Override parameters

spec/classes/postfix_spec.rb

@@ -67,4 +67,54 @@ describe 'postfix' do
       ) }
     end
   end
+
+  context 'when setting parameters' do
+    context 'when on Debian' do
+      context "when setting smtp_listen to 'all'" do
+        let (:facts) { {
+          :operatingsystem => 'Debian',
+          :osfamily        => 'Debian',
+          :fqdn            => 'fqdn.example.com',
+        } }
+
+        let (:params) { {
+          :smtp_listen         => 'all',
+          :root_mail_recipient => 'foo',
+          :use_amavisd         => 'yes',
+          :use_dovecot_lda     => 'yes',
+          :use_schleuder       => 'yes',
+          :use_sympa           => 'yes',
+          :mail_user           => 'bar',
+          :myorigin            => 'localhost',
+          :inet_interfaces     => 'localhost2',
+        } }
+
+        it { should contain_package('postfix') }
+        it { should contain_package('mailx') }
+
+        it { should contain_file('/etc/mailname').without('seltype').with_content("fqdn.example.com\n") }
+        it { should contain_file('/etc/aliases').without('seltype').with_content("# file managed by puppet\n") }
+        it { should contain_exec('newaliases').with_refreshonly('true') }
+        it {
+          should contain_file('/etc/postfix/master.cf').without('seltype').with_content(
+            /smtp      inet  n       -       -       -       -       smtpd/
+        ) }
+        it { should contain_file('/etc/postfix/main.cf').without('seltype') }
+
+        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
+    end
+  end
 end