public void EndsInNewLineChar()
{
var c = new Canvas(10, 2);
c.SetAllPixels(new Color(1f, 0.8f, 0.6f));
var ppm = PPM.CanvasToPPM(c);
ppm.Should().EndWith(Environment.NewLine);
}
public void ProperHeader()
{
var c = new Canvas(5, 3);
var ppm = PPM.CanvasToPPM(c);
var lines = ppm.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
lines[0].Should().Be("P3");
lines[1].Should().Be("5 3");
lines[2].Should().Be("255");
}
public void SplitsLongLines()
{
var c = new Canvas(10, 2);
c.SetAllPixels(new Color(1f, 0.8f, 0.6f));
var ppm = PPM.CanvasToPPM(c);
var lines = ppm.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
lines[3].Should().Be("255 204 153 255 204 153 255 204 153 255 204 153 255 204 153 255 204");
lines[4].Should().Be("153 255 204 153 255 204 153 255 204 153 255 204 153");
lines[5].Should().Be("255 204 153 255 204 153 255 204 153 255 204 153 255 204 153 255 204");
lines[6].Should().Be("153 255 204 153 255 204 153 255 204 153 255 204 153");
}
public void PPMPixelData()
{
var c = new Canvas(5, 3);
c.WritePixel(new Color(1.5f, 0f, 0f), 0, 0);
c.WritePixel(new Color(0f, 0.5f, 0f), 2, 1);
c.WritePixel(new Color(-0.5f, 0f, 1f), 4, 2);
var ppm = PPM.CanvasToPPM(c);
var lines = ppm.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
lines[3].Should().Be("255 0 0 0 0 0 0 0 0 0 0 0 0 0 0");
lines[4].Should().Be("0 0 0 0 0 0 0 128 0 0 0 0 0 0 0");
lines[5].Should().Be("0 0 0 0 0 0 0 0 0 0 0 0 0 0 255");
}