public void Parse_ThumbnailData()
{
var dir = new ExifThumbnailDirectory();
dir.Set(ExifThumbnailDirectory.TagThumbnailOffset, 0);
dir.Set(ExifThumbnailDirectory.TagThumbnailLength, 2);
var segment = new JpegSegment(JpegSegmentType.App1, new byte[]
{
(byte)'E',
(byte)'x',
(byte)'i',
(byte)'f',
(byte)'\0',
(byte)'\0',
0x12, 0x23, 0x34
}, 0);
var metadata = new Mock <IExifMetadata>();
metadata.Setup(mock => mock.Segment).Returns(segment);
metadata.Setup(mock => mock.GetDirectoryOfType <ExifDirectoryBase>()).Returns(dir);
var parser = new ThumbnaiExifAttributeParser <ExifDirectoryBase>("thumbnail");
var thumbnail = parser.Parse(metadata.Object).Value as ImageValue;
CollectionAssert.AreEqual(new byte[] { 0x12, 0x23 }, thumbnail.Value);
}
public void GetYCbCrSubsamplingDescription()
{
var directory = new ExifThumbnailDirectory();
var descriptor = new ExifThumbnailDescriptor(directory);
directory.Set(ExifDirectoryBase.TagYCbCrSubsampling, new[] { 2, 1 });
Assert.Equal("YCbCr4:2:2", descriptor.GetDescription(ExifDirectoryBase.TagYCbCrSubsampling));
Assert.Equal("YCbCr4:2:2", descriptor.GetYCbCrSubsamplingDescription());
directory.Set(ExifDirectoryBase.TagYCbCrSubsampling, new[] { 2, 2 });
Assert.Equal("YCbCr4:2:0", descriptor.GetDescription(ExifDirectoryBase.TagYCbCrSubsampling));
Assert.Equal("YCbCr4:2:0", descriptor.GetYCbCrSubsamplingDescription());
}