Adjust spec and add select2 helper for spec

spec/features/admin/editor_settings_spec.rb

@@ -1,4 +1,6 @@
-RSpec.feature 'Rich Editor Settings', :js do
+RSpec.feature 'Rich Editor Settings', js: true do
+  include ::Select2Helper
+
   stub_authorization!
 
   context '#edit' do
@@ -26,9 +28,11 @@
       scenario 'will be applied when used' do
         visit spree.edit_admin_editor_settings_path
 
-        select2 'TinyMCE', from: 'Rich Editor engine'
+        select2_choose('current_editor', choose: 'TinyMCE')
         click_button 'Update'
 
+        expect(page).to have_content('successfully updated!')
+
         visit spree.edit_admin_product_path(product)
         expect(page).to have_css '.mce-tinymce', match: :one
       end
@@ -38,9 +42,11 @@
       scenario 'will be applied when used' do
         visit spree.edit_admin_editor_settings_path
 
-        select2 'CKEditor', from: 'Rich Editor engine'
+        select2_choose('current_editor', choose: 'CKEditor')
         click_button 'Update'
 
+        expect(page).to have_content('successfully updated!')
+
         visit spree.edit_admin_product_path(product)
         expect(page).to have_css '.cke_editor_product_description', match: :one
       end

spec/support/select2_helper.rb

@@ -0,0 +1,18 @@
+module Select2Helper
+  def select2_choose(id, options)
+    options[:query] ||= options[:choose]
+
+    page.execute_script %Q{
+      $('#s2id_#{id} .select2-offscreen')
+        .trigger('keydown')
+        .val('#{options[:query]}')
+        .trigger('keyup');
+    }
+
+    if options[:first]
+      find('.select2-highlighted .select2-match').click
+    else
+      find('.select2-result-label', text: options[:choose]).click
+    end
+  end
+end