t.Fatal(err)
				}
			}
			data, err := loadVolumeData(dataDir, volDataFileName)
			if err != nil {
				t.Fatal(err)
			}
			if data[volDataKey.specVolID] != csiMounter.spec.Name() {
				t.Error("volume data file unexpected specVolID:", data[volDataKey.specVolID])
			}
			if data[volDataKey.volHandle] != csiMounter.volumeID {
				t.Error("volume data file unexpected volHandle:", data[volDataKey.volHandle])
			}