1. Warin Laocharoen
Knowledge-Sharing Session - 23 May 2013
Java UI Unit Testing with
Jemmy
Wednesday, 22 May, 13

2. • What's Jemmy
• Jemmy API Usage
• Unit Testing with Jemmy
• Future Integration
• Q&A
Agenda
Wednesday, 22 May, 13

3. • A Java library that is used to create
automated tests for Java GUI applications.
• It contains methods to reproduce all user
actions which can be performed on
• Jemmy2 for Swing/AWT
• Jemmy3 for JavaFx components
What's Jemmy
Wednesday, 22 May, 13

4. • not so many tutorials
• not so many presentations and documents
• few samples
What's Jemmy ( cont. )
Wednesday, 22 May, 13

5. • Test Harness
Meaning it is not a tool for test execution.
Any harness which is able to execute tests
written in Java (such as JUnit, for example)
could be used to execute tests.
• Record-Replaying Tool
Jemmy is not ....
Wednesday, 22 May, 13

6. • the same JVM as tested-application
• simulate user operations on components by calling
events
• search components recursively by given criteria
• criteria defined as implementation of
ComponentChooser Interface
How Jemmy works ?
Wednesday, 22 May, 13

7. Jemmy Workflow
• Find controls you need to do action for
• Do something with that control
• Verify Results of the action
Find Do Verify
Failure Analysis
Pass Pass
Pass
Failed Failed Failed
Wednesday, 22 May, 13

8. Jemmy API
• Operators
used for capture components & actions
• QueueTool / Timeouts
timing tool
• Utility
Wednesday, 22 May, 13

9. Unit Testing with Jemmy
• integrated with Mock Framework (EasyMock)
• support Continuous Integration (Jenkins)
Wednesday, 22 May, 13

10. DEMO
Wednesday, 22 May, 13

11. • integrated with BDD
( Behavior-Driven Development )
• Borden Automated Regression Test supported
Future Integration
Wednesday, 22 May, 13

12. Based on Gherkins
Step Definitions
• Given
•When
•Then
•And
defined syntax with:
Wednesday, 22 May, 13

13. References
• http://jemmy.java.net
• http://wiki.netbeans.org/Jemmy
• http://www.slideshare.net/pa810p/jemmy-
introduction
• http://github.com/cucumber/cucumber-jvm
Wednesday, 22 May, 13

14. Q & A
Wednesday, 22 May, 13