bpo-30339, bpo-33913:
* Increase timeout from 10 seconds to 1 minute in
test_source_main_skipped_in_children source of
test_multiprocessing_main_handling.
* Replace time.time() with time.monotonic().
* On timeout, include the duration in the error message.
(cherry picked from commit 64737e9ae2)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
This should appease the OpenIndiana buildbot.
Also lengthened the worst case timeout to try to eliminate
the inconsistent failure on one of the Windows 7 buildbots.
Thanks to Christian Heimes for noting the buildbot failures and
to Zachary Ware for providing the patch to make the new tests
play nice with both other platforms and unittest test discovery