Table of Contents

1. Challenge

   Test That the Required Classes Are Contained

   1. Change to the spec directory of the nginx module:

      cd /etc/puppetlabs/code/environments/production/modules/nginx/spec/
      

   2. Open the classes/nginx_spec.rb file:

      sudo vim classes/nginx_spec.rb
      

   3. Review the existing test. Currently, it is set up to check if the module will compile.

   4. Add unit tests to ensure the desired classes are contained:

      describe 'nginx' do
        on_supported_os.each do |os, os_facts|
          context "on #{os}" do
            let(:facts) { os_facts }
      
            it { is_expected.to contain_class('nginx::install') }
            it { is_expected.to contain_class('nginx::config') }
            it { is_expected.to contain_class('nginx::service') }
            it { is_expected.to compile }
          end
        end
      end
      

2. Challenge

   Test That the `nginx` Package Is Installed

   Add the package-based unit test:

   it { is_expected.to contain_package('nginx') }
   

3. Challenge

   Test That the `nginx` service Is Started, Enabled, and Able to Be Restarted

   1. Add the basic service test:

      it { is_expected.to contain_service('nginx') }
      

   2. Refine the test by adding the required parameter information:

      it { is_expected.to contain_service('nginx').with(ensure: 'running', enable: true, hasrestart: true) }
      

4. Challenge

   Test the Contents of the Static Configuration File

   1. Create a case statement for both distros within the context block:

      case os_facts[:osfamily]
      when 'Debian'
      when 'RedHat'
      end
      

   2. Check that the file exists:

      case os_facts[:osfamily]
      when 'Debian'
        it { is_expected.to contain_file('/etc/nginx/nginx.conf').with_source('puppet:///modules/nginx/Debian.conf') }
      when 'RedHat'
        it { is_expected.to contain_file('/etc/nginx/nginx.conf').with_source('puppet:///modules/nginx/RedHat.conf') }
      end
      

      Save and exit.

   3. Run the unit test:

      sudo pdk test unit