test(persistence): add test for event mapper

Signed-off-by: Sahil Kumar <[email protected]>

packages/stream_chat_persistence/test/src/mapper/event_mapper_test.dart

@@ -0,0 +1,23 @@
+import 'package:test/test.dart';
+import 'package:stream_chat/stream_chat.dart';
+import 'package:stream_chat_persistence/src/db/moor_chat_database.dart';
+import 'package:stream_chat_persistence/src/mapper/event_mapper.dart';
+
+void main() {
+  test('toEvent should map entity into Event', () {
+    final ownUser = OwnUser(id: 'testUserId');
+    final entity = ConnectionEventEntity(
+      id: 3,
+      ownUser: ownUser.toJson(),
+      totalUnreadCount: 33,
+      unreadChannels: 33,
+      lastSyncAt: DateTime.now(),
+      lastEventAt: DateTime.now(),
+    );
+    final event = entity.toEvent();
+    expect(event, isA<Event>());
+    expect(event.me.id, ownUser.id);
+    expect(event.totalUnreadCount, entity.totalUnreadCount);
+    expect(event.unreadChannels, entity.unreadChannels);
+  });
+}