public void TestDifferenceNode()
{
Size testSize = new Size(5, 5);
Frame inputA = new Frame(testSize);
Frame inputB = new Frame(testSize);
Frame black = new Frame(testSize);
for (int x = 0; x < testSize.Width; x++)
{
for (int y = 0; y < testSize.Height; y++)
{
inputA[x, y] = new Rgb((byte)(x + y), (byte)(x + y), (byte)(x + y));
inputB[x, y] = new Rgb((byte)(x * y), (byte)(x * y), (byte)(x * y));
}
}
DifferenceNode diffNode = new DifferenceNode();
Frame[] diffReal = { inputA, inputB };
Frame[] diffSelf = { inputA, inputA };
Frame[] resultReal = diffNode.Process(diffReal, 0);
Frame[] resultSelf = diffNode.Process(diffSelf, 0);
for (int x = 0; x < testSize.Width; x++)
{
for (int y = 0; y < testSize.Height; y++)
{
Assert.Equal(127, resultSelf[0][x, y].R);
Assert.Equal(127, resultSelf[0][x, y].G);
Assert.Equal(127, resultSelf[0][x, y].B);
Assert.Equal(127 + (((int)inputA[x, y].R - inputB[x, y].R) / 2), resultReal[0][x, y].R);
Assert.Equal(127 + (((int)inputA[x, y].G - inputB[x, y].G) / 2), resultReal[0][x, y].G);
Assert.Equal(127 + (((int)inputA[x, y].B - inputB[x, y].B) / 2), resultReal[0][x, y].B);
}
}
}
