Capybara::Poltergeist Status error, failed to reach server

Question

I am trying to make some tests with Rspec/Capybara/Poltergeist on my Rails 4 application, Phantomjs is installed (version 2.2.1), but I always get this error :

Failure/Error: visit(perfect_landing_page_path)

Capybara::Poltergeist::StatusFailError:

Request to 'http://127.0.0.1:49623/path' failed to reach server, check DNS and/or server status

The test i'm working on :

require 'rails_helper'

RSpec.feature 'Subscription', :type => :feature do

  let!(:plan) { create(:plan) }
  let!(:landing_page) { create(:landing_page) }

  before(:each) { landing_page.default_plan = plan }

  describe 'landing_page#perfect_show' do
    scenario 'form display', js: true do
      plan_2 = create(:plan)
      plan_3 = create(:plan)
      landing_page.plans << plan_2
      landing_page.plans << plan_3
      visit(perfect_landing_page_path)
      expect(page).to have_css(".start-now", count: 3)
      first(".start-now").click
      expect(page).to have_css("#new_user")
    end

  end

end

My Gemfile looks like this :

  gem 'rspec-rails', '~> 3.0'
  gem 'factory_girl_rails'
  gem 'guard-rspec'

group :test do
  gem 'database_cleaner'
  gem 'capybara'
  gem 'capybara-screenshot'
  gem 'poltergeist'
  gem 'selenium-webdriver'
  gem 'shoulda-matchers', require: false
  gem 'show_me_the_cookies'
end

My spec/support/capybara.rb file :

require 'capybara/rails'
require 'capybara/rspec'
require 'capybara-screenshot/rspec'

require "capybara/poltergeist" # Add this line to require poltergeist
require 'selenium-webdriver'

Capybara.register_driver :poltergeist do |app|
  Capybara::Poltergeist::Driver.new(app, {:js_errors => false, :default_max_wait_time => 30, :timeout => 30, phantomjs_options: [
                             '--load-images=no',
                             '--ignore-ssl-errors=true',
                             '--ssl-protocol=any']})
end

Capybara.register_driver :poltergeist_debug do |app|
  Capybara::Poltergeist::Driver.new(app, :inspector => true)
end

Capybara.configure do |config|
  config.javascript_driver = :poltergeist
  config.ignore_hidden_elements = true
  config.default_max_wait_time = 30
end

My spec_helper.rb file :

require 'capybara/rspec'

RSpec.configure do |config|

  config.expect_with :rspec do |expectations|
    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
  end

  config.mock_with :rspec do |mocks|
    mocks.verify_partial_doubles = true
  end

  config.filter_run :focus
  config.run_all_when_everything_filtered = true

Did someone encounter this problem before ? Does anyone have a solution for this ? I have been banging my head for days looking on the web... Thank you very much.

PS : it works fine on my friend's mac (Yosemite or El Capitan), just not on mine.

Fidole

Can you post the full error message? What you've posted is truncated and missing the most important part (the detail of the error) – Hoofer

I updated the answer to add a whitelist alternative – Hoofer

Answer 1

I was having this problem in CI (CodeShip).

Adding a call to bundle exec rake assets:precompile at the end of the setup commands seemed to fix it:

CodeShip CI Setup Commands:

rvm use 2.3.4 --install
bundle install
export RAILS_ENV=test
bundle exec rake db:schema:load
bundle exec rake assets:precompile

Also had a whitelist per @agbodike but in the rails_helper.rb

config.before(:each, js: true) do
  page.driver.browser.url_whitelist = ["127.0.0.1"]
end

Pope

Answer 2

I had the same issue and it was due to a 3rd party script timing out. You can prevent loading of 3rd party scripts with a blacklist. For example:

config.before(:each, js: true) do
  page.driver.browser.url_blacklist = ["http://use.typekit.net"]
end

would prevent any URL starting with http://use.typekit.net from being called for each test that uses the js driver. More information can be found at:

https://robots.thoughtbot.com/speed-up-javascript-capybara-specs-by-blacklisting-urls

Alternatively you can use a whitelist:

config.before(:each, js: true) do
  page.driver.browser.url_whitelist = ["127.0.0.1"]
end

which will block all requests not to 127.0.0.1

I placed the configuration in spec/feature_helper.rb to ensure it was only set for feature specs.

Hoofer

Thanks for the reply. The bug actually appears randomly now... but it's also true that the tests are taking a very long time to run, and I tried your method, but it didn't change anything for me. – Fidole

Where would you put that statement? – Corrinacorrine

I have it in spec/feature_helper.rb – Hoofer

Answer 3

You can avoid these by precompile the assets before tests. And the code is:

RSpec.configure do |config|
  config.before :all do
    ENV['PRECOMPILE_ASSETS'] ||= begin
      case self.class.metadata[:type]
      when :feature, :view
        STDOUT.write "Precompiling assets..."

        require 'rake'
        Rails.application.load_tasks
        Rake::Task['assets:precompile'].invoke

        STDOUT.puts " done."
        Time.now.to_s
      end
    end
  end
end

more info

Exhume