Project: RSpec Rails 3.4

Publisher: RSpec

Controller specs

Controller specs are marked by :type => :controller or if you have set
config.infer_spec_type_from_file_location! by placing them in spec/controllers.

A controller spec is an RSpec wrapper for a Rails functional test
(ActionController::TestCase::Behavior).
It allows you to simulate a single http request in each example, and then
specify expected outcomes such as:

rendered templates
redirects
instance variables assigned in the controller to be shared with the view
cookies sent back with the response

To specify outcomes, you can use:

standard rspec matchers (expect(response.status).to eq(200))
standard test/unit assertions (assert_equal 200, response.status)
rails assertions (assert_response 200)

rails-specific matchers:

render_template

expect(response).to render_template(:new)   # wraps assert_template

redirect_to

expect(response).to redirect_to(location)   # wraps assert_redirected_to

have_http_status

expect(response).to have_http_status(:created)

be_a_new

expect(assigns(:widget)).to be_a_new(Widget)

Examples

RSpec.describe TeamsController do
  describe "GET index" do
    it "assigns @teams" do
      team = Team.create
      get :index
      expect(assigns(:teams)).to eq([team])
    end

    it "renders the index template" do
      get :index
      expect(response).to render_template("index")
    end
  end
end

Views

by default, views are not rendered. See views are stubbed by default and render_views for details.

Topics

Last published about 7 years ago by myronmarston.