Test that nginx service exists and runs

spec/classes/service_spec.rb

@@ -7,6 +7,16 @@ describe 'nginx::service' do
       let(:pre_condition) { "class {'nginx':}" }
 
       it { is_expected.to compile.with_all_deps }
+
+      case os_facts[:osfamily]
+      when 'Debian'
+        it do
+          is_expected.to contain_service('nginx').with(
+            'ensure' => 'running',
+            'enable' => true,
+          )
+        end
+      end
     end
   end
 end