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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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
*
* http://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 "itkParameterMapInterface.h"
#include <itkNumberToString.h>
#include <gtest/gtest.h>
// The class to be tested.
using itk::ParameterMapInterface;
GTEST_TEST(ParameterMapInterface, RetrieveValuesReturnsNullWhenParameterMapIsEmpty)
{
const auto parameterMapInterface = ParameterMapInterface::New();
EXPECT_EQ(parameterMapInterface->RetrieveValues<bool>("parameterName"), nullptr);
EXPECT_EQ(parameterMapInterface->RetrieveValues<double>("parameterName"), nullptr);
}
GTEST_TEST(ParameterMapInterface, RetrieveValuesReturnsNullWhenParameterNameIsMissing)
{
const auto parameterMapInterface = ParameterMapInterface::New();
parameterMapInterface->SetParameterMap({ { "ParameterName", { "0", "1" } } });
EXPECT_EQ(parameterMapInterface->RetrieveValues<bool>("MissingParameterName"), nullptr);
EXPECT_EQ(parameterMapInterface->RetrieveValues<double>("MissingParameterName"), nullptr);
}
GTEST_TEST(ParameterMapInterface, RetrieveValuesSupportsZeroValues)
{
const auto parameterMapInterface = ParameterMapInterface::New();
const std::string parameterName("Key");
parameterMapInterface->SetParameterMap({ { parameterName, {} } });
const auto retrievedValues = parameterMapInterface->RetrieveValues<double>(parameterName);
ASSERT_NE(retrievedValues, nullptr);
EXPECT_EQ(*retrievedValues, std::vector<double>{});
}
GTEST_TEST(ParameterMapInterface, RetrieveValuesSupportsSingleValue)
{
const auto parameterMapInterface = ParameterMapInterface::New();
const std::string parameterName("Key");
for (const double testValue : { -1.0, 0.0, 1.0 })
{
parameterMapInterface->SetParameterMap({ { parameterName, { itk::NumberToString<double>{}(testValue) } } });
const auto retrievedValues = parameterMapInterface->RetrieveValues<double>(parameterName);
ASSERT_NE(retrievedValues, nullptr);
EXPECT_EQ(*retrievedValues, std::vector<double>{ testValue });
}
for (const bool testValue : { false, true })
{
parameterMapInterface->SetParameterMap({ { parameterName, { testValue ? "true" : "false" } } });
const auto retrievedValues = parameterMapInterface->RetrieveValues<bool>(parameterName);
ASSERT_NE(retrievedValues, nullptr);
EXPECT_EQ(*retrievedValues, std::vector<bool>{ testValue });
}
}
GTEST_TEST(ParameterMapInterface, RetrieveValuesSupportsMultipleValues)
{
const auto parameterMapInterface = ParameterMapInterface::New();
const std::string parameterName("Key");
using NumberToString = itk::NumberToString<double>;
for (const double testValue1 : { 0.0, 1.0 })
{
for (const double testValue2 : { 0.0, 1.0 })
{
parameterMapInterface->SetParameterMap(
{ { parameterName, { NumberToString{}(testValue1), NumberToString{}(testValue2) } } });
const auto retrievedValues = parameterMapInterface->RetrieveValues<double>(parameterName);
ASSERT_NE(retrievedValues, nullptr);
const std::vector<double> expectedValues{ testValue1, testValue2 };
EXPECT_EQ(*retrievedValues, expectedValues);
}
}
}
GTEST_TEST(ParameterMapInterface, RetrieveValuesThrowsExceptionWhenConversionFails)
{
const auto parameterMapInterface = ParameterMapInterface::New();
const std::string parameterName("Key");
parameterMapInterface->SetParameterMap({ { parameterName, { "not-a-valid-bool-or-double-value" } } });
EXPECT_THROW(parameterMapInterface->RetrieveValues<bool>(parameterName), itk::ExceptionObject);
EXPECT_THROW(parameterMapInterface->RetrieveValues<double>(parameterName), itk::ExceptionObject);
// A typical input error where floating point value 1.25 might have been intended:
parameterMapInterface->SetParameterMap({ { parameterName, { "1,25" } } });
EXPECT_THROW(parameterMapInterface->RetrieveValues<double>(parameterName), itk::ExceptionObject);
// Either 2375 (using comma as thousands separator) or 2.375 might have been intended:
parameterMapInterface->SetParameterMap({ { parameterName, { "2,375" } } });
EXPECT_THROW(parameterMapInterface->RetrieveValues<double>(parameterName), itk::ExceptionObject);
}
GTEST_TEST(ParameterMapInterface, HasParameter)
{
const auto parameterMapInterface = ParameterMapInterface::New();
const std::string parameterName("Key");
EXPECT_FALSE(parameterMapInterface->HasParameter(parameterName));
parameterMapInterface->SetParameterMap({ { parameterName, {} } });
EXPECT_TRUE(parameterMapInterface->HasParameter(parameterName));
parameterMapInterface->SetParameterMap({ { parameterName, { "a", "b", "c" } } });
EXPECT_TRUE(parameterMapInterface->HasParameter(parameterName));
EXPECT_FALSE(parameterMapInterface->HasParameter("This-is-not-a-key-from-this-map-" + parameterName));
}
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