Automate testing with behat, selenium, phantom js and nightwatch.js (5)

©2017 Faichi Solutions Pvt. Ltd.
Automate Testing with Behat,
Selenium, PhantomJs and
Nightwatch.js

©2017 Faichi Solutions Pvt. Ltd. 2
Nikhil Sukul
Senior Drupal Architect
Faichi Solutions LLC
nikhilsukul
nikhilsukul
Nikhil is an open source enthusiast and
contributor to Drupal and its community. He
has an overall software experience of 17+
years and has been active in Drupal space
since last 9 years.
Speakers, who?
Gaurav Bajpai
Senior Drupal Developer
Faichi Solutions LLC
gaurav02b
gaurav-bajpai
Gaurav is an active member and contributor to
Drupal community. His overall Drupal experience is
5+ years. He is Acquia certified developer.

What is Testing

• In general, testing is finding out how well something
works,
• Software testing is the process of evaluation a software
item to detect differences between given input and
expected output.

How to do Testing

Why Testing

• To point out the defects and errors made during the
development phases.
• Makes Customer’s reliability and their satisfaction in the
application.
• Effective performance of the software.
• Application resulting to failure is very expensive in future
or in later stages of the development.

Who will Test?

They will Test

Types of Testing
(By Execution)

Manual Testing Automation TestingManual Testing Automation Testing

Automation Testing Manual Testing
It is very much helpful in
regressions testing.
To execute the test cases first
time.
Runs test cases significantly
faster than human resources.
Running tests manually can be
very time consuming.
Good for automating the Build
Verification Testing (BVT) .
To execute the Build Verification
Testing (BVT) is very mundane
and tiresome.
Initial cost is high. Manual testing requires less cost
than automation.

Automated Testing

Real browser testing
Real Browsers are running and performing functions or
commands in front of users in UI. Examples of Real
browsers are Google Chrome, Firefox, and Internet
Explorer etc.

Headless browser testing
• Headless browsers are basically
web browsers that without a
graphical user interface.
• Examples of Headless browsers
are PhantomJS and ZombieJS etc.

Real vs Headless browser testing
• Headless Browsers faster than real browsers:
– Real browsers take time opening, rendering html, CSS, Javascript
and images while headless browsers don’t require it. Headless
browsers will start performing functions without waiting for page
to load completely.
• Headless browsers are not representing real users:
– user bugs like images are crashing or not as UI is not showing up
is very difficult to detect in headless browsers.
• Error detection in real browsers is easy pesy:
– In Real browser as functions are performing in front of user and
he can interact with it so he can easily detect where the tests
goes fail. And can easily debug if anything goes wrong.
• Headless browsers does not support Ajax.

Selenium WebDriver is a collection of open source APIs which
are used to automate the testing of a web application and it is
platform-independent.

How Selenium WebDriver works?
You can Download Selenium Jar from http://selenium-
release.storage.googleapis.com/index.html
Chrome
Driver
IE Driver

• Behat is an open source Behavior-Driven Development
framework for PHP.
• Behat is a tool to test the behavior of any application,
described in special language called Gherkin.
• Gherkin is a Business Readable, Domain Specific Language
created especially for behavior descriptions. It gives you
the ability to remove logic details from behavior tests.

Feature: Some terse yet descriptive text of what is desired
In order to realize a named business value
As an explicit system actor
I want to gain some beneficial outcome which furthers the goal
Scenario: Some determinable business situation
Given some precondition
And some other precondition
When some action by the actor
And some other action
And yet another action
Then some testable outcome is achieved
And something else we can check happens too
Scenario: A different situation
...

• Mink is the browser simulator for Behat.
• It is a browser emulator abstraction layer. It hides
emulator differences behind a single, consistent API.
• Mink Support for both in-browser and headless browser
emulators. It is a PHP 5.3+ library.
You can Download and Install Behat and Mink:
http://docs.behat.org/en/v2.5/cookbook/behat_and_mink.html

“PhantomJS is a scripted, headless browser used for
automating web page interaction. PhantomJS
provides a JavaScript API enabling automated
navigation, screenshots, user behavior and assertions
making it a common tool used to run browser-based
unit tests in a headless system like a continuous
integration environment.” - wikipedia
You can Download and Install PhantomJS:
http://phantomjs.org/download.html

• Headless website testing:
– Run functional tests along with the frameworks like QUnit, Jasmine,
Mocha, Capybara, WebDriver etc.
• Screen capture:
– taking screen capture programmatically.
• The development can be very easier:
– While developing the UI, you can write the code by selecting the HTML
element wherever you wanted.
• Test framework:
– PhantomJS itself is not a test framework, it is only used to launch the
tests via a suitable test runner.
PhantomJS is a good:

CasperJS is a navigation scripting & testing utility for PhantomJS
headless browser, written in Javascript.
CasperJs

• A Browser Automation tool.
• It is an easy to use Node.js based End-to-End (E2E) testing
solution for browser based apps and websites.
• It uses the powerful W3C WebDriver API to perform
commands and assertions on DOM elements.
You can Download and Install NightWatch.js:
http://nightwatchjs.org/getingstarted#installation

Nightwatch.js architecture

What to use
and when?

References:
http://www.softwaretestingclass.com/automation-testing-vs-manual-testing/
http://www.teluguone.com/teluguoneUserFiles/Nothing can stop
Automation(1).png
http://www.seleniumhq.org/projects/ide/selenium-ide.gif
http://nightwatchjs.org/guide#theory-of-operation
http://www.slideshare.net/sethmcl/join-the-darkside-nightwatchjs
https://www.youtube.com/watch?v=-eJ2cZXyJ0E
http://www.algoworks.com/blog/choosing-your-automated-testing-frameworks-
phantomjscasperjs-vs-selenium/
http://craveco.de/posts/2016/03/16/part-2-automated-drupal-testing-behat-
selenium-and-headless-firefox
http://www.pngall.com/wp-content/uploads/2016/06/Browsers-
Transparent.png
http://economictimes.indiatimes.com/definition/selenium-web-driver
http://mink.behat.org/en/latest
http://phantomjs.org
https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Terminalicon2.p
ng/480px-Terminalicon2.png
http://shashikantjagtap.net/running-behat-scenarios-with-pahntomjs

41
CONNECT WITH US, ASK FOR A DEMO !
Faichi Solutions, LLC
640 W. California Ave Suite 210 Sunnyvale, CA 94086
Phone: +1 (408) 769-4941
Email: inform@faichi.com

FAICHI SOLUTIONS PVT LTD
USA:
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SUNNYVALE, CA 94086
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INDIA:
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THANK YOU

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