improved performance and battery usage on older devices

2026-09-25 23:58:08 +02:00
parent ed8e52f475
commit 56a497985b
70 changed files with 1631 additions and 621 deletions
@@ -0,0 +1,48 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:marianum_mobile/utils/recurrence_occurrences.dart';
+
+void main() {
+  setUp(RecurrenceOccurrences.clear);
+
+  final anchor = DateTime.utc(2024, 9, 2, 8);
+
+  test('returns only occurrences inside the half-open range', () {
+    final hits = RecurrenceOccurrences.between(
+      'RRULE:FREQ=DAILY',
+      anchor,
+      DateTime.utc(2026, 9, 21),
+      DateTime.utc(2026, 9, 24),
+    );
+    expect(hits, [
+      DateTime.utc(2026, 9, 21, 8),
+      DateTime.utc(2026, 9, 22, 8),
+      DateTime.utc(2026, 9, 23, 8),
+    ]);
+  });
+
+  test('answers earlier ranges after a later one was expanded', () {
+    RecurrenceOccurrences.between(
+      'RRULE:FREQ=WEEKLY',
+      anchor,
+      DateTime.utc(2026, 1, 1),
+      DateTime.utc(2026, 1, 31),
+    );
+    final hits = RecurrenceOccurrences.between(
+      'RRULE:FREQ=WEEKLY',
+      anchor,
+      DateTime.utc(2024, 9, 1),
+      DateTime.utc(2024, 9, 10),
+    );
+    expect(hits, [DateTime.utc(2024, 9, 2, 8), DateTime.utc(2024, 9, 9, 8)]);
+  });
+
+  test('stops at the end of a finite series', () {
+    final hits = RecurrenceOccurrences.between(
+      'RRULE:FREQ=DAILY;COUNT=2',
+      anchor,
+      DateTime.utc(2024, 1, 1),
+      DateTime.utc(2030, 1, 1),
+    );
+    expect(hits, hasLength(2));
+  });
+}