Build Forgejo-backed community prototype

tests/test_calendar_feeds.py

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+from __future__ import annotations
+
+import unittest
+from datetime import datetime, timedelta
+from zoneinfo import ZoneInfo
+
+from calendar_feeds import _parse_ics
+
+
+class CalendarFeedTestCase(unittest.TestCase):
+    def test_weekly_recurrence_returns_future_occurrences(self) -> None:
+        timezone = ZoneInfo("America/New_York")
+        starts_at = datetime.now(timezone).replace(
+            hour=13,
+            minute=0,
+            second=0,
+            microsecond=0,
+        ) - timedelta(days=7)
+        ends_at = starts_at.replace(hour=16)
+        raw_calendar = f"""BEGIN:VCALENDAR
+X-WR-CALNAME:Robot-U
+BEGIN:VEVENT
+SUMMARY:Robotics Club
+DTSTART;TZID=America/New_York:{starts_at.strftime("%Y%m%dT%H%M%S")}
+DTEND;TZID=America/New_York:{ends_at.strftime("%Y%m%dT%H%M%S")}
+RRULE:FREQ=WEEKLY
+LOCATION:44 Portland Street
+END:VEVENT
+END:VCALENDAR
+"""
+
+        _calendar_name, events = _parse_ics(raw_calendar, "https://example.com/calendar.ics")
+
+        self.assertGreaterEqual(len(events), 1)
+        self.assertEqual(events[0].title, "Robotics Club")
+        self.assertGreaterEqual(events[0].starts_at, datetime.now(ZoneInfo("UTC")))
+        self.assertEqual(events[0].starts_at.tzinfo, timezone)
+        self.assertEqual(events[0].mode, "44 Portland Street")
+
+
+if __name__ == "__main__":
+    unittest.main()