Slack integration only works on onPrepare, but not in onComplete, afterLaunch? - selenium

Question

I am hooking my protractor tests with Slack, the idea is to send a message on a slack room if the test started and once it's done.
However, I can only successfully send messages to slack during onPrepare. But not in afterLanch or even in onComplete.
I tried to do a simple console.log in the afterLaunch and onComplete so I know it works. The only thing that's confusing me is why it does not send the message in slack AFTER the test is done.
If there is a better way of doing this, please tell me your ideas. Right now, this is the best i've got.
Please see my code:
let SpecReporter = require('jasmine-spec-reporter').SpecReporter;
var webRep = require('jasmine-slack-reporter');
var Jasmine2HtmlReporter = require('protractor-jasmine2-html-reporter');
var SlackWebhook = require('slack-webhook');
var slack = new SlackWebhook('my-webhook-url');
exports.config = {
capabilities: {
'browserName' : 'chrome',
},
seleniumAddress: 'http://localhost:4446/wd/hub',
specs: ['./smoke-test/loginAccountType.js'],
onPrepare: function () {
browser.ignoreSynchronization = true,
slack.send({
text: "Test is starting",
channel: '#test-report'
}),
jasmine.getEnv().addReporter(new SpecReporter({
spec: {
displayStacktrace: true
}
})),
jasmine.getEnv().addReporter(
new Jasmine2HtmlReporter({
savePath: './reports',
takeScreenshotsOnlyOnFailures: true,
})
);
},
afterLaunch: function () {
slack.send({
text: "Test is Done",
channel: '#test-report'
})
},
jasmineNodeOpts: {
// Default time to wait in ms before a test fails.
defaultTimeoutInterval: 100000,
print: function() {},
},
};

Answer 1

It seems like your slack.send() is async?
Try to return promise from your afterLanch/onComplete - in this case protractor will wait for this promise to resolve before killing node.js process.
I never worked with slack-webhook package. But what i see in documentation - .send() is returning promise. Try to return it from your afterLaunch/onComplete:
afterLaunch: function () {
return slack.send({
text: "Test is Done",
channel: '#test-report'
})
},

Answer 2

In addition to #Xotabu4 his answer.
According to the docs the send is async, so do a return;
But also catch the error, just to check what fails, see below.
return slack.send('some text')
.then(function(res) {
// succesful request
})
.catch(function(err) {
// handle request error
})
Hope it helps