The document discusses Behavior Driven Development (BDD) and its principles, emphasizing the need for business and technology stakeholders to communicate effectively. It introduces Cucumber, a tool for functional testing that allows non-technical users to express application functions in plain text, serving both as documentation and executable examples. Additionally, it mentions the integration of Cucumber with various JVM languages and resources for further exploration.

1. You've got Cucumber in my
Java....and it tastes great!!!
Emmanuel Bernard
> Aaron Walker
Hibernate Search in Actio
a.walker@base2services.com
> blog.emmanuelbernard.c
@aaronwalker
> twitter.com/emmanuelbe
www.base2services.com
base2Services Pty Ltd 2010

2. • BDD WTF???
base2Services Pty Ltd Commercial in Confidence 2010

3. BDD
~ Behaviour Driven Development ~
“BDD facilitates agile development, which is an
approach to develop functional software, within
reasonable timeline, making everyone happy, without
killing anyone, or
burning down any bank.”
base2Services Pty Ltd 2010

4. BDD's Core Principles
• It's all behaviour
“ The business & technology people should be
speaking the same words when referring to the
same idea,there should not be any translator.”
Behaviour: the addition of N values should yield the
summation of them
Example: the addition of 2 + 4 +1 should yield 8
base2Services Pty Ltd 2010

5. BDD's Core Principles
• Deliver stakeholder value
“ Whatever you are doing, it should be delivering
business value, or increasing our ability to deliver
value, if the activity doesn't achieve this, stop
doing it”
base2Services Pty Ltd 2010

6. Cucumber
$'
(
• Is not something your mother
made you eat
• a tool for functional testing
• by Aslak HellesØy, many other
nice people
• allows non-technies to express
app's functions in plain text
• plain text serves as
documentation executable
examples
base2Services Pty Ltd 2010

7. YES....plain text
%% +
base2Services Pty Ltd 2010

8. Given | When |Then
• GIVEN ... setting up system to a known
state
• WHEN ... exercising an event
• THEN ... verifying an outcome
base2Services Pty Ltd 2010

9. An now for the JAVA
• Cuke4Duke
• Cucumber support for the JVM:
• Java, Scala, Groovy, Clojure, Ioke,
Javascript, Spring, Guice, PicoContainer,
WebDriver, Ant and Maven
• http://github.com/aslakhellesoy/cuke4duke/
base2Services Pty Ltd 2010

10. Enough Slide-ware
Show me the Code!!!
base2Services Pty Ltd 2010

11. Questions
• http://cukes.info/ - Cucumber
• http://github.com/aslakhellesoy/cucumber
• http://github.com/aslakhellesoy/cuke4duke
• a.walker@base2services.com
• github.com/aaronwalker
base2Services Pty Ltd 2010