better.rb

describe ChildrenController
  belongs_to :parent

  describe "GET :index" do
    before(:each) do
      @children = stub_index(Child)
    end

    it_should_find_and_assign :children
    it_should_render_template "index"
  end

  describe "GET :new" do
    before(:each) do
      @child = stub_new(Child)
    end

    it_should_initialize_and_assign :child
    it_should_render_template "new" 
  end

  describe "GET :edit" do
    before(:each) do
      @child = stub_edit(Child)
    end

    it_should_find_and_assign :child
    it_should_render_template "edit" 
  end

  # ... and so forth ...
end