Wireshark-dev: Re: [Wireshark-dev] Packet sample repository/library?
From: Jirka Novak <j.novak@xxxxxxxxxxxx>
Date: Tue, 3 Jan 2017 23:19:37 +0100
Hello,

>>>> 2) Won't be good idea to allow skip a sample from automatic testing
>>>> (because it is for GUI demonstration)?
>>>
>>> You can invoke individual tests (which is most likely what you want when
>>> you are testing changes to a single dissector). GUI versus tshark
>>> single-pass and two-pass (-2) should produce the same results.
>>>
>>
>> Maybe this isn't quite what you meant but it *is* (semi-)normal that 1- and
>> 2- pass results are different.  At least for generated fields (that require
>> information from the first pass to calculate--e.g., links to frames that
>> occur later in the capture).  [Or do those fields not show up in tshark's
>> 2nd pass either?  My memory is fading...]
> 
> You are right, I was a bit imprecise. In the context of VoIP calls, when
> the 1-pass recognizes a conversation, the same conversation *should*
> also be found by the 2-pass. Indeed, dissectors can add extra
> information in the 2-pass (like a "Response in frame X" link) and these
> would show in the tshark -2 output as well.

  do you think it makes sense to store/compare 1-pass and 2-pass outputs
separated?
  If so, should it be stored for each output type (text and pdml)?

						Sincerely yours,

							Jirka Novak