Added unit tests for image class

Started implementing unit tests for image class, operators == and != as well as fill function.

UnitTests/CMakeLists.txt

@@ -39,6 +39,7 @@ add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/BlueFramework/UnitTests/Core/Ve
 
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/BlueFramework/UnitTests/ImageProcessing/Color)
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/BlueFramework/UnitTests/ImageProcessing/RandomHeightmapGeneration)
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/BlueFramework/UnitTests/ImageProcessing/Image)
 
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/BlueFramework/UnitTests/Engine/ClearScreen)
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/BlueFramework/UnitTests/Engine/CopyTextureRegion)

UnitTests/src/BlueFramework/UnitTests/ImageProcessing/Image/CMakeLists.txt

@@ -0,0 +1,41 @@
+#
+# This file is part of BlueFramework, a simple 3D engine.
+# Copyright (c) 2020 Technical University of Munich
+# Chair of Computational Modeling and Simulation.
+# 
+# BlueFramework is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License Version 3
+# as published by the Free Software Foundation.
+# 
+# BlueFramework is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+file(GLOB BlueFramework_UnitTests_ImageProcessing_Image *.*)
+
+source_group(BlueFramework\\UnitTests\\ImageProcessing FILES ${BlueFramework_UnitTests_ImageProcessing_Image})
+
+add_executable(Image
+ ${BlueFramework_UnitTests_Source}
+ ${BlueFramework_UnitTests_ImageProcessing_Image}
+)
+
+
+target_link_libraries(Image 
+ BlueFramework.Core
+ BlueFramework.ImageProcessing
+ gtest
+ gtest_main
+)
+
+add_test(
+ NAME ImageTest
+ COMMAND Image
+)
+
+set_target_properties(Image PROPERTIES FOLDER "BlueFramework/UnitTests/ImageProcessing")

UnitTests/src/BlueFramework/UnitTests/ImageProcessing/Image/image.cpp

@@ -0,0 +1,102 @@
+/*
+ This file is part of BlueFramework, a simple 3D engine.
+ Copyright (c) 2020 Technical University of Munich
+ Chair of Computational Modeling and Simulation.
+
+ BlueFramework is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License Version 3
+ as published by the Free Software Foundation.
+
+ BlueFramework is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <gtest/gtest.h>
+#include <BlueFramework/ImageProcessing/Image.h>
+#include <BlueFramework/ImageProcessing/colorConstants.h>
+
+using namespace testing;
+
+class ImageTest : public Test {
+
+public:
+ ~ImageTest() override {
+ }
+
+protected:
+ void SetUp() override {
+ }
+
+ void TearDown() override {
+ }
+};
+
+TEST_F(ImageTest, GivenImage100x100x3f_AfterFill_AllPixelsHaveFillColor) {
+ // Arrange
+ const int width = 100;
+ const int height = 100;
+
+ const buw::Color3f fillColor = buw::ColorConstants3f::aliceBlue();
+
+ buw::Image3f image = buw::Image3f(width, height);
+
+ // Act
+ image.fill(fillColor);
+
+ // Assert
+ for (int x = 0; x < image.getWidth(); x++) {
+ for (int y = 0; y < image.getHeight(); ++y) {
+ auto color = image.getPixelColor(x, y);
+ EXPECT_EQ(color, fillColor);
+ EXPECT_NE(color, buw::ColorConstants3f::antiqueWhite());
+ }
+ }
+
+ // Annihilate
+}
+
+TEST_F(ImageTest, GivenEqualImages_OperatorEqual_ReturnsTrue) {
+ // Arrange
+ const int width = 100;
+ const int height = 100;
+
+ const buw::Color3f fillColor = buw::ColorConstants3f::aliceBlue();
+
+ buw::Image3f first = buw::Image3f(width, height);
+ buw::Image3f second = buw::Image3f(width, height);
+
+ // Act
+ first.fill(fillColor);
+ second.fill(fillColor);
+
+ // Assert
+ EXPECT_EQ(first, second);
+
+ // Annihilate
+}
+
+TEST_F(ImageTest, GivenNonEqualImages_OperatorEqual_ReturnsFalse) {
+ // Arrange
+ const int width = 100;
+ const int height = 100;
+
+ const buw::Color3f firstFillColor = buw::ColorConstants3f::aliceBlue();
+ const buw::Color3f secondFillColor = buw::ColorConstants3f::antiqueWhite();
+
+ buw::Image3f first = buw::Image3f(width, height);
+ buw::Image3f second = buw::Image3f(width, height);
+
+ // Act
+ first.fill(firstFillColor);
+ second.fill(secondFillColor);
+
+ // Assert
+ EXPECT_NE(first, second);
+
+ // Annihilate
+}