Null Pointer Exception During Integration Testing

[neilac333]

I am integration testing my first component, and I am finding a NullPointerException that I cannot find an explanation for.

Here is the class I am testing:

@Name("searchAction")
public final class searchAction extends Object {
 private String name;
 @In
 private SearchDelegate search;
 @Logger
 private Log logger;

...and so on

Here is my test:

public void testSearchActionComponent() throws Exception {
 logger.debug("Starting method testSearchActionComponent");

 new ComponentTest() {

 protected void testComponents() throws Exception
 {
 setValue("#{searchAction.name}", "Benzoic");
 }

 }.run();
 }

Finally, here is the exception:

java.lang.NullPointerException
 at org.jboss.seam.servlet.ServletApplicationMap.get(ServletApplicationMap.java:54)
 at org.jboss.seam.contexts.BasicContext.get(BasicContext.java:48)
 at org.jboss.seam.Component.getInstance(Component.java:1843)
 at org.jboss.seam.Component.getInstance(Component.java:1821)
 at org.jboss.seam.Component.getInstance(Component.java:1816)
 at org.jboss.seam.core.Expressions.instance(Expressions.java:253)
 at org.jboss.seam.mock.BaseSeamTest$ComponentTest.setValue(BaseSeamTest.java:160)
 at model.test.SearchActionAdvancedTest$2.testComponents(Unknown Source)
 at org.jboss.seam.mock.BaseSeamTest$ComponentTest.run(BaseSeamTest.java:170)
 at model.test.SearchActionAdvancedTest.testComponent(Unknown Source)

As you can see, I am not really even testing anything. I just wanted to see if this minimalist approach would pass, but it is not.

Please let me know if you need more information. Any insight is appreciated.

Thanks.

[pmuir]

Post the whole of the log output from TestNG

[neilac333]

I am not sure what sort of output you mean. I have checked the TestNG documentation, and there does not seem to be any specialized logging besides writing my own custom TestListenerAdapter.

I was actually just about to ask if there is a way to determine what Seam is looking for from the ServletApplicationMap. I tried setting all the logging levels in log4j.xml in the bootstrap folder to the level of DEBUG, and I ran Ant in -verbose mode. I am still not getting any useful information.

All I have so far is this:

DEBUG [model.test.SearchActionAdvancedTest] Starting method testSearchActionComponent
DEBUG [org.jboss.seam.contexts.TestLifecycle] >>> Begin test
DEBUG [org.jboss.seam.contexts.TestLifecycle] <<< End test

Obviously, that isn't much. Let me know how to add more logging beyond the measures I have described already, and I will be sure to provide that output as soon as possible.

Thanks.

[neilac333]

So I commented everything out in my test and tried this:

Assert.assertEquals(getValue("#{identity.loggedIn}"), false);

And I get the same NPE for a component that is BUILT_IN. It seems to me that I am either missing a JAR file in the classpath, or more likely I am missing a configuration file. The classpath for TestNG points to the bootstrap directory at the top level of the Seam 2.0 GA distribution. The only thing I have altered is log4j.xml--in order to set every logging level to DEBUG.

I have noticed components.xml is not in that directory. Should I add it and/or other files to get my tests running?

Thanks for any insight.

[neilac333]

I should probably mention that I am running my test by compiling all my code into a JAR file, which is included on the classpath of TestNG. This JAR has seam.properties located in the META-INF directory. Is this OK for my test to work?

If anyone has managed to get SeamTest to work for integration tests with Seam 2.0 GA, I would appreciate any insights.

Thanks.

[pmuir]

Did you use seam-gen to set up your project? Tests defintely work here.