def METHOD_NAME(self):
    view = tile_views.MetaTileManager(self.portal, self.request)
    self.request.form.update({
        'metaId': self.slot_id
    })
    annotations = IAnnotations(self.portal)
    self.assertEqual(
        len([k for k in annotations.keys()
             if k.startswith(TILE_ANNOTATIONS_KEY_PREFIX)]),
        3
    )
    view.copy_meta()
    self.assertEqual(
        len([k for k in annotations.keys()
             if k.startswith(TILE_ANNOTATIONS_KEY_PREFIX)]),
        6
    )