What is the best way to call service function from Laravel Feature Test

I have a class

class UserService
{
    private UserRepositoryInterface $userRepository;
    private AuthRepositoryInterface $authRepository;

    public function __construct(UserRepositoryInterface $userRepository, AuthRepositoryInterface $authRepository)
    {
        $this->userRepository = $userRepository;
        $this->authRepository = $authRepository;
    }


    public function generateEmailVerificationToken($user): int|JsonResponse
    {
        $token = random_int(000000, 999999);
        $this->authRepository->storeVerifyEmailToken($token, $user);
        return $token;
    }

}

Now, I am testing,

public function test_user_email_verified_successfully()
{
    $user = User::factory()->create();


    //this line giving me issue
    $token = $this->userService->generateEmailVerificationToken($user);


    $rawData = [
      'user' => $user->email,
      'token' => $token
    ];
    $this->apiPost('/email/verify', $rawData)
        ->assertStatus(200)
        ->assertJsonStructure([
            'user' => [
                'id',
                'name',
                'email',
                'role_id',
                'role',
                'permissions',
                'created_at',
                'updated_at',
            ]
        ]);
}

What is the best way to call this generateEmailVerificationToken? I tried by

$service = new UserService();

But this UserService need UserRepositoryInterface and AuthRepositoryInterface