How we do Exception handling in protractor-cucumber and do a email notification

Question

I am using Protractor-Cucumber framework with protractor 5.2.2 and cucumber 3.2. I have a requirement of posting in no.of locations. So I have written a script in a loop for it. But it randomly fails before completing the loop. So when the script ends abnormally, is there like an exception handling section that gets control before exiting.The script can be fail due to any of the reasons like web driver issue,NoSuchElementError,ElementIsNotIntractable,ElementIsNotVisible etc.So whatever be the issue I have to handle that, and if it fails, I have to do an email notification. I have tried try catch, as given below, but it does not work for me.

When(/^I login$/, function () {
  try{
    element(by.css(".signin")).click();
    var count=post_details.length ; 
    for (var i=0; i<count; i++){ 
      post();
     }
   }
  catch(e){
    console.log("failed");
  }
});

How we can do this in protractor-cucumber.Thanks in advance

Answer 1

For the exception problem you can try this. ignoreUncaughtException

For the email part create a hooks.js file. Here you can setup the After() function, to check your scenario fails or not. Cucumber Docs.

Example:

After(function (scenario) {
  if (scenario.result.status === Status.FAILED)
  {     
    failed = true;              
    const attach = this.attach;

    //creates a screenshot for the report
    return browser.takeScreenshot().then(function(png) {
        return attach(new Buffer(png, "base64"), "image/png");
    });
  }
});

Then you can use nodemailer to send messages. Nodemailer

In your AfterAll() function you can handle the send part.

Example:

AfterAll(function(callback){
  console.log("AfterAll");
  if (failed)
  {     
    var transporter = nodemailer.createTransport(
    {
        host: 'host.com',
        port: xx,
        secure: false,
        //proxy: 'http://10.10.10.6:1098',
        auth: {
            user: userMail,
            pass: pw
        }
    });

    var mailOptions = {
        from: 'xx', // sender address (who sends)
        to: xxxxxx@mail.com',
        subject: 'your subject', // Subject line
        text: 'Your test failed....', // plaintext body
        /*attachments: [
        {
            filename: 'report.html',
            path: htmlReport,

        }]*/
    };

    transporter.sendMail(mailOptions, function(error, info)
    {
        if(error)
        {
            return console.log(error);
        } 
        console.log('Email sent: ' + info.response);
        console.log(info);
    });

} else {
    //do your stuff
}
setTimeout(callback, 2000);
});