def test_issue_268_tzinfo_x_parm():
inp = """
BEGIN:VCALENDAR
PRODID;X-RICAL-TZSOURCE=TZINFO:-//com.denhaven2/NONSGML ri_cal gem//EN
CALSCALE:GREGORIAN
VERSION:2.0
X-WR-CALNAME::Some Physical Therapy Centres Appointments
BEGIN:VTIMEZONE
TZID;X-RICAL-TZSOURCE=TZINFO:America/Toronto
BEGIN:DAYLIGHT
DTSTART:20210314T020000
RDATE:20210314T020000
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
DTEND;TZID=America/Toronto;VALUE=DATE-TIME:20210719T100000
STATUS:CONFIRMED
DTSTART;TZID=America/Toronto;VALUE=DATE-TIME:20210719T090000
DTSTAMP;VALUE=DATE-TIME:20210818T113251Z
UID:[email protected]
DESCRIPTION:
SUMMARY:A. Person (MVA Physio Subsequent)
ORGANIZER;CN="Some Physical Therapy Centres":mailto:infosouth@someptc
.ca
LOCATION:Some Physical Therapy Centres - 1234 St Unnamed Blvd\, 123\, O
ttawa
SEQUENCE:6044449
END:VEVENT
END:VCALENDAR
""".strip()
cal = Calendar(inp)
cmp(cal, calendar)
ser = cal.serialize()
deser = Calendar(ser)
cmp(cal, deser)
