Newbie: How implement junit test when having referenced data

[gilbertoca]

Hello,

I'm implementting a form with referended data, as class Pet of the example petclinic, but in my case:

public class Product implements Serializable {
private Integer id;
private String name;
private Category category;

......
}
So, I'm using appfuse and that form (ProductFormController) is running ok on browser. But, my test case not!
I'm getting this error:

[junit] [estoque] DEBUG [main] ProductFormControllerTest.testSave(68) | org.springframework.validation.BindException: BindException: 1 errors;

Here is my code:

public void testEdit() throws Exception {
log.debug("*********** TESTANDO EDIT ****************");
request = newGet("/editProduct.html");
request.addParameter("username", "tomcat");

mv = c.handleRequest(request, new MockHttpServletResponse());

assertEquals("productForm", mv.getViewName());
}

public void testSave() throws Exception {
log.debug("*********** TESTANDO SAVE ****************");
request = new MockHttpServletRequest("GET","/editProduct.html");
request.addParameter("id", "1");
request.addParameter("categoryId", "1");
mv = c.handleRequest(request, new MockHttpServletResponse());
Product product = (Product) request.getAttribute(Constants.PRODUCT_KEY);
assertNotNull(product);
request = new MockHttpServletRequest("POST","/editProduct.html");
super.objectToRequestParameters(product, request);
request.addParameter("name", "Updated Last Name");
request.addParameter("categoryId", (product.getCategory().getId()).toString());
mv = c.handleRequest(request, new MockHttpServletResponse());

product = (Product) request.getAttribute(Constants.PRODUCT_KEY);

assertNotNull(product);

Errors errors =
(Errors) mv.getModel().get(BindException.ERROR_KEY_PREFIX + "product");

log.debug(errors);

assertNull(errors);
assertNotNull(request.getSession().getAttribute("m essages"));
}


The controller class:

protected Map referenceData(HttpServletRequest request) throws ServletException {
Map model = new HashMap();
model.put("categories", mgr.getCategories());
return model;
}

protected void onBind(HttpServletRequest request, Object command, BindException errors) {
if (log.isDebugEnabled()) {
log.debug("ENTRANDO NO METODO 'onBind'...");
}
Product product = (Product) command;
product.setCategory(mgr.getCategory(Short.valueOf( request.getParameter("categoryId"))));
}
}

So, someone can give me a light here.

Gilberto

[gilbertoca]

Maybe someone may put some example of junit test when having referenced data. This way I can try to solve my problem (BindException)!

Thanks anyway!