Null pointer while testing annotated controller

[Deepti Singh]

Hi,

I am using annotations to create a controller method which accepts a string and returns a ModelAndView object that contains the response object and the view.

The controller goes something like this.

@Controller
@RequestMapping("/abc/(*:xyz)")
public class MyController {

   private final Log log = LogFactory.getLog(getClass());

   @Autowired(required = true)
   private MyProxy myProxy;

   @RequestMapping(method = RequestMethod.GET)
   @SuppressWarnings("unchecked")
   public ModelAndView getMyData(@RequestParam(required = false, value = "xyz") String myStr) {

      MyObject myObject= null;
         if (myProxy!= null) {
                 myObject= myProxy.getProxyData(myStr);
            }
      return new ModelAndView("myView", "myData", myObject);
   }
}

Now, when I am testing this controller, I am getting a null pointer exception when i call the getMyData() method on the controller. Why isnt my controller object being created ?

The test class is this :

public class TestMyClass extends TestCase {

   private MyController controller;

   @Before
   public void setup() {
      controller = new MyController ();
   }

   @Test
   public void testMyData()  {
      assertEquals("myView", controller.getMyData("83765876"));
   }

}

[Marten Deinum]

You are mixing junit styles don't do this either use Junit 3 or Junit4, also why do it in a setup or before method? You don't keep state so simply assign it.

private MyController controller = new MyController();

@Test
public void testMyData() {
  assertEquals("myView", controller.getMyData("ajf));
}

[Deepti Singh]

Thanks Marten .

I removed the TestCase class inheritance and it works now.

public class TestMyClass {

private MyController controller = new MyController();

@Test
public void myDataStr() {
  Assert.assertEquals("myView", controller.getMyData("83765876"));
}

}

[Deepti Singh]

Hi Marten,

I have another question related to the first.

My controller has an ejb call . 'MyController' is getting instantiated now, however, its the MyProxy which is not.

This works fine when called from a browser or a java client, hence am assuming that all the context definitions are working fine. Its only when called from a test class that it doesnt.

What do i have to do to instantiate the Bean Proxy in my test class ?

@Controller
@RequestMapping("/abc/(*:xyz)")
public class MyController {

   private final Log log = LogFactory.getLog(getClass());

   @Autowired(required = true)
   private MyProxy myProxy;

   @RequestMapping(method = RequestMethod.GET)
   @SuppressWarnings("unchecked")
   public ModelAndView getMyData(@RequestParam(required = false, value = "xyz") String myStr) {

      MyObject myObject= null;
         if (myProxy!= null) {
                 myObject= myProxy.getProxyData(myStr);
            }
      return new ModelAndView("myView", "myData", myObject);
   }
}