public void CanCombineTiffs()
{
var tiff1 = new Tiff(SamplesList.LittleEndian);
var tiff2 = new Tiff(SamplesList.LZW);
Assert.Equal(tiff1.IsBigEndian, tiff2.IsBigEndian);
var temp = SamplesList.GetTemp();
try
{
var tempTiff = new Tiff();
tempTiff.Images.Add(tiff1.Images[0]);
tempTiff.Images.Add(tiff2.Images[0]);
tempTiff.Save(temp);
System.Threading.Thread.Sleep(1000);
var newTiff = new Tiff(temp);
Assert.Equal(2, newTiff.Images.Count);
}
finally
{
SamplesList.Cleanup(temp);
}
}
public void CanAddExifToStrippedFile()
{
var temp = SamplesList.GetTemp();
try
{
var tiff1 = new Tiff(SamplesList.LAB);
var exif = tiff1.Images[0].Exif;
var tiff2 = new Tiff(SamplesList.NoExif);
Assert.Null(tiff2.Images[0].Exif);
tiff2.Images[0].Exif = exif;
Assert.Equal(36, tiff2.Images[0].Exif.Count);
tiff2.Save(temp);
var tiff3 = new Tiff(temp);
Assert.Equal(tiff2.Images[0].Strips[0].GetHash(), tiff3.Images[0].Strips[0].GetHash());
}
finally
{
SamplesList.Cleanup(temp);
}
}
public void CanAddTiffTag()
{
var tiff1 = new Tiff(SamplesList.LittleEndian);
tiff1.Images[0].Tags.Add(new Tag <byte>()
{
DataType = TagDataType.Byte,
ID = (ushort)PrivateTags.AliasLayerMetadata,
Values = Encoding.UTF8.GetBytes("Hello world"),
Length = 11
});
var temp = SamplesList.GetTemp();
try
{
tiff1.Save(temp);
var tiff2 = new Tiff(temp);
Assert.Equal(tiff1.Images[0].Tags.Count, tiff2.Images[0].Tags.Count);
Assert.Equal(tiff1.Images[0].Strips[0].GetHash(), tiff2.Images[0].Strips[0].GetHash());
}
finally
{
SamplesList.Cleanup(temp);
}
}
/// <summary>
/// Read and parse a sample file from disk, write it back out to a temp file, and verify metadata and properties via NTiff & ImageMagick. Returns hash of final output.
/// </summary>
/// <param name="src"></param>
private static string CheckRewrite(string src)
{
var tiff = new Tiff(src);
var temp = SamplesList.GetTemp();
try
{
tiff.Save(temp);
var newImg = new Tiff(temp);
Assert.Equal(tiff.Images[0].Tags.Count, newImg.Images[0].Tags.Count);
Assert.Equal(tiff.Images[0].Exif.Count, newImg.Images[0].Exif.Count);
// Load source and temp in ImageMagick and compare properties
var srcImg = new ImageMagick.MagickImage(src);
var tempImg = new ImageMagick.MagickImage(temp);
var srcAttributes = srcImg.AttributeNames;
var tempAttributes = tempImg.AttributeNames;
Assert.Equal(srcImg.Signature, tempImg.Signature);
Assert.True(srcAttributes.SequenceEqual(tempAttributes));
Assert.Equal(srcAttributes.Count(), tempAttributes.Count());
foreach (var attr in srcAttributes)
{
if (attr == "date:create" || attr == "date:modify")
{
continue;
}
Assert.Equal(srcImg.GetAttribute(attr), tempImg.GetAttribute(attr));
}
return(Convert.ToBase64String(System.Security.Cryptography.MD5.Create().ComputeHash(File.ReadAllBytes(temp))));
}
finally
{
SamplesList.Cleanup(temp);
}
}
