Testing DAO built with Criteria API using Jmock

Question

I'm trying to unit test my DAO which uses the Criteria API. The Criteria object I have has a number of expressions and returns a unique result.

The problem I have is that when I use Jmock to create an expectation I have to create one for the criteria.uniqueResult() command and I have to set a return type. The return type is a custom type which has been created by Hibernate as a mapping file to my database table. When I run the test however I get a ClassCastException because in the working method the return type is an Object which I cast to my custom Hibernate type object. For some reason I cant get Jmock to understand this

eg.

Inside the method I want to test I have the following;

MyCustomObject customObject = (MyCustomObject)criteria.uniqueResult();

and then in my expectation I have;

oneOf(criteria).uniqueResult();will(returnValue(new MyCustomObject()))

any ideas how I can test this?

Answer 1

There is an alternative.

http://code.google.com/p/hibernatemock/

Real criteria/hql testing...