rootdir := filepath.Join(dir, "vol")
		err = os.Mkdir(rootdir, 0755)
		if err != nil {
			t.Errorf("Unexpected error trying to create temp root directory: %v", err)
			return
		}

		dirs, err := getNestedMountpoints(test.volname, rootdir, test.pod)
		if test.err {
			if err == nil {
				t.Errorf("%v: expected error, got nil", test.name)
			}
			continue
		} else {
			if err != nil {