Getting Selenium WebDriver to use Chrome in RSpec/Rails

Question

I'm using Selenium WebDriver with my RSpec tests on a Rails 4 web app. There's no problem using Firefox in my tests, but I can't get the Chrome web driver to work.

This is what I've done:

1. Downloaded Chrome driver (version 2.9) from http://chromedriver.storage.googleapis.com/index.html

2. Unzipped and put the driver into /usr/bin/

   sudo mv chromedriver /usr/bin/
   sudo chmod +x /usr/bin/chromedriver
   

3. Added this to spec_helper.rb:

   Capybara.register_driver :selenium do |app|
     Capybara::Selenium::Driver.new(app, :browser => :chrome)
   end
   

4. Modify my test (page_spec.rb) to use Chrome for web driver.

   require 'rspec_gem'
   require 'rspec-expectations'
   require 'selenium-webdriver'
   
   driver = Selenium::WebDriver.for :chrome
   

5. This is the dev and test group in my Gemfile.rb:

   group :development, :test do
     gem 'sqlite3', '1.3.7'               # Using sqlite for development builds
     gem 'rspec-rails', '2.13.2'          # Unit Test tool
     gem 'annotate', '2.5.0'              # For annotating models
     gem 'simplecov'                      # Code coverage analysis.
     gem 'capybara', '~>2.0'              # Headless browser for test.
     gem 'selenium-webdriver'
     gem 'database_cleaner', '1.2.0' # github: 'bmabey/database_cleaner'
     gem 'better_errors'                  # Replaces standard rails errors page
     gem 'binding_of_caller'
     gem 'factory_girl_rails', '4.1.0'    # Generate user factories for testing.
     gem 'faker', '1.1.2'                 # Tool to seed the user database.
     gem 'rspec_gem'                      # For Selenium tests
     gem 'rspec-expectations'
     gem 'debugger'
   end
   

6. I run the test using this command:

   bundle exec rspec -fd page_spec.rb
   

This is the error I get when I try to run the test:

/home/jchan/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.42.0/lib/selenium/webdriver/chrome/service.rb:50:in `start': unable to connect to chromedriver http://127.0.0.1:9516 (Selenium::WebDriver::Error::WebDriverError)

I'm not sure why it cannot connect to the chromedriver.

Answer 1

add codes in spec_helper.rb:

    Capybara.register_driver :chrome do |app|

     Capybara::Selenium::Driver.new(app, :browser => :chrome)

   end

   Capybara.javascript_driver = :chrome

add this gem to Gemfile:

 gem 'chromedriver-helper'

Then you will connect to the chromedriver

Answer 2

If you still use 'chromedriver-helper' please note that 'chromedriver-helper' is deprecated after 2019-03-31. Please update to use the 'webdrivers' gem instead.