assert.NoError(t, volumetest.VerifyTearDownCallCount(
		1 /* expectedTearDownCallCount */, testKubelet.volumePlugin))

	// Verify volumes detached and no longer reported as in use
	assert.NoError(t, waitForVolumeDetach(v1.UniqueVolumeName("fake/fake-device"), kubelet.volumeManager))
	assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")

		},
	)

	if err != nil {
		return fmt.Errorf(
			"Expected volumes to be unmounted. But some volumes are still mounted: %#v", podVolumes)
	}

	return nil
}

func waitForVolumeDetach(
	volumeName v1.UniqueVolumeName,
	volumeManager kubeletvolume.VolumeManager) error {
	attachedVolumes := []v1.UniqueVolumeName{}
	err := retryWithExponentialBackOff(
		time.Duration(50*time.Millisecond),