Pretty pytest exceptions for threads

[jordanisaacs]

I have tests that spawn threads which can raise exceptions causing the test to fail. Is there a way to pass in the nice pytest exception handler/formatter to those threads so I can get more then just a stack trace. E.g. I want to show the locals.

Right now, I just print the exception and then call assert False on the main thread. This results in a nice pytest exception but in the wrong place. From what I can tell

pytest/src/_pytest/_code/code.py

Line 618 in 5a01583

def getrepr(

is what I want but it is part of the private library.

This is what the high level code looks like at the moment:

def test_threads():
    def run_async():
         try:
               do_things()
         except:
               # I want to do the pretty pytest exception formatting here
               LOG.exception("do things failed", exc_info=e)
    
    handle = run_in_thread(run_async)
    do_other_things()
    if handle.error():
           assert False

[RonnyPfannschmidt]

The Exception info class provides the formatting

[RonnyPfannschmidt]

But how about composing a exception group from futures instead of logging in threads