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Devoxx UK 2013 Test-Driven Development with JavaEE 7, Arquillian and Embedded Containers

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Peter Pilgrim
Peter Pilgrim

In this session, we introduce the Java developer to the Arquillian framework, Gradle and the Enterprise container technologies in Java EE 7. As a lucrative bonus we will cover building EJB and Java EE 7 tests applications with Gradle, the latest and greatest build framework for the Java platform, which improves on Apache Maven. The Java EE specification full contains three different containers, namely the Web, the EJB and the CDI containers. All of them can be reached using the Arquillian Framework, and this means there is now one general testing framework, which developers should learn as part of their professional duties. The session will cover writing meaningful tests for CDI, EJB and JAX-RS. Along the way, we will introduce new features of EJB 3.2, CDI 1.1 and RESTful Services. GlassFish Embedded Container 4.0 will be demonstrated.

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Devoxx UK 2013 Test-Driven Development with JavaEE 7, Arquillian and Embedded Containers
Test Driven Development with Java EE 7, Arquillian and Enterprise Containers Peter Pilgrim Java Champion, Software Developer Independent Contractor @peter_pilgrim
Biography ■  Completed Java Sybase course in 1998 ■  Working as an Independent Contractor ■  Founded JAVAWUG 2004-2010 ■  Blue-chip business and Banking: IT, Deutsche, Credit Suisse, UBS, Lloyds Banking 3
The Java EE 7 Developer User Guide Written by Peter Pilgrim Late Summer 2013
Agile Software Development?
Why do we test?
Architectural Competencies Performance and Efficiency Stability and Robustness Maintainability and Refactor-ability
Tools of the Trade § Frameworks: JUnit, TestNG and XUnit; JBehave, Spock, ScalaTest § Integrated Development Environment and Selenium
How do we test?
The Test Driven Cycle Write A Failing Test Ensure All Make The Tests Pass Test Pass Refactor the Refactor the Main Code Test "Oh, East is East, and West is West, and never the twain shall meet.”, Rudyard Kipling, 1892
Essentials of Block Testing Assign Act Assert
Traditional Java Enterprise Testing Outside of the Container Mock and Stub objects Writing Tests around Deployment
Java EE 7
Java EE 7 Framework Updates Interface Boundary Management and Web and HTML Endpoints Storage Service Endpoints JAX RS 2.0 EJB 3.2 Servlet 3.1 WebSocket 1.0 JMS 2.0 CDI 1.1 JSF 2.2 Bean Validation 1.1 JPA 2.1 JSON 1.0
Time to Change JavaEE Testing
Open Source Integration Testing Peter Muir, David Blewin and Aslak Knutsen and from Red Hat JBoss.
Arquillian Test Framework Portable In-Container Integration Testing Deployment of Unit Test and Dependencies together Extension of Existing Test Framework Support
Shrink Wrap An Aid to Better Test Enterprise Components “What if we could declare, in Java, an object to represent that archive?” Builder pattern for Virtual JAR file
Context & Dependency Injection 1.1 Inject Beans in strongly typed manner Contextual Scopes, Qualifiers and Providers Life-cycle, Event Management and Event Listeners
Gradle Dependencies I dependencies { compile 'org.jboss.spec.javax.annotation:jboss-annotations-api_1.2_spec: 1.0.0.Alpha1' compile 'org.jboss.spec.javax.ejb:jboss-ejb-api_3.2_spec:1.0.0.Alpha2' compile 'javax.enterprise:cdi-api:1.1-PFD’ compile 'javax.validation:validation-api:1.1.0.CR3' compile 'org.hibernate:hibernate-validator:5.0.0.CR4' compile 'org.hibernate.javax.persistence:hibernate-jpa-2.1-api:1.0.0.Draft-14' runtime 'org.glassfish.main.extras:glassfish-embedded-all:4.0-b81’ testCompile 'org.jboss.arquillian.junit:arquillian-junit-container:1.0.3.Final' testCompile 'org.jboss.arquillian.container:arquillian-glassfish- embedded-3.1:1.0.0.Final-SNAPSHOT' testCompile 'junit:junit:4.11' }
