}

// getVolumeDevicePluginsDir returns the full path to the directory under which plugin
// directories are created.  Plugins can use these directories for data that
// they need to persist.  Plugins should create subdirectories under this named
// after their own names.
func (kl *Kubelet) getVolumeDevicePluginsDir() string {

	assert.Equal(t, exp, got)

	got = kubelet.getPodPluginDir("abc123", "foobar")
	exp = filepath.Join(root, "pods/abc123/plugins/foobar")
	assert.Equal(t, exp, got)

	got = kubelet.getVolumeDevicePluginsDir()
	exp = filepath.Join(root, "plugins")
	assert.Equal(t, exp, got)

	got = kubelet.getVolumeDevicePluginDir("foobar")
	exp = filepath.Join(root, "plugins", "foobar", "volumeDevices")
	assert.Equal(t, exp, got)