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Add tests for sf::Image
This commit is contained in:
Bambo-Borris
Lukas Dürrenberger
parent
757cb36d30
commit
8b3723a52b
@ -35,6 +35,7 @@ SET(GRAPHICS_SRC
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Graphics/Color.cpp
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Graphics/ConvexShape.cpp
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Graphics/Glyph.cpp
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Graphics/Image.cpp
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Graphics/Rect.cpp
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Graphics/RectangleShape.cpp
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Graphics/Shape.cpp
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248
test/Graphics/Image.cpp
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248
test/Graphics/Image.cpp
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@ -0,0 +1,248 @@
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#include <SFML/Graphics/Image.hpp>
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#include "GraphicsUtil.hpp"
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#include <array>
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#include <doctest.h>
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TEST_CASE("sf::Image - [graphics]")
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{
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SUBCASE("Default constructor")
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{
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const sf::Image image;
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CHECK(image.getSize() == sf::Vector2u());
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CHECK(image.getPixelsPtr() == nullptr);
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}
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SUBCASE("Create")
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{
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SUBCASE("create(Vector2)")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10));
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CHECK(image.getSize() == sf::Vector2u(10, 10));
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CHECK(image.getPixelsPtr() != nullptr);
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 0));
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}
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}
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}
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SUBCASE("create(Vector2, Color)")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10), sf::Color::Red);
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CHECK(image.getSize() == sf::Vector2u(10, 10));
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CHECK(image.getPixelsPtr() != nullptr);
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color::Red);
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}
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}
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}
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SUBCASE("create(Vector2, Uint8*)")
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{
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// 10 x 10, with 4 colour channels array
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std::array<sf::Uint8, 400> pixels;
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for (std::size_t i = 0; i < pixels.size(); i += 4)
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{
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pixels[i] = 255; // r
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pixels[i + 1] = 0; // g
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pixels[i + 2] = 0; // b
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pixels[i + 3] = 255; // a
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}
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sf::Image image;
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image.create(sf::Vector2u(10, 10), pixels.data());
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CHECK(image.getSize() == sf::Vector2u(10, 10));
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CHECK(image.getPixelsPtr() != nullptr);
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color::Red);
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}
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}
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}
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}
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SUBCASE("Set/get pixel")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10), sf::Color::Green);
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CHECK(image.getPixel(sf::Vector2u(2, 2)) == sf::Color::Green);
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image.setPixel(sf::Vector2u(2, 2), sf::Color::Blue);
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CHECK(image.getPixel(sf::Vector2u(2, 2)) == sf::Color::Blue);
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}
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SUBCASE("Copy from Image")
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{
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SUBCASE("Copy (Image, Vector2u)")
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{
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sf::Image image1;
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image1.create(sf::Vector2u(10, 10), sf::Color::Blue);
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sf::Image image2;
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image2.create(sf::Vector2u(10, 10));
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image2.copy(image1, sf::Vector2u(0, 0));
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image1.getPixel(sf::Vector2u(i, j)) == image2.getPixel(sf::Vector2u(i, j)));
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}
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}
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}
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SUBCASE("Copy (Image, Vector2u, IntRect)")
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{
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sf::Image image1;
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image1.create(sf::Vector2u(5, 5), sf::Color::Blue);
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sf::Image image2;
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image2.create(sf::Vector2u(10, 10));
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image2.copy(image1, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(0, 0), sf::Vector2i(5, 5)));
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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if (i <= 4 && j <= 4)
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CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color::Blue);
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else
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CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 0));
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}
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}
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}
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SUBCASE("Copy (Image, Vector2u, IntRect, bool)")
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{
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const sf::Color dest(255, 0, 0, 255);
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const sf::Color source(5, 255, 78, 232);
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// Create the composited colour for via the alpha composite over operation
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const auto a = static_cast<sf::Uint8>(source.a + (dest.a * (255 - source.a)) / 255);
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const auto r = static_cast<sf::Uint8>(((source.r * source.a) + (((dest.r * dest.a) * (255 - source.a))) / 255) / a);
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const auto g = static_cast<sf::Uint8>(((source.g * source.a) + (((dest.g * dest.a) * (255 - source.a))) / 255) / a);
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const auto b = static_cast<sf::Uint8>(((source.b * source.a) + (((dest.b * dest.a) * (255 - source.a))) / 255) / a);
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const sf::Color composite(r, g, b, a);
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sf::Image image1;
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image1.create(sf::Vector2u(10, 10), dest);
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sf::Image image2;
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image2.create(sf::Vector2u(10, 10), source);
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image1.copy(image2, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(0, 0), sf::Vector2i(10, 10)), true);
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image1.getPixel(sf::Vector2u(i, j)) == composite);
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}
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}
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}
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SUBCASE("Copy (Empty image)")
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{
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sf::Image image1;
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sf::Image image2;
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image2.create(sf::Vector2u(10, 10), sf::Color::Red);
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image2.copy(image1, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(0, 0), sf::Vector2i(9, 9)));
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color::Red);
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}
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}
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}
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SUBCASE("Copy (Out of bounds sourceRect)")
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{
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sf::Image image1;
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image1.create(sf::Vector2u(5, 5), sf::Color::Blue);
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sf::Image image2;
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image2.create(sf::Vector2u(10, 10), sf::Color::Red);
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image2.copy(image1, sf::Vector2u(0, 0), sf::IntRect(sf::Vector2i(5, 5), sf::Vector2i(9, 9)));
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image2.getPixel(sf::Vector2u(i, j)) == sf::Color::Red);
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}
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}
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}
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}
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SUBCASE("Create mask from color")
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{
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SUBCASE("createMaskFromColor(Color)")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10), sf::Color::Blue);
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image.createMaskFromColor(sf::Color::Blue);
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 255, 0));
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}
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}
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}
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SUBCASE("createMaskFromColor(Color, Uint8)")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10), sf::Color::Blue);
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image.createMaskFromColor(sf::Color::Blue, 100);
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for (sf::Uint32 i = 0; i < 10; ++i)
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{
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for (sf::Uint32 j = 0; j < 10; ++j)
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{
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CHECK(image.getPixel(sf::Vector2u(i, j)) == sf::Color(0, 0, 255, 100));
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}
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}
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}
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}
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SUBCASE("Flip horizontally")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10), sf::Color::Red);
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image.setPixel(sf::Vector2u(0, 0), sf::Color::Green);
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image.flipHorizontally();
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CHECK(image.getPixel(sf::Vector2u(9, 0)) == sf::Color::Green);
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}
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SUBCASE("Flip vertically")
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{
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sf::Image image;
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image.create(sf::Vector2u(10, 10), sf::Color::Red);
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image.setPixel(sf::Vector2u(0, 0), sf::Color::Green);
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image.flipVertically();
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CHECK(image.getPixel(sf::Vector2u(0, 9)) == sf::Color::Green);
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}
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}
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