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Reza Rahman is a JavaEE and GlassFish Evangelist and recently spoke at the GlassFish User Group in London. Reza delivered a talk about 'Testing JavaEE applications using Arquillian': "This session outlines how to effectively test Java EE APIs like JSF, Servlet, CDI, EJB 3, JPA, WebSocket and JAX-RS. Java EE includes a number of new features that enhance testability like generic dependency injection, CDI @Alternative, portable extensions, embedded containers and JSF project stages. Using these features and best of breed tools like JUnit and Arquillian it is possible to perform unit, integration, system and functional testing for Java EE APIs at all layers of the application. In addition to discussing tools and features, the session will also demonstrate testing techniques like designing for testability, mock objects, isolation and test configuration." Keep an eye out for future GlassFish User Group events by joining us on MeetUp: http://www.meetup.com/GlassFish-User-Group/
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Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Public1
Testing Java EE Applicationsusing ArquillianReza RahmanJava EE/GlassFish [email protected]@reza_rahman
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Testing, J2EE and Java EE
Testing not addressed well by J2EE Java EE helps enormously by providing a number of enabling features Arquillian takes full advantage of these features Not the only solution, but best-of-breed Developer (unit and integration) testing focus for this talk
– Arquillian can also help with performance, system, etc testing
– Arquillian excels at integration/regression testing
I’ll primarily focus on JUnit, not TestNG– TestNG also supported by Arquillian
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Java EE Testing Enablers
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Testing Servlet
JAX-RS 2 client API comes in very handy! HttpUnit, HtmlUnit good tools as well Traditional problem is bootstrapping containers from tests
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Servlet Testing Demo
https://github.com/m-reza-rahman/testing-javaee
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Testing JSF 2
JSF 2 project stages invaluable for debugging and testing Warp ideal for complete JSF testing
– Client and server-side tests
Drone/Selenium, Graphene often sufficient
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JSF 2 Testing Demo
https://github.com/m-reza-rahman/testing-javaee
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Testing CDI/EJB 3
CDI increases Java EE component model level testability by leaps and bounds
Embedded containers, generic dependency injection, @Alternative, portable extensions, XML deployment descriptors, interceptors enablers
Both mock object based unit testing as well as integration testing is possible
Likely best to stick with integration testing using close to the real runtime environment
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Testing JPA
Embedded container, CDI and Arquillian integration works well for JPA Consider using embedded databases like Java DB, Derby, HSQL Defining data sources with the application - @DataSourceDefinition You can use JPA 2.1 data loading, schema generation and DBUnit for
better data consistency Tests can use transactions Take advantage of XML overrides
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CDI, EJB 3, JPA Testing Demo
https://github.com/m-reza-rahman/testing-javaee
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Testing JAX-RS, WebSocket (and JAX-WS)
You can use JAX-RS, WebSocket and JAX-WS client APIs with JUnit/Arquillian
For more complex cases consider UI based testing tools (e.g. soapUI for REST and SOAP)
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JAX-RS, WebSocket Testing Demo
https://github.com/m-reza-rahman/testing-javaee
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Arquillian Supported Containers
Container Support
GlassFish Embedded, Managed, Remote
WildFly, JBoss Embedded, Managed, Remote
Weld SE, Weld EE Embedded
TomEE, OpenEJB, OpenWebBeans Embedded, Managed, Remote
WebLogic Managed, Remote
WebSphere, Liberty Managed, Remote
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Summary
Robust, end-to-end testing a true reality with modern Java EE EJB 3, JPA 2, CDI, JSF 2, embedded containers, portable extensions,
XML deployment descriptors, client APIs key enablers Range of new and existing tools available to fit your testing
methodology, requirements Arquillian best-of-breed Java EE testing tool Rich set of features, vibrant community Get involved!
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Learning More
Java EE Tutorials– http://docs.oracle.com/javaee/7/tutorial/doc/home.htm
Arquillian– http://jboss.org/arquillian
The Aquarium– http://blogs.oracle.com/theaquarium
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