Improved test.

db/migrate/20160805000001_add_permission.rb

@@ -327,6 +327,7 @@ class AddPermission < ActiveRecord::Migration
       name: 'chat',
       note: 'Access to %s',
       preferences: {
+        disabled: true,
         translations: ['Chat']
       },
     )

test/browser/maintenance_test.rb

@@ -270,6 +270,7 @@ class MaintenanceTest < TestCase
       browser:  browser1,
       css:      '#content .js-modeSetting',
       type:     'on',
+      no_check: true,
     )
 
     # check warning
@@ -351,6 +352,7 @@ class MaintenanceTest < TestCase
       browser:  browser1,
       css:      '#content .js-modeSetting',
       type:     'on',
+      no_check: true,
     )
     # check warning
     alert = browser1.switch_to.alert

test/browser_test_helper.rb

@@ -685,6 +685,7 @@ class TestCase < Test::Unit::TestCase
     browser: browser1,
     css:  '.some_class',
     type: 'on', # 'off'
+    no_check: true, # do not check is switch has changed, in case if js alert
   )
 
 =end
@@ -697,24 +698,29 @@ class TestCase < Test::Unit::TestCase
 
     element = instance.find_elements(css: "#{params[:css]} input[type=checkbox]")[0]
     checked = element.attribute('checked')
+
     if !checked
       if params[:type] == 'on'
         instance.find_elements(css: "#{params[:css]} label")[0].click
         sleep 2
 
+        if params[:no_check] != true
           element = instance.find_elements(css: "#{params[:css]} input[type=checkbox]")[0]
           checked = element.attribute('checked')
           raise 'Switch not on!' if !checked
         end
+      end
     elsif params[:type] == 'off'
       instance.find_elements(css: "#{params[:css]} label")[0].click
       sleep 2
 
+      if params[:no_check] != true
         element = instance.find_elements(css: "#{params[:css]} input[type=checkbox]")[0]
         checked = element.attribute('checked')
         raise 'Switch not off!' if checked
       end
     end
+  end
 
 =begin