def METHOD_NAME(self):
    # Verify chapter type display name
    chapter = BlockFactory.create(parent_location=self.course.location, category='chapter')
    self.assertEqual(xblock_type_display_name(chapter), 'Section')
    self.assertEqual(xblock_type_display_name('chapter'), 'Section')
    # Verify sequential type display name
    sequential = BlockFactory.create(parent_location=chapter.location, category='sequential')
    self.assertEqual(xblock_type_display_name(sequential), 'Subsection')
    self.assertEqual(xblock_type_display_name('sequential'), 'Subsection')
    # Verify unit type display names
    vertical = BlockFactory.create(parent_location=sequential.location, category='vertical')
    self.assertEqual(xblock_type_display_name(vertical), 'Unit')
    self.assertEqual(xblock_type_display_name('vertical'), 'Unit')
    # Verify child vertical type display name
    child_vertical = BlockFactory.create(parent_location=vertical.location, category='vertical',
                                         display_name='Child Vertical')
    self.assertEqual(xblock_type_display_name(child_vertical), 'Vertical')
    # Verify video type display names
    video = BlockFactory.create(parent_location=vertical.location, category="video")
    self.assertEqual(xblock_type_display_name(video), 'Video')
    self.assertEqual(xblock_type_display_name('video'), 'Video')
    # Verify split test type display names
    split_test = BlockFactory.create(parent_location=vertical.location, category="split_test")
    self.assertEqual(xblock_type_display_name(split_test), 'Content Experiment')
    self.assertEqual(xblock_type_display_name('split_test'), 'Content Experiment')