```ruby
require 'spec_helper'

describe 'neutron::policy' do

  let :test_facts do
    { :operatingsystem           => 'default',
      :operatingsystemrelease    => 'default'
    }
  end

  shared_examples_for 'neutron policies' do
    let :params do
      {
        :policy_path => '/etc/neutron/policy.json',
        :policies    => {
          'context_is_admin' => {
            'key'   => 'context_is_admin',
            'value' => 'foo:bar'
          }
        }
      }
    end

    it 'set up the policies' do
      is_expected.to contain_openstacklib__policy__base('context_is_admin').with({
        :key   => 'context_is_admin',
        :value => 'foo:bar'
      })
    end

    it 'set policy_file in neutron.conf' do
      is_expected.to contain_neutron_config('oslo_policy/policy_file').with_value(params[:policy_path])
    end
  end

  context 'on Debian platforms' do
    let :facts do
      @default_facts.merge(test_facts.merge({
         :osfamily => 'Debian'
      }))
    end

    it_configures 'neutron policies'
  end

  context 'on RedHat platforms' do
    let :facts do
      @default_facts.merge(test_facts.merge({
         :osfamily               => 'RedHat',
         :operatingsystemrelease => '7'
      }))
    end

    it_configures 'neutron policies'
  end
end
```

Test multiple operating systems for policy
user
```ruby
require 'spec_helper'

describe 'neutron::policy' do

  let :test_facts do
    { :operatingsystem           => 'default',
      :operatingsystemrelease    => 'default'
    }
  end

  shared_examples_for 'neutron policies' do
    let :params do
      {
        :policy_path => '/etc/neutron/policy.json',
        :policies    => {
          'context_is_admin' => {
            'key'   => 'context_is_admin',
            'value' => 'foo:bar'
          }
        }
      }
    end

    it 'set up the policies' do
      is_expected.to contain_openstacklib__policy__base('context_is_admin').with({
        :key   => 'context_is_admin',
        :value => 'foo:bar'
      })
    end

    it 'set policy_file in neutron.conf' do
      is_expected.to contain_neutron_config('oslo_policy/policy_file').with_value(params[:policy_path])
    end
  end

  on_supported_os({
    :supported_os   => OSDefaults.get_supported_os
  }).each do |os,facts|
    context "on #{os}" do
      let (:facts) do
        facts.merge(OSDefaults.get_facts({:processorcount => 8}))
      end

      it_configures 'neutron policies'
    end
  end

end
```
assistant