public void CloseStream()
        {
            var stream = new MemoryStream();

            writer = new TrwWriterXml(stream);
            writer.Dispose();
            Assert.That(() => stream.Position = 0, Throws.Exception);
        }
 public void Setup()
 {
     builder = new StringBuilder();
     writer  = new TrwWriterXml(builder);
 }