Add frontend subdirectory to project

frontend/test/chat_test.dart

@@ -0,0 +1,69 @@
+import 'package:auto_gpt_flutter_client/models/chat.dart';
+import 'package:auto_gpt_flutter_client/models/message_type.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('Chat', () {
+    // Test the properties of the Chat class
+    test('Chat properties', () {
+      final chat = Chat(
+          id: 1,
+          taskId: 1,
+          message: 'Test Message',
+          timestamp: DateTime.now(),
+          messageType: MessageType.user);
+
+      expect(chat.id, 1);
+      expect(chat.taskId, 1);
+      expect(chat.message, 'Test Message');
+      expect(chat.messageType, MessageType.user);
+    });
+
+    // Test Chat.fromMap method
+    test('Chat.fromMap', () {
+      final chat = Chat.fromMap({
+        'id': 1,
+        'taskId': 1,
+        'message': 'Test Message',
+        'timestamp': DateTime.now().toString(),
+        'messageType': 'user'
+      });
+
+      expect(chat.id, 1);
+      expect(chat.taskId, 1);
+      expect(chat.message, 'Test Message');
+      expect(chat.messageType, MessageType.user);
+    });
+
+    // Test that two Chat objects with the same properties are equal
+    test('Two chats with same properties are equal', () {
+      final chat1 = Chat(
+          id: 3,
+          taskId: 3,
+          message: 'Same Message',
+          timestamp: DateTime.now(),
+          messageType: MessageType.agent);
+      final chat2 = Chat(
+          id: 3,
+          taskId: 3,
+          message: 'Same Message',
+          timestamp: chat1.timestamp,
+          messageType: MessageType.agent);
+
+      expect(chat1, chat2);
+    });
+
+    // Test that toString() returns a string representation of the Chat
+    test('toString returns string representation', () {
+      final chat = Chat(
+          id: 4,
+          taskId: 4,
+          message: 'Test toString',
+          timestamp: DateTime.now(),
+          messageType: MessageType.user);
+
+      expect(chat.toString(),
+          'Chat(id: 4, taskId: 4, message: Test toString, timestamp: ${chat.timestamp}, messageType: MessageType.user)');
+    });
+  });
+}