/*=========================================================================
 *
 *  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 "itkRGBPixel.h"
#include "itkRangeGTestUtilities.h"
#include <gtest/gtest.h>


static_assert(itk::RangeGTestUtilities::CheckConstexprBeginAndEndOfContainer<itk::RGBPixel<>>() &&
              itk::RangeGTestUtilities::CheckConstexprBeginAndEndOfContainer<itk::RGBPixel<std::uint8_t>>() &&
              itk::RangeGTestUtilities::CheckConstexprBeginAndEndOfContainer<itk::RGBPixel<float>>());


// Tests that a RGBPixel that is "value-initialized" (by empty braces, `{}`) is zero-filled.
TEST(RGBPixel, ValueInitializedIsZeroFilled)
{
  itk::RangeGTestUtilities::ExpectEachElementIsZero(itk::RGBPixel<>{});
  itk::RangeGTestUtilities::ExpectEachElementIsZero(itk::RGBPixel<std::uint8_t>{});
  itk::RangeGTestUtilities::ExpectEachElementIsZero(itk::RGBPixel<float>{});
}
