SATE-EasyReceipt/app/Mail/Test.php

<?php

namespace App\Mail;

class Test extends BaseMailer
{
    public function getTemplateName(): string
    {
        return 'mails.test';
    }

    public function getSubject(): string
    {
        return 'メールテスト';
    }

    public function getParams(): array
    {
        return [];
    }
}