def METHOD_NAME(self):
    tax1 = self.roottaxon.hybridchildren1.create(
        name="Test 1",
        definition=self.roottaxontreedefitem.treedef,
        definitionitem=self.roottaxontreedefitem)
    with self.assertRaises(ProtectedError):
        self.roottaxon.delete()
    tax1.delete()
    tax2 = self.roottaxon.hybridchildren2.create(
        name="Test 2",
        definition=self.roottaxontreedefitem.treedef,
        definitionitem=self.roottaxontreedefitem)
    with self.assertRaises(ProtectedError):
        self.roottaxon.delete()
    tax2.delete()
    self.roottaxon.delete()