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    <h3>Editing: MailerTestCommand.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Mailer\Command;

use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Mailer\Transport\TransportInterface;
use Symfony\Component\Mime\Email;

/**
 * A console command to test Mailer transports.
 */
#[AsCommand(name: 'mailer:test', description: 'Test Mailer transports by sending an email')]
final class MailerTestCommand extends Command
{
    public function __construct(private TransportInterface $transport)
    {
        $this-&gt;transport = $transport;

        parent::__construct();
    }

    protected function configure()
    {
        $this
            -&gt;addArgument('to', InputArgument::REQUIRED, 'The recipient of the message')
            -&gt;addOption('from', null, InputOption::VALUE_OPTIONAL, 'The sender of the message', 'from@example.org')
            -&gt;addOption('subject', null, InputOption::VALUE_OPTIONAL, 'The subject of the message', 'Testing transport')
            -&gt;addOption('body', null, InputOption::VALUE_OPTIONAL, 'The body of the message', 'Testing body')
            -&gt;addOption('transport', null, InputOption::VALUE_OPTIONAL, 'The transport to be used')
            -&gt;setHelp(&lt;&lt;&lt;'EOF'
The &lt;info&gt;%command.name%&lt;/info&gt; command tests a Mailer transport by sending a simple email message:

&lt;info&gt;php %command.full_name% to@example.com&lt;/info&gt;

You can also specify a specific transport:

    &lt;info&gt;php %command.full_name% to@example.com --transport=transport_name&lt;/info&gt;

Note that this command bypasses the Messenger bus if configured.

EOF
            );
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $message = (new Email())
            -&gt;to($input-&gt;getArgument('to'))
            -&gt;from($input-&gt;getOption('from'))
            -&gt;subject($input-&gt;getOption('subject'))
            -&gt;text($input-&gt;getOption('body'))
        ;
        if ($transport = $input-&gt;getOption('transport')) {
            $message-&gt;getHeaders()-&gt;addTextHeader('X-Transport', $transport);
        }

        $this-&gt;transport-&gt;send($message);

        return 0;
    }
}
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