fix(stream_chat_persistence): tests

packages/stream_chat_persistence/test/mock_chat_database.dart

@@ -0,0 +1,71 @@
+import 'package:mocktail/mocktail.dart';
+import 'package:stream_chat_persistence/src/dao/dao.dart';
+import 'package:stream_chat_persistence/src/db/moor_chat_database.dart';
+
+class MockChatDatabase extends Mock implements MoorChatDatabase {
+  UserDao _userDao;
+
+  @override
+  UserDao get userDao => _userDao ??= MockUserDao();
+
+  ChannelDao _channelDao;
+
+  @override
+  ChannelDao get channelDao => _channelDao ??= MockChannelDao();
+
+  MessageDao _messageDao;
+
+  @override
+  MessageDao get messageDao => _messageDao ??= MockMessageDao();
+
+  PinnedMessageDao _pinnedMessageDao;
+
+  @override
+  PinnedMessageDao get pinnedMessageDao =>
+      _pinnedMessageDao ??= MockPinnedMessageDao();
+
+  MemberDao _memberDao;
+
+  @override
+  MemberDao get memberDao => _memberDao ??= MockMemberDao();
+
+  ReactionDao _reactionDao;
+
+  @override
+  ReactionDao get reactionDao => _reactionDao ??= MockReactionDao();
+
+  ReadDao _readDao;
+
+  @override
+  ReadDao get readDao => _readDao ??= MockReadDao();
+
+  ChannelQueryDao _channelQueryDao;
+
+  @override
+  ChannelQueryDao get channelQueryDao =>
+      _channelQueryDao ??= MockChannelQueryDao();
+
+  ConnectionEventDao _connectionEventDao;
+
+  @override
+  ConnectionEventDao get connectionEventDao =>
+      _connectionEventDao ??= MockConnectionEventDao();
+}
+
+class MockUserDao extends Mock implements UserDao {}
+
+class MockChannelDao extends Mock implements ChannelDao {}
+
+class MockMessageDao extends Mock implements MessageDao {}
+
+class MockPinnedMessageDao extends Mock implements PinnedMessageDao {}
+
+class MockMemberDao extends Mock implements MemberDao {}
+
+class MockReactionDao extends Mock implements ReactionDao {}
+
+class MockReadDao extends Mock implements ReadDao {}
+
+class MockChannelQueryDao extends Mock implements ChannelQueryDao {}
+
+class MockConnectionEventDao extends Mock implements ConnectionEventDao {}