# -*- coding: utf-8 -*-
"""
This program has been developed by students from the bachelor Computer Science at Utrecht
University within the Software Project course.
© Copyright Utrecht University (Department of Information and Computing Sciences)
"""

import pytest
from robot_interface.endpoints.receiver_base import ReceiverBase


def test_receiver_base_not_implemented(monkeypatch):
    """
    Ensure that the base ReceiverBase raises NotImplementedError when
    handle_message is called on a subclass that does not implement it.
    """
    # Patch the __abstractmethods__ to allow instantiation
    monkeypatch.setattr(ReceiverBase, "__abstractmethods__", frozenset())

    class DummyReceiver(ReceiverBase):
        pass

    dummy = DummyReceiver("dummy")  # Can now instantiate

    with pytest.raises(NotImplementedError):
        dummy.handle_message({"endpoint": "dummy", "data": None})