@Override
              public int hashCode() {
                return runnable.hashCode();
              }
            };
          }
        });
  }

  public void testFailsToForwardEquals() {
    tester.includingEquals();
    assertFailure(
        Runnable.class,
        new Function<Runnable, Runnable>() {
          @Override
          public Runnable apply(final Runnable runnable) {