image_data_tests.cpp File Reference

#include <stdio.h>
#include <cstdint>
#include "gtest/gtest.h"
#include "../RenderingLibrary/Include/image_data.hpp"

Go to the source code of this file.

Functions
	TEST (ImageDataTests, PixelAssignment)
	TEST (ImageDataTests, ImageDataAssignment)
	TEST (ImageDataTests, GetImageDataEmpty)
	TEST (ImageDataTests, InappropriateAccess)
	TEST (ImageDataTest, SaveLoadTextureJpg)
	TEST (ImageDataTest, SaveLoadTexturePng)
	TEST (ImageDataTest, IncorrectTextureFilepath)

Function Documentation

TEST() [1/7]

TEST	(	ImageDataTest	,
		IncorrectTextureFilepath	)

Definition at line 94 of file image_data_tests.cpp.

{
    std::string const filepath{ "missing_texture_file.png" };
 
    EXPECT_THROW(ImageData image(filepath), std::runtime_error);
}

TEST() [2/7]

TEST	(	ImageDataTest	,
		SaveLoadTextureJpg	)

Definition at line 66 of file image_data_tests.cpp.

{
    std::string const filepath{"test_jpeg_texture_file.jpg"};
    ImageData image1(10U, 10U);
    image1.Fill(Color(255, 0, 0, 255));
    image1.WriteJpegFile(filepath.c_str());
    
    ImageData image2("test_jpeg_texture_file.jpg");
 
    EXPECT_EQ( image1.GetHeight(), image2.GetHeight() );
    EXPECT_EQ( image1.GetWidth(), image2.GetWidth() );
    //Pixels in the output jpeg file don't match completely to source pixels, because the compression algorithm in jpeg might slightly change values.
}

TEST() [3/7]

TEST	(	ImageDataTest	,
		SaveLoadTexturePng	)

Definition at line 80 of file image_data_tests.cpp.

{
    std::string const filepath{ "test_png_texture_file.png" };
    ImageData image1(10U, 10U);
    image1.Fill(Color(255, 0, 0, 255));
    image1.WritePngFile(filepath.c_str());
 
    ImageData image2("test_png_texture_file.png");
 
    EXPECT_EQ(image1.GetHeight(), image2.GetHeight());
    EXPECT_EQ(image1.GetWidth(), image2.GetWidth());
    EXPECT_EQ(image1.GetImageDataRGBA(), image2.GetImageDataRGBA());
}

TEST() [4/7]

TEST	(	ImageDataTests	,
		GetImageDataEmpty	)

Definition at line 49 of file image_data_tests.cpp.

{
  ImageData image;
  EXPECT_TRUE(image.GetImageDataRGBA().empty());
  image = ImageData(3, 3);
  image.Fill(Color(255, 255, 255, 255));
  EXPECT_FALSE(image.GetImageDataRGBA().empty());
}

TEST() [5/7]

TEST	(	ImageDataTests	,
		ImageDataAssignment	)

Definition at line 28 of file image_data_tests.cpp.

{
  ImageData image1(3U, 3U);
  Color const testColor(115U, 100U, 10U, 150U);
  image1.Fill(testColor);
 
  ImageData image2(1, 1);
  image2 = image1;
 
  ASSERT_EQ(image2.GetHeight(), image1.GetHeight());
  ASSERT_EQ(image2.GetWidth(), image1.GetWidth());
  
  for( unsigned int y = 0; y < image1.GetHeight(); ++y )
  {
    for( unsigned int x = 0; x < image1.GetWidth(); ++x )
    {
      EXPECT_EQ(image1.GetPixel(x, y), image2.GetPixel(x, y));
    }    
  }
}

TEST() [6/7]

TEST	(	ImageDataTests	,
		InappropriateAccess	)

Definition at line 58 of file image_data_tests.cpp.

{
  ImageData image(3, 3);
  image.Fill(Color(255, 255, 255, 255));
 
  EXPECT_THROW(image.GetPixel(4, 4), std::runtime_error);
}

TEST() [7/7]

TEST	(	ImageDataTests	,
		PixelAssignment	)

Definition at line 17 of file image_data_tests.cpp.

{
  Color pixel1(1,2,3, 50);
  Color pixel2 = pixel1;
 
  EXPECT_EQ(pixel1.a, pixel2.a);
  EXPECT_EQ(pixel1.r, pixel2.r);
  EXPECT_EQ(pixel1.g, pixel2.g);
  EXPECT_EQ(pixel1.b, pixel2.b);
}