func TestSpecSourceConverters(t *testing.T) {
	v := &v1.Volume{
		Name:         "foo",
		VolumeSource: v1.VolumeSource{EmptyDir: &v1.EmptyDirVolumeSource{}},
	}

	converted := NewSpecFromVolume(v)
	if converted.Volume.EmptyDir == nil {
		t.Errorf("Unexpected nil EmptyDir: %#v", converted)
	}
	if v.Name != converted.Name() {
		t.Errorf("Expected %v but got %v", converted.Name(), v.Name)
	}

	nfsVolume := &v1.Volume{
		Name: volumeName,
		VolumeSource: v1.VolumeSource{
			NFS: &v1.NFSVolumeSource{
				Path: volumeName,
			},
		},
	}
	return volume.ReconstructedVolume{
		Spec: volume.NewSpecFromVolume(nfsVolume),
	}, nil
}

// NFS volumes represent a bare host file or directory mount of an NFS export.
type nfs struct {
	volName string
	pod     *v1.Pod
	mounter mount.Interface

		Name: volName,
		VolumeSource: v1.VolumeSource{
			Secret: &v1.SecretVolumeSource{
				SecretName: volName,
			},
		},
	}
	return volume.ReconstructedVolume{
		Spec: volume.NewSpecFromVolume(secretVolume),
	}, nil
}

type secretVolume struct {
	volName string
	podUID  types.UID
	plugin  *secretPlugin
	mounter mount.Interface
	volume.MetricsProvider
}

	gitVolume := &v1.Volume{
		Name: volumeName,
		VolumeSource: v1.VolumeSource{
			GitRepo: &v1.GitRepoVolumeSource{},
		},
	}
	return volume.ReconstructedVolume{
		Spec: volume.NewSpecFromVolume(gitVolume),
	}, nil
}

// gitRepo volumes are directories which are pre-filled from a git repository.
// These do not persist beyond the lifetime of a pod.
type gitRepoVolume struct {
	volName string

		Name: volumeName,
		VolumeSource: api.VolumeSource{
			FlexVolume: &api.FlexVolumeSource{
				Driver: plugin.driverName,
			},
		},
	}
	return volume.ReconstructedVolume{
		Spec: volume.NewSpecFromVolume(flexVolume),
	}, nil
}

func (plugin *flexVolumePlugin) SupportsMountOption() bool {
	return false
}

// Mark the given commands as unsupported.