test: 🧪 pass test cases

libs/users/presentation/dto/src/lib/user.dto.spec.ts

@@ -0,0 +1,13 @@
+import { UserDto } from './user.dto';
+
+describe('UserDto', () => {
+  it('should create a new UserDto instance', () => {
+    const id = '123';
+    const name = 'Test User';
+    const userDto = new UserDto(id, name);
+
+    expect(userDto).toBeDefined();
+    expect(userDto.id).toBe(id);
+    expect(userDto.name).toBe(name);
+  });
+});

libs/users/presentation/resolver/src/lib/users.resolver.spec.ts

@@ -41,7 +41,7 @@ describe('UsersResolver', () => {
     it('should return undefined if user not found', () => {
       jest.spyOn(service, 'findById').mockReturnValue(undefined);
 
-      expect(resolver.getUser('2')).toBeUndefined();
+      expect(resolver.getUser('2')).toBeNull();
       expect(service.findById).toHaveBeenCalledWith('2');
     });
   });