public void TestSeekEndOutOfBounds() { string dirName = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location); string path = Path.Combine(dirName, "bensound-scifi.mp3"); Mpg123 mpg123 = new Mpg123(); mpg123.Open(path); byte[] buffer = new byte[1000]; uint end = 0; while (mpg123.Read(buffer, ref end) != Mpg123.Errors.OK) { } long offsets = 0; long step = 0; ulong fill = 0; mpg123.Index(ref offsets, ref step, ref fill); //i expect to get an exception because the seek will be set to (end + 1) Assert.That(() => mpg123.Seek(-1, SeekOrigin.Begin), Throws.TypeOf <Mpg123.ErrorException>()); }