```ruby
require "acceptance/webdriver_test_case"

# :stopdoc:
class CategoriesTest < WebDriverTestCase
  def test_edit
    login_as :administrator

    open "/admin/categories"

    masters_35_plus_id = Category.find_by_name("Masters 35+").id
    assert_element :tag_name => "div"
    assert_element :xpath => "//div[@id='unknown_category_root']//div[@id='category_#{masters_35_plus_id}']"
    assert_no_element :xpath => "//div[@id='association_category_root']//div[@id='category_#{masters_35_plus_id}']"

    drag_and_drop_by -400, 116, :xpath => "//div[@id='unknown_category_root']//div[@id='category_#{masters_35_plus_id}']"
    wait_for_no_element :xpath => "//div[@id='unknown_category_root']//div[@id='category_#{masters_35_plus_id}']"
    wait_for_element :xpath => "//div[@id='association_category_root']//div[@id='category_#{masters_35_plus_id}']"
  end
end
```

Improve and simple categories admin test
user
```ruby
require "acceptance/webdriver_test_case"

# :stopdoc:
class CategoriesTest < WebDriverTestCase
  def test_edit
    login_as :administrator

    open "/admin/categories"

    masters_35_plus_id = Category.find_by_name("Masters 35+").id
    assert_element    :css => "#unknown_category_root #category_#{masters_35_plus_id}"
    assert_no_element :css => "#association_category_root #category_#{masters_35_plus_id}"

    drag_and_drop_by -400, 116, "category_#{masters_35_plus_id}"
    wait_for_element  :css => "#association_category_root #category_#{masters_35_plus_id}"
    assert_no_element :css => "#unknown_category_root #category_#{masters_35_plus_id}"

    women_4_id = Category.find_by_name("Women 4").id
    assert_element    :css => "#association_category_root #category_#{women_4_id}"
    assert_no_element :css => "#unknown_category_root #category_#{women_4_id}"

    drag_and_drop_by 400, 0, "category_#{women_4_id}"
    wait_for_element  :css => "#unknown_category_root #category_#{women_4_id}"
    assert_no_element :css => "#association_category_root #category_#{women_4_id}"
  end
end
```
assistant