podDir := kubelet.getPodDir("pod1uid")
				return os.MkdirAll(filepath.Join(podDir, "volumes/plugin/name"), 0750)
			},
			validateFunc: func(kubelet *Kubelet) error {
				podDir := kubelet.getPodDir("pod1uid")
				return validateDirNotExists(podDir)
			},
		},
		"pod-doesnot-exist-with-volume-subdir": {
			prepareFunc: func(kubelet *Kubelet) error {
				podDir := kubelet.getPodDir("pod1uid")

}

// This is not used by docker runtime.
func (f *FakeRuntimeHelper) GeneratePodHostNameAndDomain(pod *v1.Pod) (string, string, error) {
	return f.HostName, f.HostDomain, f.Err
}

func (f *FakeRuntimeHelper) GetPodDir(podUID kubetypes.UID) string {
	return "/poddir/" + string(podUID)
}

func (f *FakeRuntimeHelper) GetExtraSupplementalGroupsForPod(pod *v1.Pod) []int64 {
	return nil
}

	exp = filepath.Join(root, "plugins_registry")
	assert.Equal(t, exp, got)

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

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

	got = kubelet.getPodVolumesDir("abc123")
	exp = filepath.Join(root, "pods/abc123/volumes")
	assert.Equal(t, exp, got)