def METHOD_NAME(self):
    # 3 packets:                       |             |       |
    data, tags = self.setup_data_tags(
        ((1, 2, 3, 4), (1, 2), tuple(range(25))))
    src = blocks.vector_source_b(data, tags=tags)
    header = digital.packet_headergenerator_bb(12, self.tsb_key)
    sink = blocks.vector_sink_b()
    self.tb.connect(src, header, sink)
    self.tb.run()
    expected_data = [
        0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0
    ]
    self.assertEqual(sink.data(), expected_data)