allErrs = append(allErrs, field.Invalid(fldPath.Child("namespace"), ref.Namespace, msg))
		}
	}
	return allErrs
}

// ValidateClass validates a ResourceClass.
func ValidateClass(resourceClass *resource.ResourceClass) field.ErrorList {
	allErrs := corevalidation.ValidateObjectMeta(&resourceClass.ObjectMeta, false, corevalidation.ValidateClassName, field.NewPath("metadata"))

					// Must not be empty.
				}
				return class
			}(),
		},
	}

	for name, scenario := range scenarios {
		t.Run(name, func(t *testing.T) {
			errs := ValidateClass(scenario.class)
			assert.Equal(t, scenario.wantFailures, errs)
		})
	}
}

func TestValidateClassUpdate(t *testing.T) {
	validClass := testClass("foo", "valid")

	scenarios := map[string]struct {