Source Code added

mobile/test/modules/activity/activity_statistics_provider_test.dart

@@ -0,0 +1,71 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/models/activities/activity.model.dart';
+import 'package:immich_mobile/providers/activity_service.provider.dart';
+import 'package:immich_mobile/providers/activity_statistics.provider.dart';
+import 'package:mocktail/mocktail.dart';
+
+import '../../test_utils.dart';
+import 'activity_mocks.dart';
+
+void main() {
+  late ActivityServiceMock activityMock;
+  late ProviderContainer container;
+  late ListenerMock<int> listener;
+
+  setUp(() async {
+    activityMock = ActivityServiceMock();
+    container = TestUtils.createContainer(overrides: [activityServiceProvider.overrideWith((ref) => activityMock)]);
+    listener = ListenerMock();
+  });
+
+  test('Returns the proper count family', () async {
+    when(
+      () => activityMock.getStatistics('test-album', assetId: 'test-asset'),
+    ).thenAnswer((_) async => const ActivityStats(comments: 5));
+
+    // Read here to make the getStatistics call
+    container.read(activityStatisticsProvider('test-album', 'test-asset'));
+
+    container.listen(activityStatisticsProvider('test-album', 'test-asset'), listener.call, fireImmediately: true);
+
+    // Sleep for the getStatistics future to resolve
+    await Future.delayed(const Duration(milliseconds: 1));
+
+    verifyInOrder([() => listener.call(null, 0), () => listener.call(0, 5)]);
+
+    verifyNoMoreInteractions(listener);
+  });
+
+  test('Adds activity', () async {
+    when(() => activityMock.getStatistics('test-album')).thenAnswer((_) async => const ActivityStats(comments: 10));
+
+    final provider = activityStatisticsProvider('test-album');
+    container.listen(provider, listener.call, fireImmediately: true);
+
+    // Sleep for the getStatistics future to resolve
+    await Future.delayed(const Duration(milliseconds: 1));
+
+    container.read(provider.notifier).addActivity();
+    container.read(provider.notifier).addActivity();
+
+    expect(container.read(provider), 12);
+  });
+
+  test('Removes activity', () async {
+    when(
+      () => activityMock.getStatistics('new-album', assetId: 'test-asset'),
+    ).thenAnswer((_) async => const ActivityStats(comments: 10));
+
+    final provider = activityStatisticsProvider('new-album', 'test-asset');
+    container.listen(provider, listener.call, fireImmediately: true);
+
+    // Sleep for the getStatistics future to resolve
+    await Future.delayed(const Duration(milliseconds: 1));
+
+    container.read(provider.notifier).removeActivity();
+    container.read(provider.notifier).removeActivity();
+
+    expect(container.read(provider), 8);
+  });
+}