Capybara::Poltergeist Status error, failed to reach server - ruby-on-rails-4

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.

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

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.

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