Unit testing Tapestry 4.1 components with TestNG and Easymock

[Ray McBride]

Hi All,

We have recently upgrading one of our apps to Tapestry 4.1 and I have 
been asked to write some unit tests for the existing components.

I am new to Tapestry, TestNG and Easymock, so please bear with me.

I am trying to get the test to run through an if statement, but I keep 
getting the following runtime exception:

java.lang.IllegalStateException: missing behavior definition for the 
preceeding method call getSession(true)

The class for the component is as follows:

public abstract class ViewProductDetail extends BaseComponent
{
@InjectObject("infrastructure:request")
 public abstract WebRequest getRequest();
 public abstract void setRequest(WebRequest webRequest);

 @InjectState("visit")
 public abstract Visit getSession();

   public Double getSaving()
 {
   ...

     if(getRequest().getSession(false) != null)
     {
       Visit visit = getSession();
       String discountcode = visit.getDiscountCode();
       Double saving = new Double(rrp.getValue().doubleValue() -     
                   price.getValue(discountcode).doubleValue());
       return saving;
     }
     else
     {
       ...
   }
 }

My Test class is as follows:

public class ViewProductDetailTest extends TestBase
{
 ...

 @BeforeClass
 public void setUp() {
   viewProductDetail = newInstance(ViewProductDetail.class);
   webRequest = createMock(WebRequest.class);
   webRequest.getSession(true);
   viewProductDetail.setRequest(webRequest);
 }

 @Test (dataProvider = "CreateProduct")
 public void testGetSaving(Product product) {
   try
   {
     viewProductDetail.setProduct(product);
     Double saving = viewProductDetail.getSaving();
     assertEquals(saving, 0.02);
   }
   catch(RuntimeException e){
     System.out.println(e.toString());
   }
}

I'm not sure to the best way to create a session so that my if statement 
will be true. I'm trying to use webRequest.getSession(true), but  it 
doesnt seem to work and I don't know if there is a better way or if I 
have missed something.

Thanks for any help

Ray


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