[jboss-user] [JBoss AOP] - Re: Using AOP to mock out dependecies for unit-test

[stale.pedersen@jboss.org]

hi again. the problem is within the generated code and not in your pointcutdef. the PersistenceHelper constructor is "wrapped" in aop code when we instrument it, and that method will only accept an object of type PersistenceHelper. - not the interface. thats why it is throwing a classcastexception since it get a MockPersistenceHelper and not a PersistenceHelper.
atm there is no way around this, ill discuss with the team if this is something we should change, and ill let you know what we decide.

a solution for your problem would be to put the constructor in a method and just intercept that method. something like:public class AOPUnitTestManagerBean {
  |   
  |     private IPersistenceHelper helper;
  |     
  |     public AOPUnitTestManagerBean() {
  |         helper = init();
  |     }
  | 
  |     private IPersistenceHelper init() {
  |        return new PersistenceHelper(null);
  |     }
  |     
  |     public void createObject(Object o) {
  |         helper.create(o);
  |     }
  | }

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