var allErrs field.ErrorList
	driverNames := sets.New[string]()
	for i, request := range requests {
		idxPath := fldPath.Index(i)
		driverName := request.DriverName
		allErrs = append(allErrs, validateResourceDriverName(driverName, idxPath.Child("driverName"))...)
		if driverNames.Has(driverName) {
			allErrs = append(allErrs, field.Duplicate(idxPath.Child("driverName"), driverName))
		} else {
			driverNames.Insert(driverName)

				claim.Status.DriverName = "valid"
				return claim
			},
		},
		"invalid-add-allocation": {
			wantFailures: field.ErrorList{field.Required(field.NewPath("status", "driverName"), "must be specified when `allocation` is set")},
			oldClaim:     validClaim,
			update: func(claim *resource.ResourceClaim) *resource.ResourceClaim {
				// DriverName must also get set here!

	"k8s.io/kubernetes/pkg/apis/core"
	"k8s.io/kubernetes/pkg/apis/resource"
	"k8s.io/utils/pointer"
)

func testClass(name, driverName string) *resource.ResourceClass {
	return &resource.ResourceClass{
		ObjectMeta: metav1.ObjectMeta{
			Name: name,
		},
		DriverName: driverName,
	}
}

func TestValidateClass(t *testing.T) {
	goodName := "foo"
	now := metav1.Now()

	}

	// It's a CSI volume
	driverName, err := csi.GetCSIDriverName(spec)
	if err != nil {
		// In theory this is unreachable - such volume would not pass validation.
		klog.V(4).ErrorS(err, "failed to get CSI driver name from volume spec")
		driverName = "unknown"
	}
	// `/` is used to separate plugin + CSI driver in util.GetUniqueVolumeName() too
	return pluginName + "/" + driverName
}

		{Name: "Name", Type: "string", Format: "name", Description: metav1.ObjectMeta{}.SwaggerDoc()["name"]},
		{Name: "DriverName", Type: "string", Description: storagev1alpha1.VolumeAttributesClass{}.SwaggerDoc()["driverName"]},
		{Name: "Age", Type: "string", Description: metav1.ObjectMeta{}.SwaggerDoc()["creationTimestamp"]},
	}

- DRA: client-side validation of a ResourceHandle would have accepted a missing DriverName, whereas server-side validation then would have raised an error. ([#124075](https://github.com/kubernetes/kubernetes/pull/124075), [@pohly](https://github.com/pohly)) [SIG Apps]

				},
				DriverName: "fake",
			},
			expected: []metav1.TableRow{{Cells: []interface{}{"vac1", "fake", "0s"}}},
		},
		{
			vac: storage.VolumeAttributesClass{
				ObjectMeta: metav1.ObjectMeta{
					Name:              "vac2",
					CreationTimestamp: metav1.Time{Time: time.Now().Add(-3e11)},
				},
				DriverName: "fake",
				Parameters: map[string]string{

				Type:        []string{"object"},
				Properties: map[string]spec.Schema{
					"driverName": {
						SchemaProps: spec.SchemaProps{
							Description: "DriverName specifies the name of the resource driver whose kubelet plugin should be invoked to process this ResourceHandle's data once it lands on a node. This may differ from the DriverName set in ResourceClaimStatus this ResourceHandle is embedded in.",
							Default:     "",

        },
        "driverName": {
          "description": "DriverName specifies the name of the resource driver whose kubelet plugin should be invoked to process this ResourceHandle's data once it lands on a node. This may differ from the DriverName set in ResourceClaimStatus this ResourceHandle is embedded in.",
          "type": "string"
        },
        "structuredData": {