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Sunday, February 20, 2022

[FIXED] phpunit, laravel: Cannot use "parent" when current class scope has no parent

 February 20, 2022     laravel-5, mockery, php, php-7.4, phpunit     No comments   

Issue

I'm using PHPUnit 6.5.13 and Laravel 5.5 on PHP 7.4. I recently upgraded from PHP 7.2 to 7.4. and it seems like that triggered the error.

In my test I use $this->expectsEvents in order to test that an event is fired. The test class looks a little like this:

namespace Tests\Feature;
use Tests\TestCase;
use App\Events\OrderReSent;

class MyEventTest extends TestCase {
    /** @test */
    public function authenticated_client_can_resend()
    {
        $this->expectsEvents(OrderReSent::class); // there is some more code but this is the line that returns the error
    }
}

OrderReSent looks like this (I've tried commenting out broadcastOn and remove InteractsWithSockets use, no change in result):

namespace App\Events;

use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;

class OrderReSent
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    public $invoiceId;

    public function __construct($invoiceId)
    {
        $this->invoiceId = $invoiceId;
    }

    public function broadcastOn()
    {
        return new PrivateChannel('channel-name');
    }
}

The only place I see parent::__construct being called is in Illuminate\Broadcasting\PrivateChannel, which extends Illuminate\Broadcasting\Channel (and it is a child class, so I don't understand why it would throw this error):

namespace Illuminate\Broadcasting;

class PrivateChannel extends Channel
{
    /**
     * Create a new channel instance.
     *
     * @param  string  $name
     * @return void
     */
    public function __construct($name)
    {
        parent::__construct('private-'.$name);
    }
}

The stacktrace looks like this and makes me believe Mockery is the culprit:

1) Tests\Feature\MyEventTest::authenticated_client_can_resend
ErrorException: Cannot use "parent" when current class scope has no parent

/project-root/vendor/mockery/mockery/library/Mockery/Loader/EvalLoader.php:16
/project-root/vendor/mockery/mockery/library/Mockery/Loader/EvalLoader.php:16
/project-root/vendor/mockery/mockery/library/Mockery/Container.php:219
/project-root/vendor/mockery/mockery/library/Mockery.php:89
/project-root/vendor/laravel/framework/src/Illuminate/Foundation/Testing/Concerns/MocksApplicationServices.php:99
/project-root/vendor/laravel/framework/src/Illuminate/Foundation/Testing/Concerns/MocksApplicationServices.php:54
/project-root/tests/Feature/MyEventTest.php:29

Solution

I had same issue - it turned out that mockery/mockery was set to version 0.9 in my composer.json. Upgrading mockery/mockery to version 1.3 solved the problem for me.

Related composer.json fragment:

        "mockery/mockery": "~1.3.0",
        "phpunit/phpunit": "~8.0",

Try setting same versions and run composer update



Answered By - Robert TrzebiƄski
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