Python Message.decode示例

示例#1

文件： test_protocol.py 项目： kngenie/kafka-python

def test_decode_message_validate_crc():
    encoded = b''.join([
        struct.pack('>i', -1427009701), # CRC
        struct.pack('>bb', 0, 0),       # Magic, flags
        struct.pack('>i', 3),           # Length of key
        b'key',                         # key
        struct.pack('>i', 4),           # Length of value
        b'test',                        # value
    ])
    decoded_message = Message.decode(encoded)
    assert decoded_message.validate_crc() is True

    encoded = b''.join([
        struct.pack('>i', 1234),           # Incorrect CRC
        struct.pack('>bb', 0, 0),       # Magic, flags
        struct.pack('>i', 3),           # Length of key
        b'key',                         # key
        struct.pack('>i', 4),           # Length of value
        b'test',                        # value
    ])
    decoded_message = Message.decode(encoded)
    assert decoded_message.validate_crc() is False

示例#2

def test_decode_message_validate_crc():
    encoded = b''.join([
        struct.pack('>i', -1427009701),  # CRC
        struct.pack('>bb', 0, 0),  # Magic, flags
        struct.pack('>i', 3),  # Length of key
        b'key',  # key
        struct.pack('>i', 4),  # Length of value
        b'test',  # value
    ])
    decoded_message = Message.decode(encoded)
    assert decoded_message.validate_crc() is True

    encoded = b''.join([
        struct.pack('>i', 1234),  # Incorrect CRC
        struct.pack('>bb', 0, 0),  # Magic, flags
        struct.pack('>i', 3),  # Length of key
        b'key',  # key
        struct.pack('>i', 4),  # Length of value
        b'test',  # value
    ])
    decoded_message = Message.decode(encoded)
    assert decoded_message.validate_crc() is False

示例#3

文件： test_protocol.py 项目： kngenie/kafka-python

def test_decode_message():
    encoded = b''.join([
        struct.pack('>i', -1427009701), # CRC
        struct.pack('>bb', 0, 0),       # Magic, flags
        struct.pack('>i', 3),           # Length of key
        b'key',                         # key
        struct.pack('>i', 4),           # Length of value
        b'test',                        # value
    ])
    decoded_message = Message.decode(encoded)
    msg = Message(b'test', key=b'key')
    msg.encode() # crc is recalculated during encoding
    assert decoded_message == msg

示例#4

def test_decode_message():
    encoded = b''.join([
        struct.pack('>i', -1427009701),  # CRC
        struct.pack('>bb', 0, 0),  # Magic, flags
        struct.pack('>i', 3),  # Length of key
        b'key',  # key
        struct.pack('>i', 4),  # Length of value
        b'test',  # value
    ])
    decoded_message = Message.decode(encoded)
    msg = Message(b'test', key=b'key')
    msg.encode()  # crc is recalculated during encoding
    assert decoded_message == msg