Hartl Chapter 5. Section 5.27 - ruby-on-rails

Question

I'm currently working through Hartl. In Chapter 5 i'm adding Hartl's code from listing 5.27 (below) to my spec/requests/static_pages_spec.rb
require 'spec_helper'
describe "Static pages" do
subject { page }
describe "Home page" do
before { visit root_path }
it { should have_selector('h1', text: 'Sample App') }
it { should have_selector('title', text: full_title('')) }
it { should_not have_selector 'title', text: '| Home' }
end
describe "Help page" do
before { visit help_path }
it { should have_selector('h1', text: 'Help') }
it { should have_selector('title', text: full_title('Help')) }
end
describe "About page" do
before { visit about_path }
it { should have_selector('h1', text: 'About') }
it { should have_selector('title', text: full_title('About Us')) }
end
describe "Contact page" do
before { visit contact_path }
it { should have_selector('h1', text: 'Contact') }
it { should have_selector('title', text: full_title('Contact')) }
end
end
Whe I run the $ bundle exec rspec spec/requests/static_pages_spec.rb test, Terminal returns this error:
Failures:
1) Static pages Home page
Failure/Error: it { should have_selector('title', text: full_title('')) }
NoMethodError:
undefined method `full_title' for #<RSpec::Core::ExampleGroup::Nested_1::Nested_1:0x007fb4b44504c8>
# ./spec/requests/static_pages_spec.rb:11:in `block (3 levels) in <top (required)>'
2) Static pages Help page
Failure/Error: it { should have_selector('title', text: full_title('Help')) }
NoMethodError:
undefined method `full_title' for #<RSpec::Core::ExampleGroup::Nested_1::Nested_2:0x007fb4b46a9008>
# ./spec/requests/static_pages_spec.rb:19:in `block (3 levels) in <top (required)>'
3) Static pages About page
Failure/Error: it { should have_selector('title', text: full_title('About Us')) }
NoMethodError:
undefined method `full_title' for #<RSpec::Core::ExampleGroup::Nested_1::Nested_3:0x007fb4b4430290>
# ./spec/requests/static_pages_spec.rb:26:in `block (3 levels) in <top (required)>'
4) Static pages Contact page
Failure/Error: it { should have_selector('title', text: full_title('Contact')) }
NoMethodError:
undefined method `full_title' for #<RSpec::Core::ExampleGroup::Nested_1::Nested_4:0x007fb4b40e57e8>
# ./spec/requests/static_pages_spec.rb:33:in `block (3 levels) in <top (required)>'
Finished in 0.21306 seconds
9 examples, 4 failures
Failed examples:
rspec ./spec/requests/static_pages_spec.rb:11 # Static pages Home page
rspec ./spec/requests/static_pages_spec.rb:19 # Static pages Help page
rspec ./spec/requests/static_pages_spec.rb:26 # Static pages About page
rspec ./spec/requests/static_pages_spec.rb:33 # Static pages Contact page
Any ideas?

Answer 1

Do you have this line in your spec_helper.rb file?
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
Do you have a spec/support/utilities.rb file that looks like this?
include ApplicationHelper
def sign_in(user)
visit signin_path
fill_in "Email", with: user.email
fill_in "Password", with: user.password
click_button "Sign in"
# Sign in when not using Capybara as well.
cookies[:remember_token] = user.remember_token
end
Do you have a app/helpers/application_helper.rb file that looks like this?
module ApplicationHelper
# Returns the full title on a per-page basis.
def full_title(page_title)
base_title = "Ruby on Rails Tutorial Sample App"
if page_title.empty?
base_title
else
"#{base_title} | #{page_title}"
end
end
end
If so, I think your error should go away.

Answer 2

Hi there I also following Michael's tutorial for Rails 3.2 version and get the same error... try this with your current version of capybara
I changed the :text to :content and got it works, so it looks like this:
it { should have_selector('title', content: full_title('')) }
Hope it helps, cheers!

Answer 3

The exercise in Chapter 5 reads
"eliminate the need for the full_title test helper in Listing 5.26 by
writing tests for the original helper method, as shown in Listing
5.37. (You will have to create both the spec/helpers directory and the application_helper_spec.rb file.) Then include it into the test using
the code in Listing 5.38."
http://ruby.railstutorial.org/chapters/filling-in-the-layout.html#sec-layout_exercises
Does that mean I only need "include ApplicationHelper" my utilites.rb file since spec/helpers/application_helper_spec.rb now contains
require 'spec_helper'
describe ApplicationHelper do
describe "full_title" do
it "should include the page title" do
full_title("foo").should =~ /foo/
end
Having this setup I am still getting an error when I run my RSpec test. They only way I can get it to pass is having full_title defined in utilites.rb

Answer 4

The current formatting should look like this for your tests to pass:
it { should have_title(full_title('Help')) }
it { should have_title(full_title('About')) }
it { should have_title(full_title('Contact')) }

Answer 5

Considering this post is two years old, I assume you have figured this out. Nevertheless, try adding
RSpec.configure do |config|
...
config.include ApplicationHelper
...
end
within spec\requests\spec_helper.rb