```ruby
require 'puppetlabs_spec_helper/module_spec_helper'
```

Add rspec-puppet-facts (omitted from a previos commit), and set a puppetversion fact from an environment variable
user
```ruby
require 'puppetlabs_spec_helper/module_spec_helper'
require 'rspec-puppet-facts'
include RspecPuppetFacts

RSpec.configure do |c|
  c.default_facts = {
    :puppetversion => ENV['PUPPET_VERSION'] || '3.7.0'
  }
end
```
assistant