c486039053
The tests/ directory held 50 laboratory programs and no tests. They model channels, run hundreds of repetitions and write CSV, PNG and reports; calling that a test suite blocked introducing a real one, because any pytest run would have collected the labs and re-executed every experiment. - move all 50 lab programs to experiments/ with git mv, preserving history - rewrite the 38 cross-imports between labs from tests.labNNN to experiments.labNNN - leave tests/ empty for actual fast checks of protocol/ - point quick_gate and the hook at the new layout and add experiments/ to the syntax sweep - update the paths quoted in the Lab042 specification and the verifier agent definition This also defuses the import-time work finding without touching 41 files: the labs still create directories and write files on import, but nothing imports them now except the gate, which does so deliberately. Gate passes: syntax clean, protocol imports, 15 lab modules import, 2 functional suites run. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
120 lines
2.9 KiB
Python
120 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Created on Fri Jul 10 17:19:11 2026
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@author: user
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"""
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"""
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Lab004. Проверка модуля protocol.packet.
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Проверяем:
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1. Формирование пакета.
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2. Разбор исправного пакета.
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3. Восстановление текста.
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4. Обнаружение повреждения CRC.
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"""
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from protocol.packet import (
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CRCError,
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HEADER_SIZE,
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MESSAGE_TYPE_TEXT,
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build_packet,
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parse_packet,
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)
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# ============================================================
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# Формирование пакета
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# ============================================================
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message = "ПРИВЕТ SDR"
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payload = message.encode("utf-8")
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sequence_number = 7
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packet = build_packet(
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payload=payload,
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message_type=MESSAGE_TYPE_TEXT,
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sequence_number=sequence_number,
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)
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print("Исходное сообщение:")
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print(message)
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print("\nСформированный пакет:")
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print(packet.hex(" "))
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print("\nРазмер пакета:")
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print(len(packet), "байт")
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# ============================================================
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# Разбор исправного пакета
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# ============================================================
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parsed_packet = parse_packet(packet)
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restored_message = parsed_packet.payload.decode("utf-8")
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print("\n--- Разобранный пакет ---")
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print("Версия:")
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print(parsed_packet.version)
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print("\nТип сообщения:")
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print(parsed_packet.message_type)
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print("\nПорядковый номер:")
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print(parsed_packet.sequence_number)
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print("\nПолезная нагрузка:")
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print(parsed_packet.payload)
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print("\nВосстановленное сообщение:")
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print(restored_message)
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assert parsed_packet.message_type == MESSAGE_TYPE_TEXT
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assert parsed_packet.sequence_number == sequence_number
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assert restored_message == message
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print("\nИсправный пакет успешно разобран.")
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# ============================================================
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# Повреждение одного бита
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# ============================================================
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corrupted_packet = bytearray(packet)
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# В строке "ПРИВЕТ SDR" буква S находится
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# по индексу 13 внутри полезной нагрузки.
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payload_byte_index = 13
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packet_byte_index = (
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HEADER_SIZE + payload_byte_index
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)
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corrupted_packet[packet_byte_index] ^= 0x01
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print("\n--- Проверка повреждённого пакета ---")
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try:
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parse_packet(corrupted_packet)
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except CRCError as error:
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print("Повреждение обнаружено.")
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print(error)
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else:
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raise AssertionError(
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"Ошибка: повреждённый пакет был принят как исправный"
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)
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print("\nВсе проверки Lab004 успешно выполнены.") |