If we pursued option #2, is it feasible to use Paho test suites as the starting point for interoperability test suites? As for timing, I tend to agree you want to start testing before the standard is finalized. You can also use the time to build and finish any test suites. One downside is that you would not be ‘certifying’ one implementation since the standard would not be final. Ian From: paho-dev-bounces@xxxxxxxxxxx [mailto:paho-dev-bounces@xxxxxxxxxxx] On Behalf Of Paul Fremantle Sent: August-22-13 5:00 AM To: General development discussions for paho project Cc: paho-dev-bounces@xxxxxxxxxxx Subject: Re: [paho-dev] MQTT Interoperability Testing Dave It is quite common to do interop testing *during* an OASIS TC's lifecycle rather than after. Interop testing is a great way of uncovering issues in the specification and unclarities. I remember an interesting case in WSRX where we had two ways of doing one thing (yes I know it seems a bad idea put that way!) and it was only during interop testing that a side effect of this became known. So I think it would be good to do interop testing whenever we can. In addition, it takes some effort to produce an interop test suite and we should definitely get on with that. In my experience there are two ways of doing that: 1) create a list of scenarios and then a matrix of implX<-->implY on scenario Z, so you end up with a three dimensional matrix where every cell is either a pass / fail / not tested. The scenarios need to be complete enough so that they cover all the conformance clauses. 2) create a independent test suite that tests all the conformance clauses of the spec. They both have advantages and disadvantages. #2 is easier to test, more repeatable to test and more self contained. However it has two big disadvantages: firstly, it is a lot of upfront work independent of any implementation. Secondly it has to be very complete to really work, because its not actually testing any two real implementations together! PS I think I probably should cross-post this to OASIS as well.
On 22 August 2013 09:35, Dave Locke <locke@xxxxxxxxxx> wrote: like the idea with a caveat :-) If inter-operability was to be based around the MQTT OASIS standard then the timing may make not be practical. Good progress is being made at OASIS but it is not planned te finish until early March 2014 (and could be later). At that point I am not sure how many MQTT implementations will have been updated to meet the standard. Is March 17-20 a little too early for an MQTT inter-op testing hackathon?
All the best Dave
From: "Ian Skerrett" <ian.skerrett@xxxxxxxxxxx> To: "General development discussions for paho project" <paho-dev@xxxxxxxxxxx> Date: 21/08/2013 20:49 Subject: [paho-dev] MQTT Interoperability Testing Sent by: paho-dev-bounces@xxxxxxxxxxx
All, Is there any interest in the MQTT community to organize interoperability testing with different implementations of MQTT clients and servers. It seems there to be a growing list of open source projects and vendors that are providing MQTT support so interoperability testing seems like a good idea. If there is interest, we could look at hosting an MQTT interoperability testing hackathon at EclipseCon in March 17-20 in San Francisco. Thoughts?
Ian
_______________________________________________ paho-dev mailing list paho-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/paho-dev
Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
_______________________________________________ paho-dev mailing list paho-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/paho-dev
-- Paul Fremantle CTO and Co-Founder, WSO2 OASIS WS-RX TC Co-chair, Apache Member
UK: +44 207 096 0336 US: +1 646 595 7614
blog: http://pzf.fremantle.org twitter.com/pzfreo paul@xxxxxxxx wso2.com Lean Enterprise Middleware
Disclaimer: This communication may contain privileged or other confidential information and is intended exclusively for the addressee/s. If you are not the intended recipient/s, or believe that you may have received this communication in error, please reply to the sender indicating that fact and delete the copy you received and in addition, you should not print, copy, retransmit, disseminate, or otherwise use the information contained in this communication. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions. |