Test failure on Fedora with 6.1.0

[limburgher]

Sample:

__________________ test_can_identify_dateutil[America/Merida] __________________

tzid = 'America/Merida'

@with_tzid
def test_can_identify_dateutil(tzid):
    """Check that all those dateutil timezones can be identified."""
    from dateutil.tz import gettz

  assert tzid in tzids_from_tzinfo(gettz(tzid))

E AssertionError: assert 'America/Merida' in ('America/Mexico_City', 'Mexico/General')
E + where ('America/Mexico_City', 'Mexico/General') = tzids_from_tzinfo(tzfile('/usr/share/zoneinfo/America/Merida'))
E + where tzfile('/usr/share/zoneinfo/America/Merida') = <dateutil.tz.tz.__get_gettz..GettzFunc object at 0x7f543477e270>('America/Merida')

src/icalendar/tests/test_timezone_identification.py:29: AssertionError

[niccokunzmann]

Thank you! Could you tell me which system it is so it can be reproduced as well as pip list?

[limburgher]

Fedora 42, rawhide mock.

[niccokunzmann]

Thank you! I think that the tests probably need adjusting:

• new timezones should not be tested
• timezones that are in the list but are not supported should also not be tested

That would create consistency across platforms, I hope.

[limburgher]

Still present in 6.1.1

[niccokunzmann]

This is now also failing in our CI.
https://github.com/collective/icalendar/actions/runs/13164502893/job/36741212615?pr=774#step:5:309