testing: skip unserved extensions/v1beta1 in validation equivalence sweep

Add WithSkipGroupVersions and apply it to the NetworkPolicy and Scale tests,
whose internal types also register under the now-unvalidated extensions/v1beta1.

pkg/api/testing/validation.go

@@ -29,6 +29,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	runtimetest "k8s.io/apimachinery/pkg/runtime/testing"
 	"k8s.io/apimachinery/pkg/test/coverage"
+	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
 	"k8s.io/apiserver/pkg/features"
@@ -55,6 +56,12 @@ func VerifyVersionedValidationEquivalence(t *testing.T, obj, old runtime.Object,
 	// Accumulate errors from all versioned validation, per version.
 	all := map[string]field.ErrorList{}
 	accumulate := func(t *testing.T, gv string, errs field.ErrorList) {
+		// Skip versions explicitly excluded from the equivalence sweep (e.g. a
+		// deprecated, unserved group whose types are intentionally not validated
+		// declaratively).
+		if opts.SkipGroupVersions.Has(gv) {
+			return
+		}
 		// If normalization rules are provided, apply them to the field paths of generated errors.
 		// This allows comparing errors between API versions that have structural differences
 		// (e.g. flattened vs nested fields).
@@ -222,6 +229,13 @@ type validationOption struct {
 
 	// Fuzzer is the fuzzer to use for generating test objects.
 	Fuzzer *randfill.Filler
+
+	// SkipGroupVersions lists "group/version" strings to exclude from the
+	// versioned validation equivalence sweep. This is for kinds whose internal
+	// type is registered under a deprecated, unserved group (e.g. a workload
+	// type that also exists in extensions/v1beta1) for which declarative
+	// validation is intentionally not generated.
+	SkipGroupVersions sets.Set[string]
 }
 
 func WithSubResources(subResources ...string) ValidationTestConfig {
@@ -248,6 +262,16 @@ func WithFuzzer(fuzzer *randfill.Filler) ValidationTestConfig {
 	}
 }
 
+// WithSkipGroupVersions excludes the given "group/version" strings from the
+// versioned validation equivalence sweep. Use it for kinds whose internal type
+// is also registered under a deprecated, unserved group (e.g. extensions/v1beta1)
+// for which declarative validation is intentionally not generated.
+func WithSkipGroupVersions(groupVersions ...string) ValidationTestConfig {
+	return func(o *validationOption) {
+		o.SkipGroupVersions = sets.New(groupVersions...)
+	}
+}
+
 // VerifyValidationEquivalence provides a helper for testing the migration from
 // hand-written imperative validation to declarative validation. It ensures that
 // the validation logic remains consistent across enforcement modes.

test/declarative_validation/apps/scale/declarative_validation_test.go

@@ -61,7 +61,7 @@ func TestDeclarativeValidateUpdate(t *testing.T) {
 				t.Run(k, func(t *testing.T) {
 					tc.old.ResourceVersion = "1"
 					tc.update.ResourceVersion = "1"
-					apitesting.VerifyUpdateValidationEquivalenceFunc(t, ctx, &tc.update, &tc.old, validateScale, tc.expectedErrs, apitesting.WithSubResources("scale"))
+					apitesting.VerifyUpdateValidationEquivalenceFunc(t, ctx, &tc.update, &tc.old, validateScale, tc.expectedErrs, apitesting.WithSubResources("scale"), apitesting.WithSkipGroupVersions("extensions/v1beta1"))
 				})
 			}
 		})

test/declarative_validation/autoscaling/scale/declarative_validation_test.go

@@ -61,7 +61,7 @@ func TestDeclarativeValidateUpdate(t *testing.T) {
 				t.Run(k, func(t *testing.T) {
 					tc.old.ResourceVersion = "1"
 					tc.update.ResourceVersion = "1"
-					apitesting.VerifyUpdateValidationEquivalenceFunc(t, ctx, &tc.update, &tc.old, validateScale, tc.expectedErrs, apitesting.WithSubResources("scale"))
+					apitesting.VerifyUpdateValidationEquivalenceFunc(t, ctx, &tc.update, &tc.old, validateScale, tc.expectedErrs, apitesting.WithSubResources("scale"), apitesting.WithSkipGroupVersions("extensions/v1beta1"))
 				})
 			}
 		})

test/declarative_validation/networking/networkpolicy/declarative_validation_test.go

@@ -80,6 +80,9 @@ func TestDeclarativeValidateIPBlockCIDR(t *testing.T) {
 						&tc.input,
 						registry.Strategy,
 						tc.expectedErrs,
+						// extensions/v1beta1 is unserved and no longer carries
+						// declarative validation; skip it in the version sweep.
+						apitesting.WithSkipGroupVersions("extensions/v1beta1"),
 					)
 				})
 			}
@@ -148,6 +151,9 @@ func TestDeclarativeValidateIPBlockCIDRUpdate(t *testing.T) {
 						&tc.oldObj,
 						registry.Strategy,
 						tc.expectedErrs,
+						// extensions/v1beta1 is unserved and no longer carries
+						// declarative validation; skip it in the version sweep.
+						apitesting.WithSkipGroupVersions("extensions/v1beta1"),
 					)
 				})
 			}