Add spec testing for multiple bind_port

Adds simple spec test for multiple ports in
the bind_port. The change in puppet-keystone
will need to support multiple ports so we
ensure nobody breaks this.

Change-Id: Ie2ab4641b0829b872fee0dea3aab236455eb3266

spec/defines/openstacklib_wsgi_apache_spec.rb

@@ -189,6 +189,14 @@ describe 'openstacklib::wsgi::apache' do
         },
       )}
     end
+
+    context 'with multiple ports' do
+      before do
+        params.merge!( :bind_port => [35357, 5000] )
+      end
+
+      it { should contain_apache__vhost('keystone_wsgi').with_port(params[:bind_port]) }
+    end
   end
 
   on_supported_os({