Undefined method "contain" for controller spec - ruby-on-rails

Question

It's definitely best to divide specs up so you have specs pertaining to each aspect of the MVC architecture, but I think there is a slight crossover with controller specs and view specs.
With view specs, you should only be concerned with the view, but with controller specs I still think it would be a good idea to test that the correct view is rendered, and maybe even test the content of the view, although more in-depth testing of the content should take place in the view spec.
Despite this clear article, https://www.relishapp.com/rspec/rspec-rails/v/2-1/docs/controller-specs/render-views, describing how to do this, I just cannot integrate my view and controller specs.
I keep getting the error undefined method 'contain'!
Here's my spec_helper:
# This file is copied to spec/ when you run 'rails generate rspec:install'
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'capybara/rspec'
require 'capybara/rails'
require 'factory_girl_rails'
require 'ap'
def set(factory)
#user = FactoryGirl.create(factory)
end
def sign_up(first_name, last_name, profile_name, email, password)
visit "/"
click_link "Register"
fill_in('First name', with: first_name)
fill_in('Last name', with: last_name)
fill_in('Profile name', with: profile_name)
fill_in('Email', with: email)
fill_in('Password', with: password)
fill_in('Password confirmation', with: password)
click_button 'Sign up'
end
def sign_in(email, password)
visit "/"
click_link "Sign In"
fill_in('Email', with: email)
fill_in('Password', with: password)
click_button 'Sign in'
end
def sign_out
visit "/"
click_link "Sign Out"
end
#Webrat.configure do |config|
# config.mode = :rails
#end
#webrat
require 'capybara/poltergeist'
# Capybara.javascript_driver = :poltergeist
Capybara.javascript_driver = :selenium
Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }
# Checks for pending migrations before tests are run.
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)
RSpec.configure do |config|
# true means 'yes, filter these specs'
config.filter_run_excluding stress: true
# config.current_driver = :webkit
# config.use_transactional_fixtures = false
# config.include Capybara::DSL
DatabaseCleaner.strategy = :truncation
config.after(:suite) do
DatabaseCleaner.clean_with(:truncation)
end
# config.before(:suite) do
# DatabaseCleaner.strategy = :transaction
# DatabaseCleaner.clean_with(:truncation)
# DatabaseCleaner.start
# end
# config.after(:each) do
# DatabaseCleaner.clean
# end
#config.after(:suite) do
# DatabaseCleaner.strategy = :transaction
# DatabaseCleaner.clean_with(:truncation)
# DatabaseCleaner.clean
# end
# Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
# config.fixture_path = "#{::Rails.root}/spec/fixtures"
# config.include RSpec::Rails::RequestExampleGroup, type: :feature
# If you're not using ActiveRecord, or you'd prefer not to run each of your
# examples within a transaction, remove the following line or assign false
# instead of true.
config.use_transactional_fixtures = true
I18n.enforce_available_locales = true
# If true, the base class of anonymous controllers will be inferred
# automatically. This will be the default behavior in future versions of
# rspec-rails.
config.infer_base_class_for_anonymous_controllers = false
# Run specs in random order to surface order dependencies. If you find an
# order dependency and want to debug it, you can fix the order by providing
# the seed, which is printed after each run.
# --seed 1234
config.order = "random"
end
Here's my controller spec:
require "spec_helper"
describe UserFriendshipsController, type: :controller do
render_views
let (:user_1) { FactoryGirl.create(:user_1)}
before {
sign_in user_1
get :index
}
it "renders the :index view" do
response.should render_template(:index)
end
it "view contains expected html" do
# a sanity test more than anything
response.should contain("Welcome to the home page")
end
end
Upon running this spec I get this:
.F
Failures:
1) UserFriendshipsController view contains expected html
Failure/Error: response.should contain("Listing widgets")
NoMethodError:
undefined method `contain' for #<RSpec::Core::ExampleGroup::Nested_1:0x00000008632268>
# ./spec/controllers/user_friendships_spec.rb:18:in `block (2 levels) in <top (required)>'
Finished in 0.1835 seconds
2 examples, 1 failure
Why is this happening? How can I get this to work?

Answer 1

If you look at the relish documentation for the current 2.14 version of Rspec you'll see that they're using match now instead:
expect(response.body).to match /Listing widgets/m
Using the should syntax, this should work:
response.body.should match(/Welcome to the home page/)

Answer 2

Right, it was a very unclear article from Rspec that caused this error. It was using webrat in its example and didn't think to tell you. If anyone else gets here, you can add webrat to your gemfile to use the contain method:
Gemfile
group :test do
gem 'webrat'
end
However, it makes a lot more sense to use rspec's native match method:
expect(response.body).to match /Listing widgets/m