widget refresh enhancements

2026-08-06 20:22:32 +02:00
parent 646e2c0451
commit ab23422a86
22 changed files with 1027 additions and 99 deletions
@@ -0,0 +1,67 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:marianum_mobile/background/widget_background_task.dart';
+
+void main() {
+  final now = DateTime(2026, 8, 6, 12, 0);
+
+  group('shouldSkipRefresh', () {
+    test('skips when the snapshot is younger than the debounce window', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(const Duration(minutes: 5)),
+          now: now,
+          force: false,
+        ),
+        isTrue,
+      );
+    });
+
+    test('refreshes when the snapshot is older than the debounce window', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(const Duration(minutes: 15)),
+          now: now,
+          force: false,
+        ),
+        isFalse,
+      );
+    });
+
+    test('refreshes exactly at the debounce boundary', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(WidgetBackgroundTask.refreshDebounce),
+          now: now,
+          force: false,
+        ),
+        isFalse,
+      );
+    });
+
+    test('force bypasses a fresh snapshot', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.subtract(const Duration(minutes: 1)),
+          now: now,
+          force: true,
+        ),
+        isFalse,
+      );
+    });
+
+    test('refreshes when no snapshot exists yet', () {
+      expect(shouldSkipRefresh(fetchedAt: null, now: now, force: false), isFalse);
+    });
+
+    test('refreshes when fetchedAt lies in the future (clock change)', () {
+      expect(
+        shouldSkipRefresh(
+          fetchedAt: now.add(const Duration(minutes: 5)),
+          now: now,
+          force: false,
+        ),
+        isFalse,
+      );
+    });
+  });
+}