gistfile1.txt

def test_monkeypatch_context_processor_with_exception(monkeypatch):
    class TerribleException(Exception):
        pass
        
    @staticmethod
    def _func():
        raise TerribleException('terrible!')
        
    monkeypatch.setattr(SampleNew, 'hello', _func)
    with pytest.raises(TerribleException):
        assert SampleNew.hello()
    monkeypatch.undo()
    assert SampleNew.hello() is True