[rspec-users] Documentation about the returns method

[Fernando Perez]

Hi,

>From the railscasts website source code, in the episodes_controller_spec
I read:

  it "index action with search should search published episodes" do
    Episode.expects(:search_published).with('foo').returns(Episode.all)
    get :index, :search => 'foo'
  end

Here are my questions:
- What does the returns(Episode.all) mean?
- Is it stubbing what the search_published method returns?
- Is it useful to add the returns(Episode.all) method call here?
- Whats the difference with and_return(Episode.all)?
- Shouldn't we only test for:
Episode.expects(:search_published).with('foo')?
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