cheatsheets/rspec-rails.md

title	layout
Rspec-rails controllers	default

Models

# spec/models/*.rb
decribe MyModel do
end

Controllers

# spec/controllers/*.rb
describe MyController do
  describe "POST update" do
    it "works" do
      post :update, { user: { name: "john" } }

      controller
      controller.send ...

      response
      expect(response).to be_success
      expect(response).to have_http_status(200)
      expect(response).to render_template("index")
    end
  end
end

Request

# spec/requests/*.rb
describe "home page" do
  it "displays the user's username after successful login" do
    user = User.create!(:username => "jdoe", :password => "secret")

    get "/login"

    assert_select "form.login" do
      assert_select "input[name=?]", "username"
      assert_select "input[name=?]", "password"
      assert_select "input[type=?]", "submit"
    end

    post "/login", username: "jdoe", password: "secret"
    # capybara
    expect(page).to have_selector(".header .username", :text => "jdoe")
  end
end

Routing

# spec/routing/*.rb
describe "routing to profiles" do
  it "routes /profile/:username to profile#show for username" do
    expect(get: "/profiles/jsmith").to route_to(
      controller: "profiles",
      action: "show",
      username: "jsmith"
    )
  end

  it "does not expose a list of profiles" do
    expect(get: "/profiles").not_to be_routable
  end
end

Helpers

# spec/helpers/*.rb
describe EventsHelper do
  describe "#link_to_event" do
    it "displays the title, and formatted date" do
      event = Event.new("Ruby Kaigi", Date.new(2010, 8, 27))

      # helper is an instance of ActionView::Base configured with the
      # EventsHelper and all of Rails' built-in helpers
      expect(helper.link_to_event).to match /Ruby Kaigi, 27 Aug, 2010/
    end
  end
end

Matchers

be_a_new(Widget)  # new_record?
render_template("new")
render_template(partial: 'form', locals: {...})
redirect_to(widgets_path)
route_to(..)
be_routable
have_http_status(500)
have_http_status(:created)