complex_scenario_tests.rb

# When you have really complex scenarios you have to test, your tests can become very long
# and duplicative. Here's a simple way to prevent that:

describe SomeController do

  def scenario_setup
    post :foo
    expect(controller.current_user).to be_a User
    
    # some more complex stuff that takes a lot of space
  end
  
  it 'works' do
    scenario_setup
    
    get :bar
    
    expect(current_user.role).to eq 'bar'
  end
  
  it 'fails without proper authorization' do
    scenario_setup
    
    get :baz
    
    expect(response.status).to eq 404
  end
  
  # Even better, they can be nested!
  
  context 'with a broken account' do
    def even_more_setup
      scenario_setup

      post :break_my_account
      expect(controller.current_user.reload.role).to eq 'what is this???'
    end

    it 'logs out out and sets a flash error' do
      get :dogs
      
      expect(controller.current_user).to eq nil
      expect(response.location).to eq '/users/sign_in'
      expect(flash[:error]).to eq 'oh no!'
    end
  end
end