def METHOD_NAME(self) -> None:
    self.merger.merge(self.data)
    self.merger.merge(self.config)
    self.merger.merge(Style({"title": {"backgroundColor": "#A0A0A0"}}))
    data = Data()
    data.add_record(["Pop", "Hard", 114])
    self.assertRaises(ValueError, self.merger.merge, data)
    self.assertRaises(ValueError, self.merger.merge, Config({"title": "Test"}))
    self.assertRaises(ValueError, self.merger.merge, Style(None))