Observers and RSpec

gistfile1.rb

require 'spec_helper'

describe AnswerObserver do
  # let(:user) {stub_model(User)}
  # let(:answer) {Factory(:answer, :user => user)}
  
  describe '#after_create' do
    it "calls update_answer_summary on the answer's user" do
      # This tests the implied implentation that the observer's
      # after_create will fire on a real answer
      user = stub_model(User)
      user.should_receive(:update_answer_summary).with(Factory(:answer, :user => user))

      # Whereas this strictly tests that update_answer_summary is called when the trigger
      # is fired manually. Which is better?
      # @answer = mock_model(Answer, :user => @user)
      # @observer = AnswerObserver.instance
      # 
      # user.should_receive(:update_answer_summary).with(@answer)
      # @observer.after_create(@answer)
    end
    
    # These tests feel reduntant, like I'm testing rails functionality
    # it 'is triggered after an answer is created' do
    #   AnswerObserver.instance.should_receive(:after_create).with(answer)
    # end
    # 
    # it 'is not triggered after an answer is updated' do
    #   answer # Loads the answer so that an update can be triggered
    #   AnswerObserver.instance.should_not_receive(:after_create)
    #   answer.choice_scale = 5
    #   answer.save
    # end
  end
end

I like it like this best.