magento-test/app/code/Magento/Newsletter/view/frontend/requirejs-config.js

/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

var config = {
    map: {
        '*': {
            subscriptionStatusResolver: 'Magento_Newsletter/js/subscription-status-resolver',
            newsletterSignUp:  'Magento_Newsletter/js/newsletter-sign-up'
        }
    }
};