tests: poltergeist -> cuprite

rails_email_preview.gemspec

@@ -24,9 +24,9 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency 'i18n-tasks', '>= 0.9.25'
   s.add_development_dependency 'capybara', '>= 3.8.2'
+  s.add_development_dependency 'cuprite', '>= 0.10'
   s.add_development_dependency 'rspec-rails', '>= 3.8.0'
   s.add_development_dependency 'puma', '>= 3.12.0'
-  s.add_development_dependency 'poltergeist'
 
   s.version = RailsEmailPreview::VERSION
 end

spec/features/take_screenshots_spec.rb

@@ -1,6 +1,6 @@
 require 'spec_helper'
 unless ENV['TRAVIS']
-  describe 'Take screenshots', type: :feature, driver: :poltergeist do
+  describe 'Take screenshots', type: :feature, js: true do
     it 'list page' do
       visit rails_email_preview.rep_root_path
       screenshot! 'list'

spec/spec_helper.rb

@@ -10,23 +10,36 @@
 require 'rspec/rails'
 require 'capybara/rails'
 require 'capybara/rspec'
-require 'capybara/poltergeist'
 require 'fileutils'
 
 Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }
 
-poltergeist_opts = {
-    timeout:     160,
+require 'capybara/cuprite'
+
+browser_path = ENV['CHROMIUM_BIN'] || %w[
+  /usr/bin/chromium-browser
+  /snap/bin/chromium
+  /Applications/Chromium.app/Contents/MacOS/Chromium
+  /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome
+].find { |path| File.executable?(path) }
+
+Capybara.register_driver :cuprite do |app|
+  options = {
     window_size: [800, 800]
-}
-Capybara.register_driver(:poltergeist) { |app| Capybara::Poltergeist::Driver.new(app, poltergeist_opts) }
+  }
+  options[:browser_path] = browser_path if browser_path
+  Capybara::Cuprite::Driver.new(app, options)
+end
+
+Capybara.javascript_driver = ENV['CAPYBARA_JS_DRIVER']&.to_sym || :cuprite
+Capybara.asset_host = ENV['CAPYBARA_ASSET_HOST'] if ENV['CAPYBARA_ASSET_HOST']
+Capybara.configure do |config|
+  config.run_server = true
+  config.server_port = 7000
+  config.default_max_wait_time = 10
+end
 
 RSpec.configure do |config|
-  Capybara.configure do |capy|
-    capy.javascript_driver = :poltergeist
-    capy.run_server        = true
-    capy.server_port       = 7000
-  end
   config.include SaveScreenshots
   config.include WithLayout
 

spec/support/save_screenshots.rb

@@ -1,7 +1,7 @@
 require 'fileutils'
 module SaveScreenshots
   def screenshot!(name)
-    return unless [:selenium, :webkit, :poltergeist].include?(Capybara.current_driver)
+    return unless [:selenium, :webkit, :cuprite].include?(Capybara.current_driver)
     dir = File.expand_path('../screenshots', File.dirname(__FILE__))
     name = "#{name}.png" unless name =~ /\.png$/
     FileUtils.mkpath(dir) unless File.directory?(dir)