Merge branch 'rs-capybara-screenshot' into 'master'

Add capybara-screenshot gem

This is a handy little gem that automatically saves the page and a screenshot when a Capybara test fails to `tmp/capybara/` so you can easily see why it might have failed without adding your own `save_and_open_page` directive in the code.

Also reduces the timeout for Capybara tests when not in a CI environment.

See merge request !578

Gemfile

@@ -223,14 +223,13 @@ end
 group :development, :test do
   gem 'coveralls', require: false
   gem 'rubocop', '0.28.0', require: false
-  # gem 'rails-dev-tweaks'
   gem 'spinach-rails'
   gem "rspec-rails", '2.99'
-  gem "capybara", '~> 2.2.1'
+  gem 'capybara', '~> 2.2.1'
+  gem 'capybara-screenshot', '~> 1.0.0'
   gem "pry-rails"
   gem "awesome_print"
   gem "database_cleaner"
-  gem "launchy"
   gem 'factory_girl_rails'
 
   # Prevent occasions where minitest is not bundled in packaged versions of ruby (see #3826)

Gemfile.lock

@@ -85,6 +85,9 @@ GEM
       rack (>= 1.0.0)
       rack-test (>= 0.5.4)
       xpath (~> 2.0)
+    capybara-screenshot (1.0.9)
+      capybara (>= 1.0, < 3)
+      launchy
     carrierwave (0.9.0)
       activemodel (>= 3.2.0)
       activesupport (>= 3.2.0)
@@ -677,6 +680,7 @@ DEPENDENCIES
   byebug
   cal-heatmap-rails (~> 0.0.1)
   capybara (~> 2.2.1)
+  capybara-screenshot (~> 1.0.0)
   carrierwave
   charlock_holmes
   coffee-rails
@@ -726,7 +730,6 @@ DEPENDENCIES
   jquery-turbolinks
   jquery-ui-rails
   kaminari (~> 0.15.1)
-  launchy
   letter_opener
   minitest (~> 5.3.0)
   mousetrap-rails

features/support/capybara.rb

@@ -0,0 +1,24 @@
+require 'spinach/capybara'
+require 'capybara/poltergeist'
+
+# Give CI some extra time
+timeout = (ENV['CI'] || ENV['CI_SERVER']) ? 90 : 10
+
+Capybara.javascript_driver = :poltergeist
+Capybara.register_driver :poltergeist do |app|
+  Capybara::Poltergeist::Driver.new(app, js_errors: true, timeout: timeout)
+end
+
+Spinach.hooks.on_tag("javascript") do
+  Capybara.current_driver = Capybara.javascript_driver
+end
+
+Capybara.default_wait_time = timeout
+Capybara.ignore_hidden_elements = false
+
+unless ENV['CI'] || ENV['CI_SERVER']
+  require 'capybara-screenshot/spinach'
+
+  # Keep only the screenshots generated from the last failing test suite
+  Capybara::Screenshot.prune_strategy = :keep_last_run
+end

features/support/db_cleaner.rb

@@ -0,0 +1,11 @@
+require 'database_cleaner'
+
+DatabaseCleaner.strategy = :truncation
+
+Spinach.hooks.before_scenario do
+  DatabaseCleaner.start
+end
+
+Spinach.hooks.after_scenario do
+  DatabaseCleaner.clean
+end

features/support/env.rb

@@ -11,10 +11,11 @@ ENV['RAILS_ENV'] = 'test'
 require './config/environment'
 require 'rspec'
 require 'rspec/expectations'
-require 'database_cleaner'
-require 'spinach/capybara'
 require 'sidekiq/testing/inline'
 
+require_relative 'capybara'
+require_relative 'db_cleaner'
+
 %w(select2_helper test_env repo_helpers).each do |f|
   require Rails.root.join('spec', 'support', f)
 end
@@ -22,29 +23,6 @@ end
 Dir["#{Rails.root}/features/steps/shared/*.rb"].each { |file| require file }
 
 WebMock.allow_net_connect!
-#
-# JS driver
-#
-require 'capybara/poltergeist'
-Capybara.javascript_driver = :poltergeist
-Capybara.register_driver :poltergeist do |app|
-  Capybara::Poltergeist::Driver.new(app, js_errors: false, timeout: 90)
-end
-Spinach.hooks.on_tag("javascript") do
-  ::Capybara.current_driver = ::Capybara.javascript_driver
-end
-Capybara.default_wait_time = 60
-Capybara.ignore_hidden_elements = false
-
-DatabaseCleaner.strategy = :truncation
-
-Spinach.hooks.before_scenario do
-  DatabaseCleaner.start
-end
-
-Spinach.hooks.after_scenario do
-  DatabaseCleaner.clean
-end
 
 Spinach.hooks.before_run do
   include RSpec::Mocks::ExampleMethods

spec/spec_helper.rb

@@ -10,15 +10,9 @@ end
 ENV["RAILS_ENV"] ||= 'test'
 require File.expand_path("../../config/environment", __FILE__)
 require 'rspec/rails'
-require 'capybara/rails'
-require 'capybara/rspec'
 require 'webmock/rspec'
 require 'email_spec'
 require 'sidekiq/testing/inline'
-require 'capybara/poltergeist'
-
-Capybara.javascript_driver = :poltergeist
-Capybara.default_wait_time = 10
 
 # Requires supporting ruby files with custom matchers and macros, etc,
 # in spec/support/ and its subdirectories.

spec/support/capybara.rb

@@ -0,0 +1,21 @@
+require 'capybara/rails'
+require 'capybara/rspec'
+require 'capybara/poltergeist'
+
+# Give CI some extra time
+timeout = (ENV['CI'] || ENV['CI_SERVER']) ? 90 : 10
+
+Capybara.javascript_driver = :poltergeist
+Capybara.register_driver :poltergeist do |app|
+  Capybara::Poltergeist::Driver.new(app, js_errors: true, timeout: timeout)
+end
+
+Capybara.default_wait_time = timeout
+Capybara.ignore_hidden_elements = true
+
+unless ENV['CI'] || ENV['CI_SERVER']
+  require 'capybara-screenshot/rspec'
+
+  # Keep only the screenshots generated from the last failing test suite
+  Capybara::Screenshot.prune_strategy = :keep_last_run
+end