Add tests

spec/classes/postfix_spec.rb

 require 'spec_helper'
 
 describe 'postfix' do
+  context 'when using defaults' do
     context 'when on Debian' do
       let (:facts) { {
         :operatingsystem => 'Debian',
@@ -20,6 +21,16 @@ describe 'postfix' do
       it { should contain_postfix__config('myorigin') }
       it { should contain_postfix__config('alias_maps') }
       it { should contain_postfix__config('inet_interfaces') }
+
+      it { should contain_mailalias('root') }
+
+      it {
+        should contain_service('postfix').with(
+          :ensure    => 'running',
+          :enable    => 'true',
+          :hasstatus => 'true',
+          :restart   => '/etc/init.d/postfix reload'
+      ) }
     end
 
     context 'when on RedHat' do
@@ -44,5 +55,16 @@ describe 'postfix' do
       it { should contain_postfix__config('sendmail_path') }
       it { should contain_postfix__config('newaliases_path') }
       it { should contain_postfix__config('mailq_path') }
+
+      it { should contain_mailalias('root') }
+
+      it {
+        should contain_service('postfix').with(
+          :ensure    => 'running',
+          :enable    => 'true',
+          :hasstatus => 'true',
+          :restart   => '/etc/init.d/postfix reload'
+      ) }
+    end
   end
 end