NotificationEmail example

if ('' === $recipient->getEmail()) {
            throw new InvalidArgumentException(sprintf('"%s" needs an email, it cannot be empty.', __CLASS__));
        }

        if (!class_exists(NotificationEmail::class)) {
            $email = (new Email())
                ->to($recipient->getEmail())
                ->subject($notification->getSubject())
                ->text($notification->getContent() ?: $notification->getSubject())
            ;
        } else {
            $email = (new NotificationEmail())
                ->to($recipient->getEmail())
                ->subject($notification->getSubject())
                ->content($notification->getContent() ?: $notification->getSubject())
                ->importance($notification->getImportance())
            ;

            if ($exception = $notification->getException()) {
                $email->exception($exception);
            }
        }

        

namespace Symfony\Bridge\Twig\Tests\Mime;

use PHPUnit\Framework\TestCase;
use Symfony\Bridge\Twig\Mime\NotificationEmail;

class NotificationEmailTest extends TestCase
{
    public function test()
    {
        $email = (new NotificationEmail())
            ->markdown('Foo')
            ->exception(new \Exception())
            ->importance(NotificationEmail::IMPORTANCE_HIGH)
            ->action('Bar', 'http://example.com/')
            ->context(['a' => 'b'])
        ;

        $this->assertEquals([
            'importance' => NotificationEmail::IMPORTANCE_HIGH,
            'content' => 'Foo',
            'exception' => true,