Protractor 如何通过量角器代码单击电子邮件中的链接

我使用的是量角器，我需要测试忘记密码的情况。因此，当我单击忘记密码时，它将要求输入emailid，并在该电子邮件中获得一个链接。我需要单击该链接。为此，我已尝试使用mail-listener4，并将其添加到配置文件中，如下所示

onPrepare: function() {
browser.ignoreSynchronization = true;
browser.manage().window().maximize();
var MailListener = require("mail-listener4");
// here goes your email connection configuration
var mailListener = new MailListener({
    username: "rosemol.davis@cloudium.io",
    password: "Csoft123!",
    host: "cmail.cloudium.io",
    port: 993, // imap port 
    tls: true,
    tlsOptions: { rejectUnauthorized: false },
    mailbox: "INBOX", // mailbox to monitor 
    searchFilter: ["UNSEEN", "FLAGGED"], // the search filter being used after an IDLE notification has been retrieved 
    markSeen: true, // all fetched email willbe marked as seen and not fetched next time 
    fetchUnreadOnStart: true, // use it only if you want to get all unread email on lib start. Default is `false`, 
    mailParserOptions: {streamAttachments: true}, // options to be passed to mailParser lib. 
    attachments: true, // download attachments as they are encountered to the project directory 
    attachmentOptions: { directory: "attachments/" } // specify a download directory for attachments 
});

 mailListener.start();

mailListener.on("server:connected", function(){
    console.log("Mail listener initialized");
});
global.mailListener= mailListener;
}

在basedefention.js文件中添加，如下所示

When(/^I get email content$/, function () {

function getLastEmail() {
  var deferred = protractor.promise.defer();
  console.log("Waiting for an email...");

  mailListener.on("mail", function(mail){
    console.log("emailParsed", mail);
    console.log("mailon");
      deferred.fulfill(mail);
  });
  
  return deferred.promise;
};


browser.wait(getLastEmail()).then(function (email) {
  console.log("email","%%%%%%%%%%%%%%%%%");
  console.log(email);
  console.log(email.text,"###########################@@@@@@");

 });

}); 

---

但是当我执行这段代码时，我只能在命令提示符中看到文本“邮件侦听器已初始化”和“等待电子邮件…”。我认为mailstener.on（“mail”，函数（mail）{}部件未执行，本节中给出的console.log不起作用。我尝试了mail-listener4和mail-listener2，两者都给出了相同的结果。我哪里出了问题？如何解决此问题，或者如何访问电子邮件中的链接？提前感谢。

我正在使用mailsac.com解决此问题