old_contents: """
  Tests for the fix_not_found management command
  """
  
  from django.core.management import call_command
  from xmodule.modulestore import ModuleStoreEnum
  from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
  from xmodule.modulestore.tests.factories import CourseFactory, ItemFactory
  
  
  class TestFixNotFound(ModuleStoreTestCase):
      """
      Tests for the fix_not_found management command
      """
      def test_fix_not_found_non_split(self):
          """
          The management command doesn't work on non split courses
          """
          course = CourseFactory(default_store=ModuleStoreEnum.Type.mongo)
          with self.assertRaises(SystemExit):
              call_command("fix_not_found", unicode(course.id))
  
      def test_fix_not_found(self):
          course = CourseFactory.create(default_store=ModuleStoreEnum.Type.split)
          ItemFactory.create(category='chapter', parent_location=course.location)
  
          # get course again in order to update its children list
          course = self.store.get_course(course.id)
  
          # create a dangling usage key that we'll add to the course's children list
          dangling_pointer = course.id.make_usage_key('chapter', 'DanglingPointer')
  
          course.children.append(dangling_pointer)
          self.store.update_item(course, self.user.id)
  
          # the course block should now point to two children, one of which
          # doesn't actually exist
          self.assertEqual(len(course.children), 2)
          self.assertIn(dangling_pointer, course.children)
  
          call_command("fix_not_found", unicode(course.id))
  
          # make sure the dangling pointer was removed from
          # the course block's children
          course = self.store.get_course(course.id)
          self.assertEqual(len(course.children), 1)
          self.assertNotIn(dangling_pointer, course.children)
  
new_contents: """
  Tests for the fix_not_found management command
  """
  
  from django.core.management import call_command
  from xmodule.modulestore import ModuleStoreEnum
  from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
  from xmodule.modulestore.tests.factories import CourseFactory, ItemFactory
  
  
  class TestFixNotFound(ModuleStoreTestCase):
      """
      Tests for the fix_not_found management command
      """
      def test_fix_not_found_non_split(self):
          """
          The management command doesn't work on non split courses
          """
          course = CourseFactory.create(default_store=ModuleStoreEnum.Type.mongo)
          with self.assertRaises(SystemExit):
              call_command("fix_not_found", unicode(course.id))
  
      def test_fix_not_found(self):
          course = CourseFactory.create(default_store=ModuleStoreEnum.Type.split)
          ItemFactory.create(category='chapter', parent_location=course.location)
  
          # get course again in order to update its children list
          course = self.store.get_course(course.id)
  
          # create a dangling usage key that we'll add to the course's children list
          dangling_pointer = course.id.make_usage_key('chapter', 'DanglingPointer')
  
          course.children.append(dangling_pointer)
          self.store.update_item(course, self.user.id)
  
          # the course block should now point to two children, one of which
          # doesn't actually exist
          self.assertEqual(len(course.children), 2)
          self.assertIn(dangling_pointer, course.children)
  
          call_command("fix_not_found", unicode(course.id))
  
          # make sure the dangling pointer was removed from
          # the course block's children
          course = self.store.get_course(course.id)
          self.assertEqual(len(course.children), 1)
          self.assertNotIn(dangling_pointer, course.children)
  
subject: Fix quality issue.