add core/api tests

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

packages/stream_chat/test/src/fakes.dart

@@ -1,6 +1,18 @@
+import 'package:dio/dio.dart';
 import 'package:mocktail/mocktail.dart';
+import 'package:stream_chat/src/core/api/channel_api.dart';
+import 'package:stream_chat/src/core/api/device_api.dart';
+import 'package:stream_chat/src/core/api/general_api.dart';
+import 'package:stream_chat/src/core/api/message_api.dart';
+import 'package:stream_chat/src/core/api/moderation_api.dart';
+import 'package:stream_chat/src/core/api/stream_chat_api.dart';
+import 'package:stream_chat/src/core/api/user_api.dart';
+import 'package:stream_chat/src/core/api/guest_api.dart';
 import 'package:stream_chat/src/core/http/token.dart';
 import 'package:stream_chat/src/core/http/token_manager.dart';
+import 'package:stream_chat/stream_chat.dart';
+
+import 'mocks.dart';
 
 class FakeTokenManager extends Fake implements TokenManager {
   final token = Token.development('test-user-id');
@@ -25,3 +37,48 @@ class FakeTokenManager extends Fake implements TokenManager {
   @override
   void reset() {}
 }
+
+class FakeMultiPartFile extends Fake implements MultipartFile {}
+
+class FakeChatApi extends Fake implements StreamChatApi {
+  UserApi? _user;
+
+  @override
+  UserApi get user => _user ??= MockUserApi();
+
+  GuestApi? _guest;
+
+  @override
+  GuestApi get guest => _guest ??= MockGuestApi();
+
+  MessageApi? _message;
+
+  @override
+  MessageApi get message => _message ??= MockMessageApi();
+
+  ChannelApi? _channel;
+
+  @override
+  ChannelApi get channel => _channel ??= MockChannelApi();
+
+  DeviceApi? _device;
+
+  @override
+  DeviceApi get device => _device ??= MockDeviceApi();
+
+  ModerationApi? _moderation;
+
+  @override
+  ModerationApi get moderation => _moderation ??= MockModerationApi();
+
+  GeneralApi? _general;
+
+  @override
+  GeneralApi get general => _general ??= MockGeneralApi();
+
+  AttachmentFileUploader? _fileUploader;
+
+  @override
+  AttachmentFileUploader get fileUploader =>
+      _fileUploader ??= MockAttachmentFileUploader();
+}