Laravel InvalidArgumentException:Action Facade\Ignition\Http\Controllers\ExecuteSolutionController未定义

我想做黄昏测试

ViewAnotherUsersTweetsTest.php

/**     
     * @test
     */
    public function can_view_another_users_tweets()
    {
        $user = factory(User::class)->create(['username' => 'johndoe']);

        // make() stores in memory
        $tweet = factory(Tweet::class)->make([           
            'body' => 'My first tweet'
        ]);


        $user->tweets()->save($tweet);

        $this->browse(function ($browser) {
            $browser->visit('/johndoe')
            ->dump();
        });        
    }

class UserController extends Controller
{
    public function show(string $username) {        
        $user = User::findByUsername($username); // ExecuteSolutionController not defined.
        dd($user);
   }
}

web.php中的路由：

Route:：get（{username}，'UserController@show');

UserController.php

/**     
     * @test
     */
    public function can_view_another_users_tweets()
    {
        $user = factory(User::class)->create(['username' => 'johndoe']);

        // make() stores in memory
        $tweet = factory(Tweet::class)->make([           
            'body' => 'My first tweet'
        ]);


        $user->tweets()->save($tweet);

        $this->browse(function ($browser) {
            $browser->visit('/johndoe')
            ->dump();
        });        
    }

class UserController extends Controller
{
    public function show(string $username) {        
        $user = User::findByUsername($username); // ExecuteSolutionController not defined.
        dd($user);
   }
}

在
App\User.php
模型文件中

public static function findByUsername($username) {
 return self::where('username', $username)->first(); 
}

当我使用命令
php artisan dash--filter can\u view\u other\u users\u tweets
执行测试时，它失败并显示以下错误消息

（1/1）未定义InvalidArgumentException操作Facade\Ignition\Http\Controllers\ExecuteSolutionController。

原因可能是什么？如何修复它？
我们可以看到findByUsername函数吗？显然，您的代码在某些地方找不到ExecuteSolutionController。@mrhn用函数更新了问题