mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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1d365762a5
This makes a bold assumption: that the errors (count and basic content) will be the same across versions. If this turns out to be untrue, this may need to get more sophisticated. It should fail obviously when we hit that edge.
108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
/*
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Copyright 2025 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package testing
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import (
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"bytes"
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"sort"
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"strconv"
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"testing"
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k8sruntime "k8s.io/apimachinery/pkg/runtime"
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runtimetest "k8s.io/apimachinery/pkg/runtime/testing"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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)
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// VerifyVersionedValidationEquivalence tests that all versions of an API return equivalent validation errors.
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func VerifyVersionedValidationEquivalence(t *testing.T, obj, old k8sruntime.Object) {
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t.Helper()
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// Accumulate errors from all versioned validation, per version.
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all := map[string]field.ErrorList{}
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accumulate := func(t *testing.T, gv string, errs field.ErrorList) {
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all[gv] = errs
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}
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if old == nil {
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runtimetest.RunValidationForEachVersion(t, legacyscheme.Scheme, sets.Set[string]{}, obj, accumulate)
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} else {
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runtimetest.RunUpdateValidationForEachVersion(t, legacyscheme.Scheme, sets.Set[string]{}, obj, old, accumulate)
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}
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// Make a copy so we can modify it.
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other := map[string]field.ErrorList{}
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// Index for nicer output.
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keys := []string{}
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for k, v := range all {
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other[k] = v
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keys = append(keys, k)
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}
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sort.Strings(keys)
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// Compare each lhs to each rhs.
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for _, lk := range keys {
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lv := all[lk]
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// remove lk since to prevent comparison to itself and because this
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// iteration will compare it to any version it has not yet been
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// compared to. e.g. [1, 2, 3] vs. [1, 2, 3] yields:
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// 1 vs. 2
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// 1 vs. 3
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// 2 vs. 3
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delete(other, lk)
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// don't compare to ourself
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for _, rk := range keys {
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rv, found := other[rk]
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if !found {
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continue // done already
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}
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if len(lv) != len(rv) {
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t.Errorf("different error count (%d vs. %d)\n%s: %v\n%s: %v", len(lv), len(rv), lk, fmtErrs(lv), rk, fmtErrs(rv))
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continue
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}
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next := false
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for i := range lv {
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if l, r := lv[i], rv[i]; l.Type != r.Type || l.Detail != r.Detail {
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t.Errorf("different errors\n%s: %v\n%s: %v", lk, fmtErrs(lv), rk, fmtErrs(rv))
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next = true
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break
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}
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}
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if next {
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continue
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}
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}
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}
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}
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// helper for nicer output
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func fmtErrs(errs field.ErrorList) string {
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if len(errs) == 0 {
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return "<no errors>"
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}
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if len(errs) == 1 {
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return strconv.Quote(errs[0].Error())
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}
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buf := bytes.Buffer{}
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for _, e := range errs {
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buf.WriteString("\n")
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buf.WriteString(strconv.Quote(e.Error()))
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}
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return buf.String()
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}
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