TestGuard guard = new TestGuard(true);
    thread1.callAndAssertReturns(enter());
    thread1.callAndAssertReturns(waitFor(), guard);
  }

  public final void testWaitFor_initiallyFalse() throws Exception {
    TestGuard guard = new TestGuard(false);
    thread1.callAndAssertReturns(enter());
    thread1.callAndAssertWaits(waitFor(), guard);
    monitor.enter();
    guard.setSatisfied(true);