python runtime_error ai_generated true

test_foo 拆卸时出错 RuntimeError: 在 throw() 之后生成器没有停止

ERROR at teardown of test_foo RuntimeError: generator didn't stop after throw()

ID: python/pytest-session-fixture-finalizer-error

其他格式: JSON · Markdown 中文 · English
80%修复率
82%置信度
0证据数
2024-10-08首次发现

版本兼容性

版本状态引入弃用备注
7.x active — — —
8.x active — — —

根因分析

基于 yield 的 fixture 在 yield 之后的 teardown 中引发异常，生成器未捕获，pytest 的 finalizer 机制报告生成器仍在运行。

English

A yield-based fixture raised an exception inside its teardown after the yield, and the generator did not catch it, so pytest's finalizer machinery reports the generator as still running.

generic

解决方案

  1. 92% 成功率 
    @pytest.fixture
def client():
    c = connect()
    try:
        yield c
    finally:
        try:
            c.close()
        except Exception as e:
            log.warning('close failed: %s', e)
  2. 90% 成功率 
    @pytest.fixture
def client(request):
    c = connect()
    request.addfinalizer(c.close)
    return c

无效尝试

常见但无效的做法:

  1. 80% 失败

    The error occurs during fixture teardown, outside the test body, so the test's try/except never sees it.

  2. 70% 失败

    Loses teardown entirely; resources are never released and the error is replaced by a leak.