CODEWITHSUNDEEP
angularjstestingpromiseprotractor
awaken
awaken

Reputation: 809

protractor do all API functions really return promises?

When I ran this test:

browser.get('http://www.valid-site.com').then(function(msg){
    console.log(msg);
});

I'm expecting 1 or true to be printed to indicate that the operation is successful since get() should return a promise with the value it has been resolved to. Instead it prints 'null'. In the API docs http://angular.github.io/protractor/#/api there is no indication of a return type. I'm confused which functions return a promise and which do not.

Upvotes: 1

Views: 216

Answers (1)

alecxe
alecxe

Reputation: 473873

Not sure if it would directly answer the question, but, if you look into the browser.get() protractor's implementation (it wraps the WebDriverJS's driver.get()), you can see that it returns:

return this.executeScript_(
  'angular.resumeBootstrap(arguments[0]);',
  msg('resume bootstrap'),
  moduleNames);

And since the executed script has no return, this is the reason you see null resolved.

But, if you look into, for example, browser.refresh() implementation, you'll see that it returns:

return self.executeScript_(
  'return window.location.href',
  'Protractor.refresh() - getUrl').then(function(href) {
    return self.get(href, timeout);
  });

In this case, the executed script returns window.location.href value, which you would see on the console in case:

browser.refresh().then(function (url) {
    console.log(url);
});

I guess, you can understand this "Read the source, Luke" answer, as, whenever you are not sure, look into sources.

Upvotes: 4

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