Gradle Dependencies II dependencies { //... compile 'javax:javaee-api:7.0-b81' runtime 'javax:javaee-api:7.0-b81' //... testCompile 'junit:junit:4.11' }
Arquillian Test Structure I @RunWith(Arquillian.class) public class BasicUserDetailRepositoryTest { @Deployment public static JavaArchive createDeployment() { JavaArchive jar = ShrinkWrap.create(JavaArchive.class) .addClasses(BasicUserDetailRepository.class, UserDetailRepository.class, User.class) .addAsManifestResource( EmptyAsset.INSTANCE, "beans.xml"); return jar; } /* ... */ }
Arquillian Test Structure II @RunWith(Arquillian.class) public class BasicUserDetailRepositoryTest { /* ... */ @Inject private UserDetailRepository userDetailRepo; @Test public void shouldCreateUserInRepo() { User user = new User("frostj", "Jack", "Frost"); assertFalse( userDetailRepo.containsUser(user )); userDetailRepo.createUser(user); assertTrue( userDetailRepo.containsUser(user )); } }
Demo: Arquillian Context Dependency & Injection
Enterprise Java Beans 3.2 Session Beans as Java Co-Located or Remote Service Endpoints Transaction Support Lifecycle Event Management, Interception and Containment Endpoints Extended to Web Services, JAX-RS and/ or WebSockets
Demo: Arquillian Enterprise Java Beans
HTML5 Java WebSocket 1.0 WebSocket connections are peer full-duplex HTTP interactions over a session Reduced payload and lower latency Designed for asynchronous operations, performance and Efficiency
Demo: Arquillian Java WebSocket API 1.0
Embeddable Containers So-called “Container-less” Web Application Deliver an Container Embedded in Application You Have Control: Size, Framework and Libraries
GlassFish Embedded Initialization public class AbstractEmbeddedRunner { private int port; private GlassFish glassfish; public AbstractEmbeddedRunner init() throws Exception{ BootstrapProperties bootstrapProperties = new BootstrapProperties(); GlassFishRuntime glassfishRuntime = GlassFishRuntime.bootstrap(bootstrapProperties); GlassFishProperties glassfishProperties = new GlassFishProperties(); glassfishProperties.setPort("http-listener", port); // glassfishProperties.setPort("https-listener", port+1); glassfish = glassfishRuntime.newGlassFish(glassfishProperties); return this; } /* ... */ }
GlassFish Embedded Start and Stop public class AbstractEmbeddedRunner { /* ... */ public AbstractEmbeddedRunner start() throws Exception{ glassfish.start(); return this; } public AbstractEmbeddedRunner stop() throws Exception{ glassfish.stop(); return this; } /* ... */ }
GlassFish Embedded Deploy WAR public class AbstractEmbeddedRunner { /* ... */ public AbstractEmbeddedRunner deploy( String args[]) throws Exception{ Deployer deployer = glassfish.getDeployer(); for (String s: args) { String application = deployer.deploy(new File(s)); System.out.printf("deploying "+application); } return this; } /* ... */ }
Demo: GlassFish Embedded GlassFish 4.0 Embedded Server
Heavyweight vs. Lightweight How on earth do you weigh a Java container of any type?
Developer Summary
What You Will Do Tomorrow? Why Mock? Test Philosophy CHANGE! Arquillian Embedded Containers
Resources § Arquillian Integration Server http://arquillian.org/ § Java EE 7 Specification http://jcp.org/en/jsr/detail?id=342 § Java Web Socket API 1.0 http://java.net/projects/websocket-spec/downloads § GlassFish 4.0 Promoted Builds https://blogs.oracle.com/theaquarium/entry/ downloading_latest_glassfish_4_promoted § WebSocket Client http://www.websocket.org/echo.html § GlassFish Embedded Instructions http://embedded-glassfish.java.net/ § Thanks!
