pr := newTestConditionalProgressRequester(clock)
	stopCh := make(chan struct{})
	go pr.Run(stopCh)
	var wantRequestsSent int32
	var requestsSent int32

	logger.Info("Wait for ticker to be created")
	for !clock.HasWaiters() {
		time.Sleep(pollPeriod)
	}

	logger.Info("No progress requests if no-one is waiting")
	clock.Step(progressRequestPeriod * 2)

    Monitor monitor1 = new Monitor();
    Monitor monitor2 = new Monitor();
    FlagGuard guard = new FlagGuard(monitor2);
    assertThrows(IllegalMonitorStateException.class, () -> monitor1.hasWaiters(guard));
  }

  public void testNullMonitorInGuardConstructorThrowsNPE() {
    assertThrows(NullPointerException.class, () -> new FlagGuard(null));
  }

  public void testIsFair() {

    Monitor monitor1 = new Monitor();
    Monitor monitor2 = new Monitor();
    FlagGuard guard = new FlagGuard(monitor2);
    assertThrows(IllegalMonitorStateException.class, () -> monitor1.hasWaiters(guard));
  }

  public void testNullMonitorInGuardConstructorThrowsNPE() {
    assertThrows(NullPointerException.class, () -> new FlagGuard(null));
  }

  public void testIsFair() {