cheatsheets/rails-rspec.md

title	layout
Rspec-rails	default

Require

require 'spec_helper'

Controller tests

# spec/controllers/*
describe ItemsController do
  it "works" do
    get :index
    expect(response).to be_success
    expect(response.status).to eq(200)
    expect(response).to render_template("index")
  end

  it "loads all of the posts into @posts" do
    post1, post2 = Post.create!, Post.create!
    get :index

    expect(assigns(:posts)).to match_array([post1, post2])
  end
end

Request specs

# spec/features/*
describe "Foo tests", type: :request do
  include RequestHelpers

  it "should work" do
    visit "/"
    expect(page).to have_content "Hello"
    expect(page).to have_selector "h1", text: "Welcome"
  end
end

View specs

# spec/views/*
it "renders _event partial for each event" do
  assign(:events, [stub_model(Event), stub_model(Event)])
  render
  expect(view).to render_template(:partial => "_event", :count => 2)
end

Routes

# spec/routes/*
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/*
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