def METHOD_NAME(self):
    """Unit tests for class UpdateCheck using real network"""
    # real network
    for update in check_updates(True, False, None, None):
        if not update:
            continue
        ver = update[0]
        url = update[1]
        self.assertIsInstance(ver, (type(None), str))
        self.assertIsInstance(url, (type(None), str))