Partial mocking of a delegate class

[oazmon]

Please provide the following information:

• Version of JMockit that was used: 1,21

• Description of the problem or enhancement request:
  When attempting to test a delegate class, and an highly simplified case would be:
  public static class MyClass implements Runnable {
  private Runnable r;

  public MyClass(Runnable r) {
      this.r = r;
  }
  
  public Runnable getRun() {
      return r;
  }
  
  public void run() {
      getRun().run();
  }
  

  }

And attempting to perform a partial mock on the class to isolate in the above example the run() method from the getRun() method, and example test would be:

@Test
public void testMe(final @Injectable Runnable mockedRunnable) {
    final MyClass instance = new MyClass(mockedRunnable);
    new Expectations(instance) {
        {
            instance.getRun();
            result = new Runnable() {
                public void run() {
                    System.out.print("Expectation runnable");
                }
            };
        }
    };

    instance.run();
}

One gets: java.lang.IllegalArgumentException: Already mocked: interface java.lang.Runnable
Removing the extends Runnable on the class solves the error, but makes the delegate useless.

Any ideas?

[rliesenfeld]

It's a bug; should be fixed by the time the next release is out.

[oazmon]

Need any help?