Creative Commons Attributions §  Brett Lider, Folded Ruler, http://www.flickr.com/photos/brettlider/1575417754/sizes/o/in/ photostream/ §  Daquella manera, Crutches donation to Haitian brothers and sisters, http://www.flickr.com/ photos/daquellamanera/4390506017/sizes/l/in/photostream/ §  Marcus Tschiae, Electric Power Framework perspective http://www.flickr.com/photos/tschiae/ 8417927326/sizes/h/ §  Falk Neumman, September 5, 2005, You’ve Got A Fast Car, http://www.flickr.com/photos/ coreforce/5910961411/ §  Stuart Webster, London skies from Waterloo Bridge, http://www.flickr.com/photos/ stuartwebster/4192629903/sizes/o/
Devoxx UK 2013 Test-Driven Development with JavaEE 7, Arquillian and Embedded Containers

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Devoxx UK 2013 Test-Driven Development with JavaEE 7, Arquillian and Embedded Containers

  • 2. Test Driven Development with Java EE 7, Arquillian and Enterprise Containers Peter Pilgrim Java Champion, Software Developer Independent Contractor @peter_pilgrim
  • 3. Biography ■  Completed Java Sybase course in 1998 ■  Working as an Independent Contractor ■  Founded JAVAWUG 2004-2010 ■  Blue-chip business and Banking: IT, Deutsche, Credit Suisse, UBS, Lloyds Banking 3
  • 4. The Java EE 7 Developer User Guide Written by Peter Pilgrim Late Summer 2013
  • 6. Why do we test?
  • 7. Architectural Competencies Performance and Efficiency Stability and Robustness Maintainability and Refactor-ability
  • 8. Tools of the Trade § Frameworks: JUnit, TestNG and XUnit; JBehave, Spock, ScalaTest § Integrated Development Environment and Selenium
  • 9. How do we test?
  • 10. The Test Driven Cycle Write A Failing Test Ensure All Make The Tests Pass Test Pass Refactor the Refactor the Main Code Test "Oh, East is East, and West is West, and never the twain shall meet.”, Rudyard Kipling, 1892
  • 11. Essentials of Block Testing Assign Act Assert
  • 12. Traditional Java Enterprise Testing Outside of the Container Mock and Stub objects Writing Tests around Deployment
  • 14. Java EE 7 Framework Updates Interface Boundary Management and Web and HTML Endpoints Storage Service Endpoints JAX RS 2.0 EJB 3.2 Servlet 3.1 WebSocket 1.0 JMS 2.0 CDI 1.1 JSF 2.2 Bean Validation 1.1 JPA 2.1 JSON 1.0
  • 15. Time to Change JavaEE Testing
  • 16. Open Source Integration Testing Peter Muir, David Blewin and Aslak Knutsen and from Red Hat JBoss.
  • 17. Arquillian Test Framework Portable In-Container Integration Testing Deployment of Unit Test and Dependencies together Extension of Existing Test Framework Support
  • 18. Shrink Wrap An Aid to Better Test Enterprise Components “What if we could declare, in Java, an object to represent that archive?” Builder pattern for Virtual JAR file
  • 19. Context & Dependency Injection 1.1 Inject Beans in strongly typed manner Contextual Scopes, Qualifiers and Providers Life-cycle, Event Management and Event Listeners
  • 20. Gradle Dependencies I dependencies { compile 'org.jboss.spec.javax.annotation:jboss-annotations-api_1.2_spec: 1.0.0.Alpha1' compile 'org.jboss.spec.javax.ejb:jboss-ejb-api_3.2_spec:1.0.0.Alpha2' compile 'javax.enterprise:cdi-api:1.1-PFD’ compile 'javax.validation:validation-api:1.1.0.CR3' compile 'org.hibernate:hibernate-validator:5.0.0.CR4' compile 'org.hibernate.javax.persistence:hibernate-jpa-2.1-api:1.0.0.Draft-14' runtime 'org.glassfish.main.extras:glassfish-embedded-all:4.0-b81’ testCompile 'org.jboss.arquillian.junit:arquillian-junit-container:1.0.3.Final' testCompile 'org.jboss.arquillian.container:arquillian-glassfish- embedded-3.1:1.0.0.Final-SNAPSHOT' testCompile 'junit:junit:4.11' }
  • 21. Gradle Dependencies II dependencies { //... compile 'javax:javaee-api:7.0-b81' runtime 'javax:javaee-api:7.0-b81' //... testCompile 'junit:junit:4.11' }
