how to group testcases in CoAP conformance test suite

Question

I am writing a conformance test suite for Constrained Application Protocol (CoAP) based on TTCN-3. Now I've already known the protocol. CoAP is similar to HTTP. They are both application layer protocols. There are CoAP client and CoAP server, they communicate using messages. Now I am beginning to write the test suite. But I am having trouble in how I can design the whole test suite, because there may be too many test cases. To ensure I design a complete test suite, before writing each test case, it is necessary to group the test cases. How am I going to group these test cases? Anyone can give me some suggestions? Thanks.

Answer 1

Indeed there are many ways to organize your test suite.

A good approach is to first identify what is need to be tested before starting to think how it can be tested . I would suggest having a look at how ETSI validates and tests communication protocols .

More focussing on CoAP testing, you may be get inspired by available tests suites online, such as:

• The iottestware.coap project
• The tests of the libocoap project

Good luck!