port notify local users worker spec to doubles

spec/workers/notify_local_users_spec.rb

@@ -7,14 +7,13 @@ require 'spec_helper'
 describe Workers::NotifyLocalUsers do
   describe '#perfom' do
     it 'should call Notification.notify for each participant user' do
-      person = FactoryGirl.create :person
-      post = FactoryGirl.create :status_message
+      post = double(id: 1234, author: double(diaspora_handle: "foo@bar"))
+      klass_name = double(constantize: double(find_by_id: post))
+      person = double(id: 4321)
+      allow(Person).to receive(:find_by_id).and_return(person)
+      expect(Notification).to receive(:notify).with(instance_of(User), post, person).twice
 
-      expect(StatusMessage).to receive(:find_by_id).with(post.id).and_return(post)
-      #User.should_receive(:where).and_return([alice, eve])
-      expect(Notification).to receive(:notify).with(instance_of(User), instance_of(StatusMessage), instance_of(Person)).twice
-
-      Workers::NotifyLocalUsers.new.perform([alice.id, eve.id], post.class.to_s, post.id, person.id)
+      Workers::NotifyLocalUsers.new.perform([alice.id, eve.id], klass_name, post.id, person.id)
     end
   end
 end