  • 22. Arquillian Test Structure I @RunWith(Arquillian.class) public class BasicUserDetailRepositoryTest { @Deployment public static JavaArchive createDeployment() { JavaArchive jar = ShrinkWrap.create(JavaArchive.class) .addClasses(BasicUserDetailRepository.class, UserDetailRepository.class, User.class) .addAsManifestResource( EmptyAsset.INSTANCE, "beans.xml"); return jar; } /* ... */ }
  • 23. Arquillian Test Structure II @RunWith(Arquillian.class) public class BasicUserDetailRepositoryTest { /* ... */ @Inject private UserDetailRepository userDetailRepo; @Test public void shouldCreateUserInRepo() { User user = new User("frostj", "Jack", "Frost"); assertFalse( userDetailRepo.containsUser(user )); userDetailRepo.createUser(user); assertTrue( userDetailRepo.containsUser(user )); } }
  • 25. Enterprise Java Beans 3.2 Session Beans as Java Co-Located or Remote Service Endpoints Transaction Support Lifecycle Event Management, Interception and Containment Endpoints Extended to Web Services, JAX-RS and/ or WebSockets
  • 27. HTML5 Java WebSocket 1.0 WebSocket connections are peer full-duplex HTTP interactions over a session Reduced payload and lower latency Designed for asynchronous operations, performance and Efficiency
  • 29. Embeddable Containers So-called “Container-less” Web Application Deliver an Container Embedded in Application You Have Control: Size, Framework and Libraries
  • 30. GlassFish Embedded Initialization public class AbstractEmbeddedRunner { private int port; private GlassFish glassfish; public AbstractEmbeddedRunner init() throws Exception{ BootstrapProperties bootstrapProperties = new BootstrapProperties(); GlassFishRuntime glassfishRuntime = GlassFishRuntime.bootstrap(bootstrapProperties); GlassFishProperties glassfishProperties = new GlassFishProperties(); glassfishProperties.setPort("http-listener", port); // glassfishProperties.setPort("https-listener", port+1); glassfish = glassfishRuntime.newGlassFish(glassfishProperties); return this; } /* ... */ }
  • 31. GlassFish Embedded Start and Stop public class AbstractEmbeddedRunner { /* ... */ public AbstractEmbeddedRunner start() throws Exception{ glassfish.start(); return this; } public AbstractEmbeddedRunner stop() throws Exception{ glassfish.stop(); return this; } /* ... */ }
  • 32. GlassFish Embedded Deploy WAR public class AbstractEmbeddedRunner { /* ... */ public AbstractEmbeddedRunner deploy( String args[]) throws Exception{ Deployer deployer = glassfish.getDeployer(); for (String s: args) { String application = deployer.deploy(new File(s)); System.out.printf("deploying "+application); } return this; } /* ... */ }
  • 33. Demo: GlassFish Embedded GlassFish 4.0 Embedded Server
  • 34. Heavyweight vs. Lightweight How on earth do you weigh a Java container of any type?
  • 36. What You Will Do Tomorrow? Why Mock? Test Philosophy CHANGE! Arquillian Embedded Containers
  • 37. Resources § Arquillian Integration Server http://arquillian.org/ § Java EE 7 Specification http://jcp.org/en/jsr/detail?id=342 § Java Web Socket API 1.0 http://java.net/projects/websocket-spec/downloads § GlassFish 4.0 Promoted Builds https://blogs.oracle.com/theaquarium/entry/ downloading_latest_glassfish_4_promoted § WebSocket Client http://www.websocket.org/echo.html § GlassFish Embedded Instructions http://embedded-glassfish.java.net/ § Thanks!
  • 38. Creative Commons Attributions §  Brett Lider, Folded Ruler, http://www.flickr.com/photos/brettlider/1575417754/sizes/o/in/ photostream/ §  Daquella manera, Crutches donation to Haitian brothers and sisters, http://www.flickr.com/ photos/daquellamanera/4390506017/sizes/l/in/photostream/ §  Marcus Tschiae, Electric Power Framework perspective http://www.flickr.com/photos/tschiae/ 8417927326/sizes/h/ §  Falk Neumman, September 5, 2005, You’ve Got A Fast Car, http://www.flickr.com/photos/ coreforce/5910961411/ §  Stuart Webster, London skies from Waterloo Bridge, http://www.flickr.com/photos/ stuartwebster/4192629903/sizes/o/