Getting started with JUnit testing

[agatap]

Hello

I am working as a developer on a web-application, that uses Alfresco as a core on the serverside to handle users, registration, content etc.
As a test driven programmer, I would like to white-box test my code.

So, my question is - how do we get started writing unit tests for our bean-code? Is there a simple way of setting up a mock-environment, or a very basic Alfresco environment?
Can you point me to some documentation?
How have you guys tested your stuff?

Best
Agata

10:51:24,434 ERROR [transform.magick.AbstractImageMagickContentTransformer] ImageMagickContentTransformer not available: Failed to perform ImageMagick transformation:
Execution result:
   os:         Windows XP
   command:    imconvert "C:\DOCUME~1\agatap\LOCALS~1\Temp\Alfresco\ImageMagickContentTransformer_init_source_50290.gif"  "C:\DOCUME~1\agatap\LOCALS~1\Temp\Alfresco\ImageMagickContentTransformer_init_target_50291.png"
   succeeded:  false
   exit code:  1
   out:       
   err:        Cannot run program "imconvert": CreateProcess error=2, The system cannot find the file specified
java.lang.ExceptionInInitializerError
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at junit.framework.TestSuite.createTest(TestSuite.java:131)
   at junit.framework.TestSuite.addTestMethod(TestSuite.java:114)
   at junit.framework.TestSuite.<init>(TestSuite.java:75)
   at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestLoader.getTest(JUnit3TestLoader.java:102)
   at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestLoader.loadTests(JUnit3TestLoader.java:59)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serverConnector' defined in class path resource [alfresco/core-services-context.xml]: Invocation of init method failed; nested exception is java.io.IOException: Cannot bind to URL [rmi://localhost:50500/alfresco/jmxrmi]: javax.naming.NameAlreadyBoundException: alfresco/jmxrmi [Root exception is java.rmi.AlreadyBoundException: alfresco/jmxrmi]
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1088)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:429)
   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:250)
   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:247)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:161)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:270)
   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:346)
   at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:92)
   at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:77)
   at org.alfresco.util.ApplicationContextHelper.getApplicationContext(ApplicationContextHelper.java:55)
   at org.alfresco.sample.ContentHitsAspectTest.<clinit>(ContentHitsAspectTest.java:55)
   … 13 more
Caused by: java.io.IOException: Cannot bind to URL [rmi://localhost:50500/alfresco/jmxrmi]: javax.naming.NameAlreadyBoundException: alfresco/jmxrmi [Root exception is java.rmi.AlreadyBoundException: alfresco/jmxrmi]
   at javax.management.remote.rmi.RMIConnectorServer.newIOException(Unknown Source)
   at javax.management.remote.rmi.RMIConnectorServer.start(Unknown Source)
   at org.springframework.jmx.support.ConnectorServerFactoryBean.afterPropertiesSet(ConnectorServerFactoryBean.java:168)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1118)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1085)
   … 24 more
Caused by: javax.naming.NameAlreadyBoundException: alfresco/jmxrmi [Root exception is java.rmi.AlreadyBoundException: alfresco/jmxrmi]
   at com.sun.jndi.rmi.registry.RegistryContext.bind(Unknown Source)
   at com.sun.jndi.toolkit.url.GenericURLContext.bind(Unknown Source)
   at javax.naming.InitialContext.bind(Unknown Source)
   at javax.management.remote.rmi.RMIConnectorServer.bind(Unknown Source)
   … 28 more
Caused by: java.rmi.AlreadyBoundException: alfresco/jmxrmi
   at sun.rmi.registry.RegistryImpl.bind(RegistryImpl.java:123)
   at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
   at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:386)
   at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
   at sun.rmi.transport.Transport$1.run(Transport.java:159)
   at java.security.AccessController.doPrivileged(Native Method)
   at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
   at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
   at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
   at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
   at java.lang.Thread.run(Thread.java:619)
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknown Source)
   at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
   at sun.rmi.server.UnicastRef.invoke(Unknown Source)
   at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
   … 32 more

[pmonks]

Probably the best examples to look at are:
1. Alfresco's own JUnit tests
2. the SDK example projects (eg. FirstFoundationClient)
which demonstrate how to bootstrap a minimal Alfresco repository outside of a servlet container.

The Alfresco source code (which includes both of the above) is available from our public Subversion server - details on how to access this are at http://wiki.alfresco.com/wiki/Alfresco_SVN_Development_Environment.

[agatap]

I browsed trough the sample project that come with the SDK.
One of them contained a JUnit test - the SDK Custom Aspect contains a JUnit test.
I tried to run it, and it failed, the stack trace below the post.
Obviously - I did miss something about the setup?
So - how can I run a JUnit test straight from my IDE (eclipse).
I use WindowsXP/OSX (depends on mood), try to run on the localhost with an MySQL installation.

Best,
Agata

[jperilla]

I am having the same problem. Did you ever get an answer to this?

[mrogers]

For example I'm running the LockServiceImplTest from Eclipse at the moment.

Select the unit test in Eclipse and Right click on it.  Then Run As Junit test. 😎

The only thing I fiddle with is the project class path to include my Tomcat shared folder which contains my configuration settings, without that it would use the default settings.