private void repeatHeaderTest()
        {
            MemoryStream        bOut = new MemoryStream();
            ArmoredOutputStream aOut = new ArmoredOutputStream(bOut);

            aOut.SetHeader("Comment", "Line 1");
            aOut.AddHeader("Comment", "Line 2");

            aOut.Write(sample, 0, sample.Length);

            aOut.Close();

            MemoryStream       bIn = new MemoryStream(bOut.ToArray(), false);
            ArmoredInputStream aIn = new ArmoredInputStream(bIn, true);

            string[] hdrs  = aIn.GetArmorHeaders();
            int      count = 0;

            for (int i = 0; i != hdrs.Length; i++)
            {
                if (hdrs[i].IndexOf("Comment: ") == 0)
                {
                    count++;
                }
            }

            IsEquals(2, count);
        }