if e, a := item.valid, len(createErrs) == 0; e != a {
			t.Errorf("%v: expected %v, got %v: %v", item.Event.Name, e, a, createErrs)
		}
		updateErrs := ValidateEventUpdate(item.Event, &core.Event{}, v1.SchemeGroupVersion)
		if e, a := item.valid, len(updateErrs) == 0; e != a {
			t.Errorf("%v: expected %v, got %v: %v", item.Event.Name, e, a, updateErrs)
		}
	}
}

func (eventStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
	groupVersion := requestGroupVersion(ctx)
	event := obj.(*api.Event)
	oldEvent := old.(*api.Event)
	return validation.ValidateEventUpdate(event, oldEvent, groupVersion)
}

// WarningsOnUpdate returns warnings for the given update.
func (eventStrategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
	return nil
}

	}
	if event.Source.Component != "" || event.Source.Host != "" {
		allErrs = append(allErrs, field.Invalid(field.NewPath("source"), "", "needs to be unset"))
	}
	return allErrs
}

func ValidateEventUpdate(newEvent, oldEvent *core.Event, requestVersion schema.GroupVersion) field.ErrorList {
	// Make sure the new event always passes legacy validation.
	allErrs := legacyValidateEvent(newEvent, requestVersion)