Arquillian: Effective tests from the client to the server

Arquillian: Effective TestsFROM THE CLIENT TO THE SERVER Lukas Fryc

Testing Testing Testing Testing #Agile Testing Testing#TDD Testing Testing Testing Testing “You can hear about testing Testing from everywhere!”

“But image testing oflarge enterpriseapplication.” Enterprise Java Web Application

“In such case, its noteasy to define how thetests should look like.” Testing...

“How would you completeequation?What word do youimagine when someonesays testing?” Testing = ?

“My favorite is...” Testing = Pain

“Its even possible tochange equation andmake the testingenjoyable?” Testing = Enjoyable!

No one saves the World?

“There is one: he is braveand comes from far deepspace...”

“And brings heavy gearfor fighting with alienbugs...”

“...and he is proud toshare his powerful gearwith us!”

“At first, he comes with Ability to split one big deployment into manysmall, testing as little ascomponents as possible in separation.”

“And he makes surethese deployments work on various of earth application servers.”

“...and once he deploys the deployment into container, he makes sureyou have all the goodness from inside available using dependency injection.”

“...and thats all backedwith strong development tools.”

“That all, and you can run it just from your IDE, re- using what you already now.”JUnit TestNG

Testing Revolution

Ike brings tests to the Server

But what about the Client?

The little bit of Theory...

“Lets have ideal testingpyramid in mind,otherwise...”

Enough Theory!

Lets bring tests to the Client

“But it isnt as simple asin Java - many differentenvironments.”

“Fortunately there is toolwhich allows you to writetests in unified API for allthose browsers.”

“And the even supportsmocked browsers withsame API.”

Oh, such a great tool!

Lets invade client!

“Ouch, we need some abstraction!”

“Even if we use favoriteprogrammatic approach,we can end up with manytests which takes days topass and quickly turnsout into maintananceburden!” Java C# Python Ruby PHP Perl

At least, the app is covered...

“But this is what actuallySelenium see.”

Black Box

“Selenium is able to testtransitions betweenpages.” Page Transitions

“...and a portion of all thepage source code –JavaScript handlers,selected CSS and DOMchanges as reaction touser interaction.” A little bit of... DOM / JavaScript / CSS

Lets change the game...

Right tool for the Job

“Lets take the anoutstanding UIautomation tool...”

“And add your favoritelanguage.”

“And little bit of Alientechnology.”

“His name is Drone andhe is proud member ofArquillian crew!” Arquillian Drone

“He is basically ...” Hard-Worker

“Drone comes to bringthe browser to your test.”

Let Ike invade the Client

“But something else isneeded to make yourtests green.”

“Something enoughstrong to handle all theinconsistencies.”

“Lets deploy that to thebrowser page and seewhat happens!”

Strong type-safe API

Proven to handle AJAX

Invades the Client

Cross-Cutting Concerns

Arquillian Graphene

“We are still writing low-level interactioncommands, right?” Isnt that too low-level?

“Lets look for somethingon higher level.” Reusable Abstractions

“Introducing well-knownSelenium pattern:” Page Objects

“Lets imagine youhave page with all theelements and youexpress them asfields in the class.”

“You can even usefluent API for pagetransitions, sinceeach method canreturn next page asthe result.”

“But for modern AJAX-based application, itssimply not enough.”

“Lets think a littleabout that:In enterpriseapplications, yourather reuse UIcomponents.”

“What about creatingthe model of thesecomponents fromtheir users point ofview?”

Component Objects

Arquillian Graphene Component Objects

Review what we have

“Now, we can simplywrite tests on properlevel of abstractionwith minimumefforts.”

3 Missing Pieces

“What is missing here?” JUnitTestNG

How to avoid manual...?

“We can automatically snap screen-shots of the whole pages and compare them with historical data – its proven that rendering on one particular browser and platform, images will be binary same.”Screen-shot Comparison

Automated Visual Verification

The Music of the Future?

“It is music of thefuture, but there isproject which alreadyfocuses efforts there.” Arquillian RushEye

“2 parts are missing now: server is already covered with unit and integration tests, but what about the same tests for client?” JUnitTestNG

“Unit testing of clientis even moreimportant than unittesting of server,since it suffers fromenvironmentdiversity.” Unit Testing Client

“But once those unittests are written, howto automate them?Without automation,they are not tests.” Yet another tool to configure?

“Lets use theconfiguration what wehave for Drone – lethim instantiate abrowser, which willrun the unit tests.” Reuse the Automation Setup

“For writing actualtests, you can useyour favorite JS clienttesting tool.We are actuallyworking onintegration withQUnit.” QUnit

“And once the client is covered too, only integration tests for client are missing.” JUnitTestNG

“The integrationtesting of client isactually making sureit communicates withserver as expected.” Client / Server Round-Trip

Take client on the Tour to Server!

“We have browser and test on one side andserver on opposite side.”

“With UI automation, weare sending request from client to the server.”

“And server generates response.”

Black Box!

“On the other hand, when we are testing server from its JVM, we are mocking requests, which invokes verification code.”

Dont mock me!

“Lets make theconnection between client and server live.”

“Once the requests goes to the server, the test code is serialized and sent as part of the request.”

“Server de-serializes thetesting code from requestand uses it for verification of the server state inseveral lifecycle phases.”

“And then is the testing object sent back to theclient, which can validate it.”

“Client can verify the response and send another request.”

Crazy idea?

“But it already works!” JSFUnit

“Now, we are covered!” JUnitTestNG

Client Invasion

Its all?

It cant be without some buzz....

Lets go Mobile!

“Drone can actuallyreplace all the browsers.”

“And use Android driverfor connecting to mobile device.”

“Additionally, Androidextension can start theemulator or connect to real device, which is perfect addition for running in continuous integration systems.”

Arquillian Android

“Drone brings yourAndroid browser just into your test.”

Arquillian

Experience the future now

But I must to know more...

http://bit.ly/arq-preview

http://bit.ly/arq-users

Join us...

http://github.com/arquillian

http://bit.ly/arq-devs

http://bit.ly/jboss-testing

#jbosstesting @ irc.freenode.net

#Arquillian

Enjoy the Testing!

@LFryc Lukas Frychttp://bit.ly/lfryc

Photographs and pictures used in this presentation are authored by various authors and released under the Creative Commons licensehttp://www.flickr.com/photos/nickrussill/150410613/http://www.flickr.com/photos/audreyjm529/1240909256/http://www.flickr.com/photos/jo-h/6200225665/http://www.flickr.com/photos/stevendepolo/3796415185/http://www.flickr.com/photos/ucdaviscoe/6303100423/http://www.flickr.com/photos/sportbusiness/3542445412/http://watirmelon.com/2012/01/31/introducing-the-software-testing-ice-cream-cone/

Arquillian: Effective tests from the client to the server

by Lukáš Fryč

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Arquillian: Effective tests from the client to the server Presentation Transcript