GetFinalizers() []string
	SetFinalizers(finalizers []string)
	GetOwnerReferences() []OwnerReference
	SetOwnerReferences([]OwnerReference)
	GetManagedFields() []ManagedFieldsEntry
	SetManagedFields(managedFields []ManagedFieldsEntry)
}

// ListMetaAccessor retrieves the list interface from an object
type ListMetaAccessor interface {
	GetListMeta() ListInterface
}

	if managedFields == nil {
		RemoveNestedField(u.Object, "metadata", "managedFields")
		return
	}
	items := []interface{}{}
	for _, managedFieldsEntry := range managedFields {
		out, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&managedFieldsEntry)
		if err != nil {
			utilruntime.HandleError(fmt.Errorf("unable to set managedFields for object: %v", err))
			return
		}

	objManagedFields := accessor.GetManagedFields()
	for _, mf := range objManagedFields {
		if mf.Manager == fieldManager && mf.Operation == metav1.ManagedFieldsOperationApply && mf.Subresource == subresource {
			return mf, true
		}
	}
	return metav1.ManagedFieldsEntry{}, false
}

		t.Run(fmt.Sprintf("%#v", test), func(t *testing.T) {
			errs := ValidateManagedFields([]metav1.ManagedFieldsEntry{test}, field.NewPath("managedFields"))
			if len(errs) == 0 {
				t.Errorf("Validation should have failed")
			}
		})
	}
}

func TestValidateMangedFieldsValid(t *testing.T) {
	tests := []metav1.ManagedFieldsEntry{{
		Operation:  metav1.ManagedFieldsOperationUpdate,
		APIVersion: "v1",

				ObjectMeta: metav1.ObjectMeta{
					Namespace:   "foo",
					Name:        "bar",
					Labels:      map[string]string{"a": "b"},
					Annotations: map[string]string{"c": "d"},
					ManagedFields: []metav1.ManagedFieldsEntry{
						{
							Manager: "whatever",
						},
					},
				},
			},
			want: &corev1.Pod{
				ObjectMeta: metav1.ObjectMeta{
					Namespace:   "foo",
					Name:        "bar",

}

func (f *buildManagerInfoManager) buildManagerInfo(prefix string, operation metav1.ManagedFieldsOperationType) (string, error) {
	managerInfo := metav1.ManagedFieldsEntry{
		Manager:     prefix,
		Operation:   operation,
		APIVersion:  f.groupVersion.String(),
		Subresource: f.subresource,
	}
	if managerInfo.Manager == "" {
		managerInfo.Manager = "unknown"
	}

		}
	}
	return fmt.Sprintf("Apply failed with %d conflicts: %s", len(conflicts), strings.Join(messages, "\n"))
}

func printManager(manager string) string {
	encodedManager := &metav1.ManagedFieldsEntry{}
	if err := json.Unmarshal([]byte(manager), encodedManager); err != nil {
		return fmt.Sprintf("%q", manager)
	}
	managerStr := fmt.Sprintf("%q", encodedManager.Manager)
	if encodedManager.Subresource != "" {

// the list has one empty item.
func isResetManagedFields(managedFields []metav1.ManagedFieldsEntry) bool {
	if len(managedFields) == 0 {
		return managedFields != nil
	}

	if len(managedFields) == 1 {
		return reflect.DeepEqual(managedFields[0], metav1.ManagedFieldsEntry{})
	}

	return false
}

// Apply is used when server-side apply is called, as it merges the

	}
	return internal.NewDefaultFieldManager(f, typeConverter, objectConverter, objectCreater, kind, subresource), nil
}

func ValidateManagedFields(encodedManagedFields []metav1.ManagedFieldsEntry) error {
	_, err := internal.DecodeManagedFields(encodedManagedFields)
	return err

	if err != nil {
		return object, managed, err
	}

	// If the current operation took any fields from anything, it means the object changed,
	// so update the timestamp of the managedFieldsEntry and merge with any previous updates from the same manager
	if vs, ok := managed.Fields()[self]; ok {
		delete(managed.Fields(), self)

		if previous, ok := managed.Fields()[manager]; ok {