public void GetExifIfdReference_ReturnsCorrectReference(TiffType type, ByteOrder byteOrder)
{
var tiffIfd = new TiffIfd
{
Entries = new[]
{
new TiffIfdEntry {
Tag = 10, Type = TiffType.Ascii, Count = 10
},
TiffHelper.GenerateTiffIfdEntry(TiffTags.ExifIFD, type, 20u, byteOrder),
new TiffIfdEntry {
Tag = 20, Type = TiffType.Ascii, Count = 10
}
}
};
var exifIfdReference = ExifReader.GetExifIfdReference(tiffIfd, byteOrder);
Assert.Equal(new TiffIfdReference(20), exifIfdReference);
}
public void ReadExifIfdReference_ReturnsNullIfNoExifIfdExists(ByteOrder byteOrder)
{
var tiffIfd = new TiffIfd
{
Entries = new[]
{
new TiffIfdEntry {
Tag = 10, Type = TiffType.Ascii, Count = 10
},
new TiffIfdEntry {
Tag = 15, Type = TiffType.Ascii, Count = 10
},
new TiffIfdEntry {
Tag = 20, Type = TiffType.Ascii, Count = 10
}
}
};
var exifIfdReference = ExifReader.GetExifIfdReference(tiffIfd, byteOrder);
Assert.Null(exifIfdReference);
}