tests showing that the event is not moved

see #62

test/calendars/issue-62-moved-event.ics

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+BEGIN:VCALENDAR
+PRODID:-//Google Inc//Google Calendar 70.9054//EN
+VERSION:2.0
+CALSCALE:GREGORIAN
+METHOD:PUBLISH
+X-WR-CALNAME:Partyborn Zeitgeist
+X-WR-TIMEZONE:Europe/Berlin
+X-WR-CALDESC:Alle Events des Zeitgeist Paderborn für den Partyborn Partyala
+ rm\nhttps://partyborn.de/partyalarm
+BEGIN:VTIMEZONE
+TZID:Europe/Berlin
+X-LIC-LOCATION:Europe/Berlin
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+TZNAME:CEST
+DTSTART:19700329T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+TZNAME:CET
+DTSTART:19701025T030000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTART;TZID=Europe/Berlin:20211217T213000
+DTSTAMP:20211218T004508Z
+UID:38m812jicsrer5gorh3mlp7qhc@google.com
+RECURRENCE-ID;TZID=Europe/Berlin:20211231T213000
+CREATED:20211218T004036Z
+DESCRIPTION:Jeden letzten Freitag im Monat <a href="https://www.instagram.c
+ om/p/CWwxmqbKXsC/">https://www.instagram.com/p/CWwxmqbKXsC/</a>
+LAST-MODIFIED:20211218T004234Z
+LOCATION:
+SEQUENCE:3
+STATUS:CONFIRMED
+SUMMARY:Karaoke
+TRANSP:TRANSPARENT
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;TZID=Europe/Berlin:20211126T213000
+DTEND;TZID=Europe/Berlin:20211126T213000
+RRULE:FREQ=MONTHLY;BYDAY=-1FR
+DTSTAMP:20211218T004508Z
+UID:38m812jicsrer5gorh3mlp7qhc@google.com
+CREATED:20211218T004036Z
+DESCRIPTION:Jeden letzten Freitag im Monat <a href="https://www.instagram.c
+ om/p/CWwxmqbKXsC/">https://www.instagram.com/p/CWwxmqbKXsC/</a>
+LAST-MODIFIED:20211218T004214Z
+LOCATION:
+SEQUENCE:2
+STATUS:CONFIRMED
+SUMMARY:Karaoke
+TRANSP:TRANSPARENT
+END:VEVENT
+END:VCALENDAR

test/test_issue_62_moved_event.py

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+'''
+This tests the move of a december event.
+
+Issue: https://github.com/niccokunzmann/python-recurring-ical-events/issues/62
+'''
+
+def test_event_is_absent(calendars):
+    '''RRULE:FREQ=MONTHLY;BYDAY=-1FR'''
+    events = calendars.issue_62_moved_event.at("20211231")
+    assert events == []
+
+def test_event_has_moved(calendars):
+    '''DTSTART;TZID=Europe/Berlin:20211217T213000'''
+    events = calendars.issue_62_moved_event.at("20211217")
+    assert len(events) == 1
+
+
+
+