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dafcaa169e
Add separate header `test/unit_test_utility.hpp` for printers and other utilities for better integration of GIL types with Boost.Test.
70 lines
2.6 KiB
C++
70 lines
2.6 KiB
C++
//
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// Copyright 2019 Mateusz Loskot <mateusz at loskot dot net>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/gil.hpp>
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#define BOOST_TEST_MODULE test_image_view_subimage_view
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#include "unit_test.hpp"
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#include "unit_test_utility.hpp"
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#include "core/image/test_fixture.hpp"
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namespace gil = boost::gil;
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namespace fixture = boost::gil::test::fixture;
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BOOST_AUTO_TEST_SUITE(subimage_view)
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BOOST_AUTO_TEST_CASE_TEMPLATE(subimage_equals_image, Image, fixture::image_types)
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{
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auto i0 = fixture::create_image<Image>(4, 4, 128);
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auto const v0 = gil::const_view(i0);
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BOOST_TEST(v0.dimensions().x == 4);
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BOOST_TEST(v0.dimensions().y == 4);
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// request with 2 x point_t values
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{
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auto v1 = gil::subimage_view(gil::view(i0), {0, 0}, i0.dimensions());
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BOOST_TEST(v0.dimensions() == v1.dimensions());
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BOOST_TEST(gil::equal_pixels(v0, v1));
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}
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// request with 4 x dimension values
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{
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auto v1 = gil::subimage_view(gil::view(i0), 0, 0, i0.dimensions().x, i0.dimensions().y);
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BOOST_TEST(v0.dimensions() == v1.dimensions());
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BOOST_TEST(gil::equal_pixels(v0, v1));
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}
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE(subimage_equals_image_quadrants, Image, fixture::image_types)
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{
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auto i0 = fixture::create_image<Image>(4, 4, 0);
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auto v0 = gil::view(i0);
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// create test image and set values of pixels in:
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// quadrant 1
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auto const i1 = fixture::create_image<Image>(2, 2, 255);
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v0[2] = v0[3] = v0[6] = v0[7] = gil::const_view(i1)[0];
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// quadrant 2
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auto const i2 = fixture::create_image<Image>(2, 2, 128);
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v0[0] = v0[1] = v0[4] = v0[5] = gil::const_view(i2)[0];
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// quadrant 3
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auto const i3 = fixture::create_image<Image>(2, 2, 64);
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v0[8] = v0[9] = v0[12] = v0[13] = gil::const_view(i3)[0];
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// quadrant 4
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auto const i4 = fixture::create_image<Image>(2, 2, 32);
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v0[10] = v0[11] = v0[14] = v0[15] = gil::const_view(i4)[0];
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auto v1 = gil::subimage_view(gil::view(i0), { 2, 0 }, i0.dimensions() / 2);
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BOOST_TEST(gil::equal_pixels(v1, gil::const_view(i1)));
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auto v2 = gil::subimage_view(gil::view(i0), { 0, 0 }, i0.dimensions() / 2);
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BOOST_TEST(gil::equal_pixels(v2, gil::const_view(i2)));
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auto v3 = gil::subimage_view(gil::view(i0), { 0, 2 }, i0.dimensions() / 2);
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BOOST_TEST(gil::equal_pixels(v3, gil::const_view(i3)));
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auto v4 = gil::subimage_view(gil::view(i0), { 2, 2 }, i0.dimensions() / 2);
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BOOST_TEST(gil::equal_pixels(v4, gil::const_view(i4)));
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}
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BOOST_AUTO_TEST_SUITE_END()
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