There is no simulator available at this time. One of our goals is to have RestAPI backward compatible with previous versions. So, if you have a specific RestAPI call working on the array today - you can assume (I understand you might not want to assume this) that it will work with the future versions also.
That works for people who want to develop for the platform that have access to an XtremIO, but that is going to be a limited subset of people. Without creating an emulator that is available to basically slime / fake output, it's going to be exceptionally hard for anyone to actually build anything for it.
It's part of the catch 22 where I've seen storage companies complain that open source developers aren't working on software for their hardware, but we can't exactly do it without the hardware (or a way to emulate it).
Trust me - you aren't the only person that wants one.
That being said, i have a cluster in my lab running 3.0 I can test this against, if you have a test suite?
Perfect! I don't have a test suite yet, but I can begin working on one for the core library. Once I have a php-unit test suite I'll shoot it your way. Thanks mattcowger for offering to help
I actually thought about building a PHP emulator since all you have to do is re-create the requests / responses from the API guide, but that will take significantly longer.