specJSON(plugin, spec, nil)),
	)

	a, _ := plugin.NewAttacher()
	a.MountDevice(spec, "/dev/sdx", rootDir+"/mount-dir", volume.DeviceMounterArgs{})
}

func TestIsVolumeAttached(tt *testing.T) {
	t := harness.For(tt)
	defer t.Close()

	spec := fakeVolumeSpec()

	plugin, _ := testPlugin(t)
	plugin.runner = fakeRunner(