public void SetUp()
{
GLib.GType.Init ();
File.Copy ("../data/" + imagefile, "./" + imagefile, true);
image = ImageFactory.Open ("./" + imagefile);
image.ReadMetadata ();
}
public void SetAndReadComment()
{
string comment = "comment set by unit test";
image.Comment = comment;
image.WriteMetadata ();
image = ImageFactory.Open ("./" + imagefile);
image.ReadMetadata ();
Assert.AreEqual (image.Comment, comment);
}