Tests call sleeping_retry() with SHORT_TIMEOUT (#93870)

Tests now call busy_retry() and sleeping_retry() with SHORT_TIMEOUT
or LONG_TIMEOUT (of test.support), rather than hardcoded constants.

Add also WAIT_ACTIVE_CHILDREN_TIMEOUT constant to
_test_multiprocessing.

Victor Stinner committed 3y ago

50e0866f8792941d2aea8937c63d1cb37bbc35cf

Parent: 46e455f

Committed by GitHub <noreply@github.com> on 6/15/2022, 4:49:14 PM