RSpec shared_context blocks

things_controller_spec.rb

shared_context 'authenticated user' do
  before(:each) do
    @user = Factory(:user)
    sign_in @user
  end
end

require 'spec_helper'

describe ThingsController do

  describe "when creating a thing" do

    describe 'an authenticated user' do
      include_context 'authenticated user'

      before(:each) do
        @attrs = { :username => @user.to_param,
                   :thing => Factory.attributes_for(:thing) }
      end

      it 'can create a new thing' do
        lambda do
          post :create, @attrs
        end.should change(Thing, :count).by(1)
      end
    end

  end

end