[chef] Use of chef-zero in unit testing

[Joe Nuspl < >]

I am writing rspec tests for tools that interact with the chef, i.e. pushing 
of new cookbooks to the chef-server, creating Chef::Node objects from 
asset-tracking system.

I was thinking of firing up a chef-zero instance to used as the backend for 
these tests.  A couple issues I see:

1) chef-zero requires a port to be specified.  Since there may be multiple 
tests running simultaneously, need to use different ports.  I suppose I could 
iterate over a range of ports and use that one if it succeeds.

2) Teardown.  I suppose an after(:all) clause to do a zero.stop would do the 
trick.

Before I start, has anyone else gone down this path?

Thanks.

        Joe