allure-pytest raises an exception when writing to log from a thread started inside pytest_generate_tests

使用 conftest.py 和 test_bug.py 示例重现该失败，从 pytest_generate_tests 和线程化日志处理器开始。跟踪回溯中显示的 Allure 步骤创建过程，并验证线程上下文的行为。当示例使用 pytest -s --alluredir=./allure 运行且不出现 StopIteration 异常时，即视为完成。

I'm submitting a ...

• bug report

What is the current behavior?

I have a function that creates a thread which writes some information in the log. When I try to call it from pytest_generate_tests allure-pytest raises the following StopIteration exception:

platform linux -- Python 3.9.16, pytest-7.4.0, pluggy-1.2.0
rootdir: /mnt/c/storage/allure_bug
plugins: allure-pytest-2.13.2
collecting ... Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python3.9/threading.py", line 980, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.9/threading.py", line 917, in run
    self._target(*self._args, **self._kwargs)
  File "/mnt/c/storage/allure_bug/conftest.py", line 17, in _thread
    log.warning('thread')
  File "/usr/lib/python3.9/logging/init.py", line 1458, in warning
    self._log(WARNING, msg, args, **kwargs)
  File "/usr/lib/python3.9/logging/init.py", line 1589, in _log
    self.handle(record)
  File "/usr/lib/python3.9/logging/init.py", line 1599, in handle
    self.callHandlers(record)
  File "/usr/lib/python3.9/logging/init.py", line 1661, in callHandlers
    hdlr.handle(record)
  File "/usr/lib/python3.9/logging/init.py", line 952, in handle
    self.emit(record)
  File "/mnt/c/storage/allure_bug/conftest.py", line 9, in emit
    with step(f'[{record.levelname}] {record.getMessage()}'):
  File "/tmp/test_venv/lib/python3.9/site-packages/allure_commons/_allure.py", line 179, in enter
    plugin_manager.hook.start_step(uuid=self.uuid, title=self.title, params=self.params)
  File "/tmp/test_venv/lib/python3.9/site-packages/pluggy/_hooks.py", line 433, in call
    return self._hookexec(self.name, self._hookimpls, kwargs, firstresult)
  File "/tmp/test_venv/lib/python3.9/site-packages/pluggy/_manager.py", line 112, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/tmp/test_venv/lib/python3.9/site-packages/pluggy/_callers.py", line 116, in _multicall
    raise exception.with_traceback(exception.traceback)
  File "/tmp/test_venv/lib/python3.9/site-packages/pluggy/_callers.py", line 80, in _multicall
    res = hook_impl.function(*args)
  File "/tmp/test_venv/lib/python3.9/site-packages/allure_pytest/listener.py", line 48, in start_step
    self.allure_logger.start_step(None, uuid, step)
  File "/tmp/test_venv/lib/python3.9/site-packages/allure_commons/reporter.py", line 128, in start_step
    parent_uuid = parent_uuid if parent_uuid else self._last_executable()
  File "/tmp/test_venv/lib/python3.9/site-packages/allure_commons/reporter.py", line 71, in _last_executable
    for _uuid in reversed(self._items):
  File "/tmp/test_venv/lib/python3.9/site-packages/allure_commons/reporter.py", line 39, in reversed
    return self.thread_context.reversed()
  File "/tmp/test_venv/lib/python3.9/site-packages/allure_commons/reporter.py", line 21, in thread_context
    uuid, last_item = next(reversed(self._thread_context[self._init_thread].items()))
StopIteration
collected 1 item

test_bug.py test
.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem

1. Install requirements pip install pytest allure-pytest
2. Prepare the demo test suite:

conftest.py

import logging
from threading import Thread

from allure import step

class AllureLoggerHandler(logging.Handler):
    def emit(self, record):
        with step(f'[{record.levelname}] {record.getMessage()}'):
            pass

log = logging.getLogger()
allure_handler = AllureLoggerHandler()
log.addHandler(allure_handler)

def _thread():
    log.warning('thread')

def pytest_generate_tests(metafunc):
    log.info('generate')
    thread = Thread(target=_thread)
    thread.start()
    thread.join(100)

test_bug.py

def test_allure_log():
    print('test')

3. Run test: pytest -s --alluredir=./allure

What is the expected behavior?

Test suite works without any exceptions

What is the motivation / use case for changing the behavior?

Please tell us about your environment:

• Allure version: 2.22.0
• Test framework: pytest 7.4.0
• Allure adaptor: allure-pytest 2.13.2

Other information