The document discusses Behavior Driven Development (BDD) using Concordion and Selenium. It describes how BDD encourages collaboration between developers, QA, and business stakeholders. The document outlines how Concordion allows writing automated acceptance tests in Java that interact with a browser using Selenium. It provides an example of a site test and notes the code is on GitHub. It discusses alternatives to Concordion and argues UI tests are better replaced with lower-level integration or functional tests. The conclusion states BDD works best for tight business-engineering collaboration and may not be useful for every project.

1. BDD with Java using
Concordion and Selenium
September 2012
Oleksiy Rezchykov
@ua_spring #JugLviv

2. About me
Software Engineer for more
than 10 years
Working with Spring during last
6 years
Pragmatic programmer
SpringByExample.com.ua
founder
Testing Automation, Continuous
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Integration, Continuous
Delivery Consultant
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3. Agenda
What is BDD for?
BDD + Selenium how this works together
Some code
Alternatives
Approach criticism
Conclusion
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4. Everything started with
XP
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5. Then comes TDD
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6. What is TDD?
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7. TDD is great, but…
Who will take care of the quality?
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8. What exactly TDD is?
A 2005 study found that using TDD meant writing
more tests and, in turn, programmers who wrote
more tests tended to be more productive.
Hypotheses relating to code quality and a more
direct correlation between TDD and productivity
were inconclusive.
Wikipedia
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9. What exactly TDD is?
Test-driven development offers more than just
simple validation of correctness, but can also
drive the design of a program
Wikipedia
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10. An attempt to fix TDD -
ATDD
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11. An attempt to fix TDD -
ATDD
Acceptance Test Driven Development (ATDD) is a
practice in which the whole team collaboratively
discusses acceptance criteria, with examples, and
then distills them into a set of concrete
acceptance tests before development begins.
http://testobsessed.com/blog/2008/12/08/acceptance-test-
driven-development-atdd-an-overview/
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12. An attempt to fix TDD -
ATDD
Acceptance TDD helps coordinate software
projects in a way that helps us deliver exactly
what the customer wants when they want it, and
that doesn’t let us implement the required
functionality only half way.
http://www.methodsandtools.com/archive/archive.php?id=72
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13. What is BDD?
At the heart of BDD is a rethinking of the
approach to unit testing and acceptance
testing: unit test names are whole sentences
starting with the word "should" and they are
written in order of business value.
BDD encourages collaboration among
developers, QA and non-technical or business
participants in a software project. It has
evolved over the last few years.
Wikipedia
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14. Magical words: GWT
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15. BDD + Selenium
Concordion is an open source tool for writing
automated acceptance tests in Java*
* There are also versions for .NET, Python, Scala, and Ruby.
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16. How this works?
Concordion
WebDriver Browser
Test Runner
TestNG/JUnit
PageObject
test
Concordion TestNG/JUnit
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test spec test methods
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17. Some code
Site test example
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18. Code on the GitHub
https://github.com/mcgray/presentation-
showcases/tree/master/JUG-Lviv
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19. Alternatives: platform
Be pragmatic – don’t use Java where it is not
needed.
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20. Alternatives: BDD
frameworks
Cucumber
JBehave
easyB
…
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21. Alternatives: UI tests
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22. Approach criticism
Often “pure BDD” is not needed - ATDD is
enough
Usually UI-tests are better to replace with
lower-level tests (e.g. integration or even
functional)
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23. Conclusion
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24. Talking seriously…
BDD is designed for a projects where business
and engineering are working tightly
BDD is not useful for every project
BDD adoption is a complex process
every team member is responsible for a
product quality
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25. Questions?
@twincengray
@ua_spring
oleksiy.rezchykov@gmail.com
SpringByExample.com.ua
mcgray.com.ua
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