private static long CalculateActualHash(string fileName)
{
using var fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
using var image = PpmReader.ImageFromPpm(fileStream);
ImagePipeline.FromImage(image).Webp(new WebpOptions(100, 100, true)).ToBuffer(out var actual);
return(DifferenceHash.HashLong(actual));
}
public void reads_frame()
{
using var fileStream = new FileStream(Common.GetInputFilePath("pattern.ppm"), FileMode.Open, FileAccess.Read);
var frame = PpmReader.Read(fileStream);
frame.ShouldNotBeNull();
frame.Width.ShouldBe(3);
frame.Height.ShouldBe(2);
frame.Colors.Count.ShouldBeGreaterThan(0);
frame.Colors[0].ShouldBe(NamedColors.Red);
frame.Colors[1].ShouldBe(NamedColors.Green);
frame.Colors[2].ShouldBe(NamedColors.Blue);
frame.Colors[3].ShouldBe(NamedColors.Yellow);
frame.Colors[4].ShouldBe(NamedColors.White);
frame.Colors[5].ShouldBe(NamedColors.Black);
}