public void testPutStructuredDataExistingSd() { Iso8583TermApp msg = new Iso8583TermApp(); AdditionalData addData = new AdditionalData(); addData[AdditionalData.Field.StructuredData] = "13PSI11V"; msg.AdditionalData = addData; HashtableMessage sd = new HashtableMessage(); sd.Add("ABC", "1234"); msg.StructuredData = sd; HashtableMessage checkSd = msg.StructuredData; Assert.AreNotSame(sd, checkSd); Assert.IsTrue(checkSd.ContainsKey("ABC")); Assert.IsFalse(checkSd.ContainsKey("PSI")); }