public void Test() { String test = "The quick red fox jumped over the lazy brown dogs"; TokenOffsetPayloadTokenFilter nptf = new TokenOffsetPayloadTokenFilter(new WhitespaceTokenizer(new StringReader(test))); int count = 0; IPayloadAttribute payloadAtt = nptf.GetAttribute <IPayloadAttribute>(); IOffsetAttribute offsetAtt = nptf.GetAttribute <IOffsetAttribute>(); while (nptf.IncrementToken()) { Payload pay = payloadAtt.Payload; Assert.True(pay != null, "pay is null and it shouldn't be"); byte[] data = pay.GetData(); int start = PayloadHelper.DecodeInt(data, 0); Assert.True(start == offsetAtt.StartOffset, start + " does not equal: " + offsetAtt.StartOffset); int end = PayloadHelper.DecodeInt(data, 4); Assert.True(end == offsetAtt.EndOffset, end + " does not equal: " + offsetAtt.EndOffset); count++; } Assert.True(count == 10, count + " does not equal: " + 10); }