,
ExceptionObject,
"GTest specific specialized exception (for unit test purposes only)");
// Tests the description of an exception object thrown by `itkExceptionMacro(x)`.
TEST(ExceptionObject, TestDescriptionFromExceptionMacro)
{
class TestClass
{
public:
ITK_DISALLOW_COPY_AND_MOVE(TestClass);
TestClass() = default;
virtual ~TestClass() = default;
itkVirtualGetNameOfClassMacro(TestClass);
void
CallExceptionMacro(const std::string & message) const
{
itkExceptionMacro(<< message);
}
};
const std::string message = "test message";
const TestClass testObject{};
try
{
testObject.CallExceptionMacro(message);
}
catch (const itk::ExceptionObject & exceptionObject)
{
const char * const actualDescription = exceptionObject.GetDescription();
ASSERT_NE(actualDescription, nullptr);
std::ostringstream expectedDescription;
expectedDescription << "ITK ERROR: " << testObject.GetNameOfClass() << '(' << &testObject << "): " << message;
EXPECT_EQ(actualDescription, expectedDescription.str());
}
}
// Tests the description of an exception object thrown by `itkSpecializedExceptionMacro(x)`.
TEST(ExceptionObject, TestDescriptionFromSpecializedExceptionMacro)
{
try
{
itkSpecializedExceptionMacro(GTest_SpecializedException);
}
catch (const itk::ExceptionObject & exceptionObject)
{
const char * const description = exceptionObject.GetDescription();
ASSERT_NE(description, nullptr);
EXPECT_EQ(description, std::string("ITK ERROR: ") + itk::GTest_SpecializedException::default_exception_message);
}
}
// Tests that `ExceptionObject::what()` returns the expected concatenation of
// file name, line number, and description.
TEST(ExceptionObject, TestWhat)
{
const itk::ExceptionObject exceptionObject(__FILE__, __LINE__, "test description");
const char * const what = exceptionObject.what();
const char * const file = exceptionObject.GetFile();
const char * const description = exceptionObject.GetDescription();
ASSERT_NE(what, nullptr);
ASSERT_NE(file, nullptr);
ASSERT_NE(description, nullptr);
EXPECT_EQ(what, file + (":" + std::to_string(exceptionObject.GetLine()) + ":\n") + description);
}
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