public void ParsePngDirectory_NullDirectory_NoMetadata()
{
PngDirectory pngDirectory = null;
var photo = new Photo("");
pngDirectory.Parse(photo);
Assert.Equal(0, photo.Height);
Assert.Equal(0, photo.Width);
}
public void ParsePngDirectory_ValidDirectory_AllMetadata()
{
var pngDirectory = new PngDirectory(PngChunkType.bKGD);
var photo = new Photo("");
var height = 32;
var width = 32;
pngDirectory.Set(PngDirectory.TagImageHeight, height);
pngDirectory.Set(PngDirectory.TagImageWidth, width);
pngDirectory.Parse(photo);
var actualHeight = photo.Height;
var actualWidth = photo.Width;
Assert.Equal(height, actualHeight);
Assert.Equal(width, actualWidth);
}