Laravel 护照抛出错误：“在 null 上调用成员函数 createToken()”

Posted 2023-03-15

【中文标题】Laravel 护照抛出错误：“在 null 上调用成员函数 createToken()”

【英文标题】：Laravel passport throwing error: 'Call to a member function createToken() on null'

【发布时间】：2019-12-04 06:53:56

【问题描述】：

所以我正在尝试使用 phpunit 创建身份验证存储库测试，但我不断收到错误“调用 null 时的成员函数 createToken()”。我认为这是由于 RefreshDatabase 特性，但我正在安装护照，所以我有点迷路了。任何帮助表示赞赏！

AuthRepository 测试

namespace Tests\Repository;

use App\Contracts\Auth;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class AuthRepositoryTest extends TestCase


    use RefreshDatabase;

   protected $authRepository;

    protected function setUp(): void
    
        parent::setUp();
        $this->artisan('passport:install');
        $this->authRepository = app()->make(Auth::class);
    

    /**
     * Test Successful Login
     *
     * @return void
     */
    public function testSuccessfulLogin(): void
    
        $request = new \Illuminate\Http\Request();
        $request->setMethod('POST');
        $request->replace(['name' => 'test', 'email' => 'test', 'password' => 'testing']);
        $this->authRepository->register($request);

        $request = new \Illuminate\Http\Request();
        $request->setMethod('POST');
        $request->replace(['email' => 'test', 'password' => 'testing']);
        $this->authRepository->login($request);
    

测试用例

<?php

namespace Tests;

use Illuminate\Foundation\Testing\TestCase as BaseTestCase;

abstract class TestCase extends BaseTestCase

    use CreatesApplication;

    protected function setUp(): void
    
        parent::setup();

    

AuthRepository

<?php

namespace App\Repositories;

use App\Contracts\Auth;
use Illuminate\Support\Facades\Auth as Authenticate;
use App\User;

class AuthRepository implements Auth


    public function Register($request)
    
        $user = new User([
            'name' => $request->input('name'),
            'email' => $request->input('email'),
            'password' => bcrypt($request->input('password'))
        ]);

        $user->save();

        return $user;
    

    public function Login($request)
    
        $credentials = $request->all();

        if (!Authenticate::attempt($credentials))
            return response()->json([
                'message' => 'Unauthorized'
            ], 401);

        $user = $request->user();
        $tokenResult = $user->createToken('Personal Access Token');
        $token = $tokenResult->token;
        $token->save();

        return $tokenResult;
    

【参考方案1】：

这是因为控制器试图获取用户数据并基于该数据创建令牌。

在您的情况下（也发生在我身上），有一个用户变量指向获取用户凭据的请求，而用户数据未知，因为用户尚未登录。

为了清楚起见，请查看您在这一行中的代码：

$user = $request->user();
$tokenResult = $user->createToken('Personal Access Token');
$token = $tokenResult->token;

要解决这个问题，请将$user = $request->user() 的行更改为：

$user = User::whereEmail($request->email)->first();
$tokenResult = $user->createToken('Personal Access Token');
$token = $tokenResult->token;