if err != nil {
		t.Fatalf("failed to make a new Unmounter: %v", err)
	}

	csiUnmounter := unmounter.(*csiMountMgr)
	csiUnmounter.csiClient = setupClient(t, true)
	err = csiUnmounter.TearDownAt(dir)
	if err != nil {
		t.Fatal(err)
	}

	// ensure csi client call
	pubs := csiUnmounter.csiClient.(*fakeCsiDriverClient).nodeClient.GetNodePublishedVolumes()

}

func (fv *FakeVolume) TearDown() error {
	fv.Lock()
	defer fv.Unlock()
	fv.TearDownCallCount++
	return fv.TearDownAt(fv.getPath())
}

func (fv *FakeVolume) GetTearDownCallCount() int {
	fv.RLock()
	defer fv.RUnlock()
	return fv.TearDownCallCount
}

func (fv *FakeVolume) TearDownAt(dir string) error {
	return os.RemoveAll(dir)
}

// Block volume support