fix linter issues

Author: justin808

spec/rails_helper.rb

@@ -56,19 +56,25 @@
   case driver
   when :poltergeist, :poltergeist_errors_ok, :poltergeist_no_animations
     require "capybara/poltergeist"
-    opts = {
-      # Leaving animations off, as a sleep was still needed.
-      extensions: ["#{Rails.root}/spec/support/phantomjs-disable-animations.js"],
+    window_opts = {
       window_size: [1280, 720],
       screen_size: [1600, 1200]
     }
 
+    Capybara.register_driver :poltergeist do |app|
+      Capybara::Poltergeist::Driver.new(app, window_opts)
+    end
+
+    no_animation_opts = window_opts.merge( # Leaving animations off, as a sleep was still needed.
+      extensions: ["#{Rails.root}/spec/support/phantomjs-disable-animations.js"]
+    )
+
     Capybara.register_driver :poltergeist_no_animations do |app|
-      Capybara::Poltergeist::Driver.new(app, opts)
+      Capybara::Poltergeist::Driver.new(app, no_animation_opts)
     end
 
     Capybara.register_driver :poltergeist_errors_ok do |app|
-      Capybara::Poltergeist::Driver.new(app, opts.merge(js_errors: false))
+      Capybara::Poltergeist::Driver.new(app, no_animation_opts.merge(js_errors: false))
     end
   when :selenium_chrome
     DriverRegistration.register_selenium_chrome