kubernetes/pkg/api/testing/validation_test.go
Yongrui Lin 4dabaebe45 api/testing: auto-discover declarative-validation GVKs in fuzz test
TestVersionedValidationByFuzzing swept a hand-maintained list of
group/versions that had a typo (network.k8s.io) and omitted several
groups (apps, policy, rbac, flowcontrol, scheduling). Replace it with a
sweep of the scheme for served GVKs that have declarative validation,
so new group/versions are covered automatically.

Skip extensions/v1beta1 centrally in VerifyVersionedValidationEquivalence
instead of via the per-call WithSkipGroupVersions option: it opts out of
declarative validation but shares an internal type with versions that do
not. Any other version missing declarative validation now fails the sweep
rather than being silently skipped.
2026-07-01 17:07:29 +00:00

101 lines
3.4 KiB
Go

/*
Copyright 2025 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package testing
import (
"math/rand"
"sort"
"testing"
"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
"k8s.io/apimachinery/pkg/api/apitesting/roundtrip"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/kubernetes/pkg/api/legacyscheme"
nodevalidation "k8s.io/kubernetes/pkg/apis/node/validation"
resourcevalidation "k8s.io/kubernetes/pkg/apis/resource/validation"
)
func TestVersionedValidationByFuzzing(t *testing.T) {
// Discover every served GroupVersionKind that has declarative validation, so
// new group/versions are covered automatically without hand maintenance.
var gvks []schema.GroupVersionKind
for gvk := range legacyscheme.Scheme.AllKnownTypes() {
if gvk.Version == runtime.APIVersionInternal {
continue
}
obj, err := legacyscheme.Scheme.New(gvk)
if err != nil {
continue
}
if !legacyscheme.Scheme.HasValidationFunc(obj) {
continue
}
gvks = append(gvks, gvk)
}
sort.Slice(gvks, func(i, j int) bool { return gvks[i].String() < gvks[j].String() })
// subresourceOnlyKinds maps a Kind to the subresource it must be validated as
// (e.g. Scale), since it has no root-level validation. Keyed by Kind because
// the same Kind is registered under several groups (autoscaling, apps). Other
// kinds default to the root resource (""), whose validation covers their
// subresources too.
subresourceOnlyKinds := map[string]string{
"Scale": "scale",
}
fuzzIters := *roundtrip.FuzzIters / 10 // TODO: Find a better way to manage test running time
f := fuzzer.FuzzerFor(FuzzerFuncs, rand.NewSource(rand.Int63()), legacyscheme.Codecs)
for _, gvk := range gvks {
t.Run(gvk.String(), func(t *testing.T) {
for range fuzzIters {
obj, err := legacyscheme.Scheme.New(gvk)
if err != nil {
t.Fatalf("could not create a %v: %s", gvk.Kind, err)
}
subresource := ""
if specific, ok := subresourceOnlyKinds[gvk.Kind]; ok {
subresource = specific
}
var opts []ValidationTestConfig
// TODO(API group level configuration): Consider configuring normalization rules at the
// API group level to avoid potential collisions when multiple rule sets are combined.
// This would allow each API group to register its own normalization rules independently.
allRules := append([]field.NormalizationRule{}, resourcevalidation.ResourceNormalizationRules...)
allRules = append(allRules, nodevalidation.NodeNormalizationRules...)
opts = append(opts, WithNormalizationRules(allRules...), WithFuzzer(f))
if subresource != "" {
opts = append(opts, WithSubResources(subresource))
}
VerifyVersionedValidationEquivalence(t, obj, nil, opts...)
old, err := legacyscheme.Scheme.New(gvk)
if err != nil {
t.Fatalf("could not create a %v: %s", gvk.Kind, err)
}
VerifyVersionedValidationEquivalence(t, obj, old, opts...)
}
})
}
}