assertTrue(((Factory)sig).interceptor() == TEST_INTERCEPTOR);
assertTrue(((Factory)sig).getCallback(Callbacks.INTERCEPT) == TEST_INTERCEPTOR);
    public void testSignature() throws Throwable {        Signature sig = (Signature)Enhancer.enhance(Signature.class, TEST_INTERCEPTOR);        assertTrue(((Factory)sig).interceptor() == TEST_INTERCEPTOR);        assertTrue(sig.interceptor() == 42);    }