def METHOD_NAME(self):
    """ Very simple test, 2 bits -> 1 """
    src_data = [0b11, 0b01, 0b10]
    expected_data = [0b1, 0b1, 0b1, 0b0, 0b0, 0b1]
    k = 2
    l = 1
    src = blocks.vector_source_b(src_data, False, 1)
    repack = blocks.repack_bits_bb(k, l)
    sink = blocks.vector_sink_b()
    self.tb.connect(src, repack, sink)
    self.tb.run()
    self.assertEqual(sink.data(), expected_data)