def test_sequence_increment(): # Test that the sequence number can be increased and the wrap around at 255 is correct built_packet = DataPacket(cid=(16, 1, 15, 2, 14, 3, 13, 4, 12, 5, 11, 6, 10, 7, 9, 8), sourceName='Test Name', universe=30) built_packet.sequence = 78 built_packet.sequence_increase() assert built_packet.sequence == 79 built_packet.sequence = 255 built_packet.sequence_increase() assert built_packet.sequence == 0
def test_property_adjustment_and_deconstruction(): # Converting DataPacket -> bytes -> DataPacket should produce the same result, # but with changed properties that are not the default built_packet = DataPacket(cid=(16, 1, 15, 2, 14, 3, 13, 4, 12, 5, 11, 6, 10, 7, 9, 8), sourceName='Test Name', universe=30) built_packet.cid = tuple(range(16)) built_packet.sourceName = '2nd Test Name' built_packet.universe = 31425 built_packet.dmxData = ((200, ) + tuple(range(255, 0, -1)) + tuple(range(255)) + (0, )) built_packet.priority = 12 built_packet.sequence = 45 built_packet.option_StreamTerminated = True built_packet.option_PreviewData = True built_packet.option_ForceSync = True built_packet.syncAddr = 34003 built_packet.dmxStartCode = 8 read_packet = DataPacket.make_data_packet(built_packet.getBytes()) assert read_packet.cid == tuple(range(16)) assert read_packet.sourceName == '2nd Test Name' assert read_packet.universe == 31425 assert read_packet.dmxData == ((200, ) + tuple(range(255, 0, -1)) + tuple(range(255)) + (0, )) assert read_packet.priority == 12 assert read_packet.sequence == 45 assert read_packet.option_StreamTerminated is True assert read_packet.option_PreviewData is True assert read_packet.option_ForceSync is True assert read_packet.syncAddr == 34003 assert read_packet.dmxStartCode == 8