Start testing your app with Casper.js

http://blog.codeship.io/2013/03/07/Smoke-Testing-with-Casperjs.html

by moritzplassnig • 13 years ago

52 20 13 years ago

blog.codeship.io

dandrewsen• 13 years ago

Casper.js is definitely a great tool, with helpful documentation

MartinMond• 13 years ago

In case it's not clear, Caspar.js is a framework/library for PhantomJS

chris_engel• 13 years ago

While the topic is very interesting, I was very disappointed that the examples are written in some minor esotheric language instead of JavaScript.

dljsjr• 13 years ago

I'm not so sure that CoffeeScript is accurately described as "minor and esoteric" these days…

coolsunglasses• 13 years ago

Casper.js (and Phantom, for that matter) has been pretty buggy and difficult to work with for me. Had better luck with Selenium, which makes me unhappy because I'd rather use something more code oriented.

ebiester• 13 years ago

Are you using the PageObjects pattern? It seems pretty code oriented to me.

lvh2• 13 years ago

(I've made this comment before on CasperJS/PhantomJS postings, but I've never gotten an answer.)

I love the idea, but I'm a bit worried that it's just webkit. Aren't all the other browsers important too? This is why I feel that Selenium still has a place, even though I agree that Casper is easier to use. Perhaps browserling is an appropriate answer?

I don't mean to disrespect CasperJS or PhantomJS, they're certainly wonderful tools, and any final automated functional test like this is infinitely better than none, but it's bad enough that people are developing for Webkit, do we really have to make it explicit by only testing on Webkit? ;)

someone13• 13 years ago

Something else worth noting: the most recent release of PhantomJS actually has an implementation of the Selenium WebDriver protocol, so you can use that, if you wish:

http://phantomjs.org/release-1.8.html

edwinnathaniel2• 13 years ago

It implements the Selenium WebDriver protocol, but still executes it under WebKit.

The point of the parent is to test on multiple browsers.

edwinnathaniel2• 13 years ago

We're talking about "functional test" here.

Most likely your front-end/UI uses other libraries to handle cross-browser issues so your automation tests will focus on the functionality of the application as opposed to catching cross-browser bugs or performance issues.

The problem that PhantomJS solves is to run headless browser which is very useful for organization that runs their build/tests on their CI-server and would prefer minimal setups (as opposed to have "testing-labs" like the big guys [yahoo, ms, google]). That itself reduces the cost of development/testing cycle.

jdlshore• 13 years ago

I prefer Testacular for exactly this reason. It allows you to capture any number of browsers. I've attached my physical iPad to it, and IE 8 out of a VM.

JsTestDriver and Test'em 'Scripts do too. (I haven't tried Test'em yet, but that's what I hear.)

Granted, these aren't tools for functional testing like Selenium and (apparently) CasperJS, but functional tests are something you want to minimize as much as possible. They're slow-running and brittle.

lvh2• 13 years ago

Given that you're using CoffeeScript, is there a reason you're not using @ instead of this.?

tzaman2• 13 years ago

@ is the shorthand for this.

VeejayRampay• 13 years ago

That's exactly what he was asking: Since @foo is shorthand for this.foo, why are the code snippets littered with this.method, this.prop, this.blah and the likes?

DelvarWorld2• 13 years ago

Please don't encourage the use of phantomjs and its wacky ecosystem. It's incredible instability will bite you in the face very soon.

tjbarbour• 13 years ago

Can you expand? I'll be evaluating casper.js soon and would like to hear the 'pitfalls' Thanx!

DelvarWorld2• 13 years ago

phantomjs crashes almost non stop https://code.google.com/p/phantomjs/issues/list?can=2&q=...

senko• 13 years ago

If you're looking to use Casper.js on a Django project, have a look at the small wrapper around LiveServerTestCase we wrote to make it easier to call Casper, pass params (like server url), and the like: https://github.com/dobarkod/django-casper

Start testing your app with Casper.js

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