Event testing

composer.json

{
    "name": "root/app",
    "require": {
        "php": "^7.4",
        "yiisoft/yii-event": "3.0.x-dev",
        "yiisoft/di": "3.0.x-dev",
        "yiisoft/composer-config-plugin": "1.0.x-dev"
    },
    "minimum-stability": "dev",
    "extra": {
        "config-plugin": {
            "console": [
                "$common",
                "$console"
            ],
            "events-console": "events-console.php"
        }
    }
}

events-console.php

<?php

declare(strict_types=1);

return [Message::class => [[EventHandler::class, 'handle']]];

test.php

<?php

declare(strict_types=1);

use Psr\EventDispatcher\EventDispatcherInterface;
use Yiisoft\Composer\Config\Builder;
use Yiisoft\Di\Container;
use Yiisoft\EventDispatcher\Dispatcher\Dispatcher;
use Yiisoft\EventDispatcher\Provider\Provider;
use Yiisoft\Injector\Injector;
use Yiisoft\Yii\Event\ListenerCollectionFactory;

require __DIR__ . '/vendor/autoload.php';

final class Message {
    private ?string $text;

    public function __construct(?string $text)
    {
        $this->text = $text;
    }

    public function getText(): ?string
    {
        return $this->text;
    }
}

final class EventHandler {
    public function handle(Message $message)
    {
        var_dump($message->getText());
    }
}

$container = new Container(require Builder::path('console'));
$message = new Message('test message');
$container->get(EventDispatcherInterface::class)->dispatch($message);