public void TestEmptyLineEnd()
{
var canvas = new Canvas(5, 3);
var ppmLines = PPMWriter.ToText(canvas).ToList();
Assert.AreEqual(7, ppmLines.Count());
Assert.AreEqual("", ppmLines.Last());
}
public void TestHeader()
{
var canvas = new Canvas(5, 3);
var ppmLines = PPMWriter.ToText(canvas).ToList();
Assert.AreEqual("P3", ppmLines[0]);
Assert.AreEqual("5 3", ppmLines[1]);
Assert.AreEqual("255", ppmLines[2]);
}
public void TestSomeValues()
{
var canvas = new Canvas(5, 3);
var c1 = new Color(1.5, 0, 0);
var c2 = new Color(0, 0.5, 0);
var c3 = new Color(-0.5, 0, 1);
canvas.SetPixel(0, 0, c1);
canvas.SetPixel(2, 1, c2);
canvas.SetPixel(4, 2, c3);
var ppmLines = PPMWriter.ToText(canvas).ToList();
Assert.AreEqual("255 0 0 0 0 0 0 0 0 0 0 0 0 0 0", ppmLines[3]);
Assert.AreEqual("0 0 0 0 0 0 0 127 0 0 0 0 0 0 0", ppmLines[4]);
Assert.AreEqual("0 0 0 0 0 0 0 0 0 0 0 0 0 0 255", ppmLines[5]);
}
public void TestSplitLine()
{
var canvas = new Canvas(10, 2);
var c = new Color(1, 0.8, 0.6);
for (int y = 0; y < 2; y++)
{
for (int x = 0; x < 10; x++)
{
canvas.SetPixel(x, y, c);
}
}
var ppmLines = PPMWriter.ToText(canvas).ToList();
Assert.AreEqual("255 204 153 255 204 153 255 204 153 255 204 153 255 204 153 255 204", ppmLines[3]);
Assert.AreEqual("153 255 204 153 255 204 153 255 204 153 255 204 153", ppmLines[4]);
Assert.AreEqual("255 204 153 255 204 153 255 204 153 255 204 153 255 204 153 255 204", ppmLines[5]);
Assert.AreEqual("153 255 204 153 255 204 153 255 204 153 255 204 153", ppmLines[6]);
}
