cases := map[string]struct {
		oldClass      *storage.VolumeAttributesClass
		newClass      *storage.VolumeAttributesClass
		shouldSucceed bool
	}{
		"invalid driverName update": {
			oldClass: &storage.VolumeAttributesClass{
				DriverName: "kubernetes.io/foo",
			},
			newClass: &storage.VolumeAttributesClass{
				DriverName: "kubernetes.io/bar",
			},
			shouldSucceed: false,