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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.
*
*=========================================================================*/
#include "itkSparseFrequencyContainer2.h"
int
itkSparseFrequencyContainer2Test(int, char *[])
{
std::cout << "SparseFrequencyContainer2 Test \n \n";
using SparseFrequencyContainer2Type = itk::Statistics::SparseFrequencyContainer2;
auto container = SparseFrequencyContainer2Type::New();
using AbsoluteFrequencyType = SparseFrequencyContainer2Type::AbsoluteFrequencyType;
constexpr unsigned int numberOfBins = 1250;
container->Initialize(numberOfBins);
// Test the SetFrequency() / GetFrequency() methods
{
std::cout << "Testing Set/Get Frequency methods...";
for (unsigned int bin = 0; bin < numberOfBins; ++bin)
{
// Compute any value as frequency just to test the SetFrequency() method
const auto frequency = static_cast<AbsoluteFrequencyType>(bin * bin);
container->SetFrequency(bin, frequency);
}
for (unsigned int bin = 0; bin < numberOfBins; ++bin)
{
// Test if the values can be read back
const auto frequency = static_cast<AbsoluteFrequencyType>(bin * bin);
const AbsoluteFrequencyType stored = container->GetFrequency(bin);
if (stored != frequency)
{
std::cout << "Failed !" << std::endl;
std::cout << "Stored Frequency in bin " << bin << " doesn't match value" << std::endl;
std::cout << "Value is = " << stored << " value should be " << frequency << std::endl;
return EXIT_FAILURE;
}
}
std::cout << " PASSED !" << std::endl;
} // end of SetFrequency() / GetFrequency() test
// Set all the bins to zero and check the values
container->SetToZero();
for (unsigned int bin = 0; bin < numberOfBins; ++bin)
{
if (container->GetFrequency(bin) != AbsoluteFrequencyType{})
{
std::cout << "Failed !" << std::endl;
std::cout << "Stored Frequency in bin is not zero after SetToZero() method invocation" << std::endl;
return EXIT_FAILURE;
}
}
// Test the IncreaseFrequency() method
{
std::cout << "Testing IncreaseFrequency method...";
// Try not to depend on previous tests....So, we initialize the histogram again.
for (unsigned int bin = 0; bin < numberOfBins; ++bin)
{
// Compute any value as frequency just to test the SetFrequency() method
const auto frequency = static_cast<AbsoluteFrequencyType>(bin * bin);
container->SetFrequency(bin, frequency);
}
// Now increment by a number (we use "bin", but any other will do it...)
for (unsigned int bin = 0; bin < numberOfBins; ++bin)
{
// Compute any value as frequency just to test the IncreaseFrequency() method
const auto frequency = static_cast<AbsoluteFrequencyType>(bin);
container->IncreaseFrequency(bin, frequency);
}
// Test if the values can be read back
for (unsigned int bin = 0; bin < numberOfBins; ++bin)
{
const auto frequency = static_cast<AbsoluteFrequencyType>(bin * bin + bin);
const AbsoluteFrequencyType stored = container->GetFrequency(bin);
if (stored != frequency)
{
std::cout << "Failed !" << std::endl;
std::cout << "Stored Frequency in bin " << bin << " doesn't match value" << std::endl;
std::cout << "Value is = " << stored << " value should be " << frequency << std::endl;
return EXIT_FAILURE;
}
}
std::cout << " PASSED !" << std::endl;
} // end of SetFrequency() / GetFrequency() test
std::cout << "Test passed." << std::endl;
return EXIT_SUCCESS;
}
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