IndexError when running a check in a thread

[fperrin]

Hi,

When I run the following test:

import pytest_check as check
from concurrent.futures.thread import ThreadPoolExecutor

def force_fail():
    check.equal(1 + 1, 3, "Is 1+1 equal to 3?")

def test_thread():
    with ThreadPoolExecutor() as executor:
        task = executor.submit(force_fail)
        task.result()

pytest-check fails with the following:

venv/lib/python3.11/site-packages/pytest_check/pseudo_traceback.py:35: in _build_pseudo_trace_str
    (file, line, func, context) = get_full_context(level)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
level = 10
    def get_full_context(level):
>       (_, filename, line, funcname, contextlist) = inspect.stack()[level][0:5]
E       IndexError: list index out of range

The above is with python3.11 on macOS, but I've seen the same error on our Linux executors.

I am running:

$ pip freeze
iniconfig==2.0.0
packaging==23.1
pluggy==1.0.0
pytest==7.3.1
pytest-check==2.1.4
$ python --version
Python 3.11.3

[okken]

merged and released as version 2.1.5