类 App\Mail\EmailGenerator 的对象无法转换为字符串

如何解决类 App\Mail\EmailGenerator 的对象无法转换为字符串

我有一个名为 EmailGenerator 的邮件文件，我有一个名为 NotificationTest 的测试。

每次运行测试时，总是出现此错误。

 Object of class App\Mail\EmailGenerator could not be converted to string

这是我的NotificationTest.php

<?php

namespace Tests\Unit;

use Tests\TestCase;
use App\Http\Livewire\Notifications\CreateNotification;
use App\Http\Livewire\Notifications\ManageNotifications;
use App\Models\EmailTemplate;
use Livewire\Livewire;
use Mockery;
use Mockery\MockInterface;
use Mail;
use App\Mail\EmailGenerator;
use App\Models\User;

class NotificationTest extends TestCase
{
    public function test_sample_email()
    {
        Mail::fake();

        Mail::assertNothingSent();
        
        $template = EmailTemplate::factory()->create([
            'name' => 'foo',]);

        Mail::assertSent(new EmailGenerator($template));
    }
}

我刚刚从这个文档中复制了示例代码 https://laravel.com/docs/8.x/mocking#mail-fake

这是我在 EmailGenerator.php 中的代码

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use App\Models\EmailTemplate;

class EmailGenerator extends Mailable
{
    use Queueable,SerializesModels;

    public $template;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct(EmailTemplate $template)
    {
        $this->template = $template;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->subject($this->template->subject)
                    ->markdown('emails.generator');
    }
}

解决方法

看起来 Mail::assertSent 期望的是类名而不是类的实例。

也许会改为：

Mail::assertSent(EmailGenerator::class,1);