Behavior-Driven Development and Automation Testing Using Cucumber Framework Webinar

Behavior-Driven Developmentand Automation Testing

using Cucumber Framework.

Trong Bui

KMS-Technology

[email protected]

http://www.kms-technology.com

06|12|2014

mailto:[email protected]


About: KMS-Technology

• Global Company

– U.S. Company

– Development Center in Ho Chi Minh City, Vietnam

– Act local, think global (around-the-clock / distributed global team model)

– 480 resources globally

• Proven and Experienced

– Founded in January, 2009

– 100% of clients are reference-able

– Microsoft Gold Partner

• Value Driven Philosophy

– Focus all aspects of business on delivering quality and value to our clients

2BDD AUTOMATION TESTING WITH CUCUMBER

About: Trong Bui

• QA Architect, Automation Test Lead at KMS-Technology

• 8 years experience in Software testing, including 4 years experience in Automation Test.

• Test tools: Cucumber, Selenium.

BDD AUTOMATION TESTING WITH CUCUMBER 3

Webinar Agenda:

• Introduction

• What is Behavior Driven Development (BDD)

• What is Cucumber

• BDD Automation Test with Cucumber

• Cucumber Live Demo

• Appendix:

– UI Test Setup with Page Object Pattern

– Cucumber Demo with Page Object Pattern


Introduction


Software Development Life Cycle


Classic example on collaboration skills


Skill gap and review dependency


Specific example of an requirement

Feature: login to the system.

As a user,

I want to login into the system when I provide username and password.

Scenario: login successfully

Given the login page is opening

When I input username into the username textbox

And I input valid password into the password textbox

And I click Login button

Then I am on the Home page


and normal Automation Test

@Test

public void fb_login_test() throws Exception {

driver.get("https://www.facebook.com/");

driver.findElement(By.id("email")).clear();

driver.findElement(By.id("email")).sendKeys("[email protected]");

driver.findElement(By.id("pass")).clear();

driver.findElement(By.id("pass")).sendKeys("********");

driver.findElement(By.id("u_0_e")).click();

}


What is Behavior Driven Development (BDD)


Definition:

Behavior-driven development (or BDD) is an agile software development technique that encourages collaboration between developers, QA and non-technical or business participants in a software project.


More specific:

It’s all about Given, When and Then – Maps easily to user stories

Extends Test Driven Development (TDD) by utilizing natural language that non- technical stakeholders can understand.

Encourages collaboration between Domain experts, Business Analysts, QA Engineers, Developers & Business Owners / Stakeholders

Driven by Business Value and finally, with the aim of delivering "software that matters".


BDD scenario detail:

A description of each specific case of the narrative. Such a scenario has the following structure:


Mapping User stories to BDD scenarios:

User story BDD scenario

As a calculator user, I want to add two numbers so that I can do addition.

Given I have two numbers 500 & 500 When I add them upThen I should get result 1000

As a Math teacher, I want to automate marks sorting process so that I can declare top 5 in my class.

Given a list of numbersWhen I sort the listThen the list will be in numerical order

As a QA engineer, I want to check a critical feature so that I can do smoke test easily.

Given I visit Google.comWhen I type ‘TestingWhiz' as a search string Then I should get search results matching TestingWhiz


Tooling principles:

The tooling reads a specification document.

The tooling directly understands completely formal parts of the ubiquitous language (such as the Given keyword in the example above).

Each individual clause in a scenario is transformed into some sort of parameter for a test for the user story.

The framework then executes the test for each scenario, with the parameters from that scenario.


What is Cucumber


Cucumber definition:

From Wikipedia, Cucumber is a software tool that computer programmers use for testing other software. It runs automated acceptance tests written in a Behavior-Driven Development (BDD) style.


http://en.wikipedia.org/wiki/Acceptance_testing

http://en.wikipedia.org/wiki/Behavior-driven_development

How cucumber works:


BDD Automation Test with Cucumber


Example of BDD scenario:

Feature: login to the system.

As a user,

I want to login into the system when I provide username and password.

Scenario: login successfully

Given the login page is opening

When I input username into the username textbox

And I input valid password into the password textbox

And I click Login button

Then I am on the Home page


BDD Scenario with parameters:


How Cucumber works:

BDD AUTOMATION TESTING WITH CUCUMBER

Given /^I launch "([^\"]*)" page$/ do |page| visit(page)

End

When /^I fill in "([^\"]*)" with "([^\"]*)"$/ do |field, value|fill_in field, :with => value

end

23

BDD scenario with multi dataset:


Cucumber Live Demo


Environment setup:

• Windows:

– Install Ruby Installer• Download: http://rubyinstaller.org/downloads [Ruby 1.9.3-p125]

• Install: rubyinstaller-xxx.exe

• Verify: gem

– Install Ruby DevKit• Download: http://rubyinstaller.org/downloads [DevKit-tdm-32-

xxx]

• Run: DevKit-tdm-32-xxx.exe

• Generate config.yml file: ruby dk.rb init

• Install DevKit: ruby dk.rb

• Test Installation: gem install rdiscount --platform=ruby


http://rubyinstaller.org/downloads

http://rubyinstaller.org/downloads

Q&A


THANK YOU

© 2013 KMS Technology


APPENDIX

APPENDIX – PAGE OBJECT PATTERN 29

UI Test Setup with Page Object Pattern


PAGE OBJECT PATTERN

Page Object Pattern is UI Automation Test good practice.

It represents the screens of Web app as a series of objects and encapsulates the features represented by a page.

It allows us to model the UI in our tests.

A page object is an object-oriented class that serves as an interface to a page of your AUT.


Page Object Pattern advantages:

Reduces the duplication of code

Makes tests more readable and robust

Improves the maintainability of tests, particularly when there is frequent change in the AUT. (Useful in Agile methodology based projects)


Cucumber Live Demo with Page Object Pattern


References

• Spring + Behavior-Driven-Development

• Cukes.info

• The Cucumber Book

• Page Object Pattern


http://www.cygnet-infotech.com/webinars/spring-behavior-driven-development-boon-for-busines

http://cukes.info/

https://pragprog.com/book/hwcuc/the-cucumber-book

https://code.google.com/p/selenium/wiki/PageObjects