import * as MailDev from 'maildev' function mockSmtpServer (emailsCollection: object[]) { const maildev = new MailDev({ ip: '127.0.0.1', smtp: 1025, disableWeb: true, silent: true }) maildev.on('new', email => emailsCollection.push(email)) return new Promise((res, rej) => { maildev.listen(err => { if (err) return rej(err) return res() }) }) } // --------------------------------------------------------------------------- export { mockSmtpServer }