def test_invalid_ack():
data = Packet.data(
checksum_mode=ChecksumMode.Disabled,
transfer_mode=TransferMode.AckEveryPacket,
fragment_amount=1,
fragment_number=0,
message_id=1,
payload_data=b'dummy',
)
packet = Packet.ack(base_packet=data, )
with pytest.raises(ValueError):
Packet.ack(base_packet=packet, )
def test_message_type_ack():
data = Packet.data(
checksum_mode=ChecksumMode.Disabled,
transfer_mode=TransferMode.AckEveryPacket,
fragment_amount=1,
fragment_number=0,
message_id=1,
payload_data=b'dummy',
)
packet = Packet.ack(base_packet=data, )
assert packet.message_type is MessageType.Ack
def test_is_duplicate_ack_false():
data = Packet.data(
checksum_mode=ChecksumMode.Disabled,
transfer_mode=TransferMode.AckEveryPacket,
fragment_amount=1,
fragment_number=0,
message_id=1,
payload_data=b'dummy',
)
packet = Packet.ack(base_packet=data, )
assert not packet.is_duplicate
def test_message_id_and_data_length_ack():
data = Packet.data(
checksum_mode=ChecksumMode.Disabled,
transfer_mode=TransferMode.AckEveryPacket,
fragment_amount=1,
fragment_number=0,
message_id=12345,
payload_data=b'dummy',
)
packet = Packet.ack(base_packet=data, )
assert packet.message_id == 12345
assert packet.message_data_length == 0
def test_fragment_ack_multiple_last():
data = Packet.data(
checksum_mode=ChecksumMode.Disabled,
transfer_mode=TransferMode.AckEveryPacket,
fragment_amount=10,
fragment_number=9,
message_id=1,
payload_data=b'dummy',
)
packet = Packet.ack(base_packet=data, )
assert packet.fragment_amount == 10
assert packet.fragment_number == 9
assert not packet.is_single
assert packet.is_last
def test_encode_decode_ack():
data = Packet.data(
checksum_mode=ChecksumMode.Disabled,
transfer_mode=TransferMode.AckEveryPacket,
fragment_amount=10,
fragment_number=5,
message_id=12345,
payload_data=b'dummy',
)
encoded = Packet.ack(base_packet=data, )
encoded_bytes = bytes(encoded)
decoded = Packet.from_bytes(encoded_bytes)
decoded_bytes = decoded.as_bytes
assert encoded_bytes == decoded_bytes