BDD in Automation Testing

www.axon.vnfb.com/AxonActiveVietNam
Who Am I?
My name Nguyen Thi Hong Thuy
Studied at Danang University of Technology
Master of Computer Science
IT developing experience started at University in 2004
Java Developer at MagRabbit VN
Java Developer, Tester at Axon Active VN
Email thuy.nguyen@axonactive.vn

 The Importance of Requirements
 Behavior Driven Developments (BDD)
• Why born BDD?
• What is BDD?
• Why use BDD?
• BDD Style & Tools
 How we have applied BDD in our projects
 Workshop
 Conclusion of BDD
 Q&A
Agenda

The importance of requirements

Behavior Driven Developments

Test-driven development is a method of software development
in which unit testing is repeatedly done on source code
TDD
Workflow of TDD
REFACTOR
GREEN
(Pass)
RED
(Fail)
REPEAT PROCESS
1. Write a test
that fails
2. Make only
enough code
for it to pass
3. Improve
code quality

Why born BDD?

What is BDD?
Behavior-Driven Development (BDD) is a set of
software engineering practices designed to help
teams build and deliver more valuable, higher quality
software faster.

BDD
Building the right software
Automated Acceptance Criteria
API and code design
Building the software right
Feature injection
Collaboration
Living Documentation
What is BDD?

Workflow of TDD/BDD
BDD was originally designed as an improved version of TDD
TDD
BDD
Refactor
n cycles
Make the
test pass
Write a
failing test
Write a failing
feature test

Customer tells the
business analyst
what he wants
Why use BDD?
The business analyst
writes a requirements
document
The developer translates the
requirements into software
The tester translates the
requirements into test cases
Customer
The traditional development process

 There are many opportunities for information to get lost in
translation, be misunderstood, or just be ignored
 Chances are that the new module itself may not do exactly what
was required and that the documentation won’t reflect the initial
requirements
Problems

Why use BDD?
The development process is applying BDD
Customer and BA have a
conversation about what
he needs.
BA, the developer and
the tester elaborate the
requirements together
The automated tester
The manual tester
The developer
Customer

BDD Style – Feature file example
Meta:
Narrative:
In order to login ZingPoll successfully
As a user
I want to have single choice poll
So that I can create polls, share it to my friends & collect the option about it
Scenario: Create a single choice poll successful
Given I am on ZingPoll website
When I click the Sign In button on the menu bar to register an new account
Then The Sign In form should be shown
When I enter email <email> and password <password>
And I click the Sign In button on the form
Then I log in into website successful
When I enter <question> into the question field
And I enter the <first_anwser> and <second_answer> into the answer fields
And I click the Create Poll button
Then The poll is created successfully
Examples:
|email |password |question |first_anwser|second_answer
|bddteam1@gmail.com | zingpoll | Have you ever applied BDD in your project? |Yes |No|
Feature
Scenario
What business outcomes are you trying to achieve?
Who needs it ?
What must you do to help achieve this outcome?
Each row represents separate set of
test data

Feature: Login ZingPoll system
As a user
I want to login to Zingpoll website
So that I can use all features
Who’s using the system? What are they doing?
Why do they care?

Scenario: Login ZingPoll system successful
Given I am on ZingPoll website
When I click the Sign In button on the menu bar to register an new
account
Then The Sign In form should be shown
When I enter email <email> and password <password>
And I click the Sign In button on the form
Then I log in into website successful
• Given - Sets up preconditions, or context, for the scenario
• When - The action, or behavior, that we’re focused on
• Then - Checks post-conditions and verifies that the right thing happened
in the When stage

The principal activities and outcomes of BDD
Business goal Features Examples Executable
specifications
Low-level
specifications
Application code
Living
documentation
Real-time
progress reports
Technical
documentation
Automatic
validation

The principal activities and outcomes of BDD
Examples Executable
specifications
Low-level
specifications
Application code

How we have applied BDD in our current projects

Repositories

Build Jenkins

Pipeline

Workshop

Introduce ZingPoll Website

The Business Rules layer
The Business Flow layer
The Technical layer
Well-written automated acceptance criteria

Workshop
Story 1:
As a ZingPoll user
I want to login to ZingPoll
website
So that I can use all features

Workshop
Story 2:
As a ZingPoll user
I want to have single choice poll
So that I can create polls, share
it to my friends & collect the
option about it

Conclusion of BDD
 Focus effort
 Reduce waste and misaligned requirement
 Deliver more valuable software
 Make changes safety
 Faster and more reliable releases
 Reduced maintenance costs

Potential challenges of BDD
 BDD requires high business engagement and collaboration
 BDD works best in an Agile or iterative context
 Poorly written tests can lead to higher test-maintenance costs

Q&A

Thanks for your attention

BDD in Automation Testing

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