def METHOD_NAME(self):
    message_indices = [(0, 8000), (18000, 26000), (36000, 44000), (54000, 62000), (72000, 80000)]
    data = Signal(get_path_for_data_file("ask50.complex")).iq_array.data
    rect = afp_demod(data, 0.0509, "ASK", 2)
    for start, end in message_indices:
        center = detect_center(rect[start:end])
        self.assertGreaterEqual(center, 0.4, msg="{}/{}".format(start, end))
        self.assertLessEqual(center, 0.65, msg="{}/{}".format(start, end))