Larabook Auth::check(） 不起作用

嗨，伙计们，我在编码方面有问题，
它无法正常工作，我正在使用所有相同的代码
有关于LaRabook
的视频从头开始这是我在 signUpCept 中的代码.php

$I = new FunctionalTester($scenario);
$I->am('a guest');
$I->wantTo('Sign up for a Larabook account');
$I->amOnPage('/');
$I->click('Sign Up!');
$I->seeCurrentUrlEquals('/register');
$I->fillField('Username:', 'JohnDoe');
$I->fillField('Email:', 'john@example.com');
$I->fillField('Password:', 'demo');
$I->fillField('Password Confirmation:', 'demo');
$I->click('Sign Up');
$I->seeCurrentUrlEquals('');
$I->see('Welcome to Larabook!');
$I->seeRecord('users',[
    'username' => 'JohnDoe',
    'email' => 'john@example.com',
    'password' => 'demo'
]);
$I->assertTrue(Auth::check());

这是我的注册控制器.php

class RegistrationController extends 'BaseController {
    /**
     * Show a form to register the user.
     *
     * @return Response
     */
    public function create()
    {
        return View::make('registration.create');
    }

    /**
     * Creating a new Larbook user.
     *
     * @return Response
     */
    public function store() 
    {
        $user = User::create(
            Input::only('username', 'email', 'password')
        );
        Auth::login($user);
        return Redirect::home();
    }

}

这就是我遇到的错误

Functional Tests (1) ----------------------------------------------------------------------------------------
Sign up for a larabook account (SignUpCept)                                                            Fail
-------------------------------------------------------------------------------------------------------------

Time: 6.04 seconds, Memory: 25.50Mb
There was 1 failure:
---------
1) Failed to sign up for a larabook account in SignUpCept (tests/functional/SignUpCept.php)
 Step  I assert true false
 Fail  Failed asserting that false is true.
Scenario Steps:
 13. $I->assertTrue(false) at tests/functional/SignUpCept.php:28
 12. $I->seeRecord("users",{"username":"JohnDoe","email":"john@example.com","password":"demo"}) at tests/functional/SignUpCept.php:26
 11. $I->see("Welcome to Larabook!") at tests/functional/SignUpCept.php:20
 10. $I->seeCurrentUrlEquals("") at tests/functional/SignUpCept.php:19
 9. $I->click("Sign Up") at tests/functional/SignUpCept.php:17
 8. $I->fillField("Password Confirmation:","demo") at tests/functional/SignUpCept.php:15

FAILURES!
Tests: 1, Assertions: 4, Failures: 1.