ssvarma/facter — comment on commit 4b9792075862cb1082b352c82681a01881b8c2dc
File: spec/unit/pid_spec.rb line 12
By stschulte:

Would be great if you can add another test where you expect Process.pid to return `nil` so we can be sure that the code does not choke on that in the future. Because http://ruby-doc.org/core-1.9.3/Process.html#method-c-pid states:

Returns the process id of this process. Not available on all platforms.

I dont know which platforms are excluded though.