995135973d
In order to avoid a dependency cycle between component-base and client-go, client-go maintains parallel definitions of component-base's feature types and constants. Passing kube's default feature gate instance to client-go requires an adapter.
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
/*
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Copyright 2024 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 features
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import (
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"testing"
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clientfeatures "k8s.io/client-go/features"
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"k8s.io/component-base/featuregate"
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)
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func TestClientAdapterEnabled(t *testing.T) {
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fg := featuregate.NewFeatureGate()
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if err := fg.Add(map[featuregate.Feature]featuregate.FeatureSpec{
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"Foo": {Default: true},
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}); err != nil {
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t.Fatal(err)
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}
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a := &clientAdapter{fg}
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if !a.Enabled("Foo") {
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t.Error("expected Enabled(\"Foo\") to return true")
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}
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var r interface{}
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func() {
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defer func() {
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r = recover()
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}()
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a.Enabled("Bar")
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}()
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if r == nil {
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t.Error("expected Enabled(\"Bar\") to panic due to unknown feature name")
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}
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}
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func TestClientAdapterAdd(t *testing.T) {
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fg := featuregate.NewFeatureGate()
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a := &clientAdapter{fg}
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defaults := fg.GetAll()
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if err := a.Add(map[clientfeatures.Feature]clientfeatures.FeatureSpec{
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"FeatureAlpha": {PreRelease: clientfeatures.Alpha, Default: true},
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"FeatureBeta": {PreRelease: clientfeatures.Beta, Default: false},
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"FeatureGA": {PreRelease: clientfeatures.GA, Default: true, LockToDefault: true},
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"FeatureDeprecated": {PreRelease: clientfeatures.Deprecated, Default: false, LockToDefault: true},
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}); err != nil {
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t.Fatal(err)
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}
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all := fg.GetAll()
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allexpected := map[featuregate.Feature]featuregate.FeatureSpec{
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"FeatureAlpha": {PreRelease: featuregate.Alpha, Default: true},
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"FeatureBeta": {PreRelease: featuregate.Beta, Default: false},
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"FeatureGA": {PreRelease: featuregate.GA, Default: true, LockToDefault: true},
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"FeatureDeprecated": {PreRelease: featuregate.Deprecated, Default: false, LockToDefault: true},
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}
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for name, spec := range defaults {
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allexpected[name] = spec
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}
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if len(all) != len(allexpected) {
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t.Errorf("expected %d registered features, got %d", len(allexpected), len(all))
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}
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for name, expected := range allexpected {
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actual, ok := all[name]
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if !ok {
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t.Errorf("expected feature %q not found", name)
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continue
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}
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if actual != expected {
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t.Errorf("expected feature %q spec %#v, got spec %#v", name, expected, actual)
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}
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}
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var r interface{}
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func() {
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defer func() {
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r = recover()
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}()
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_ = a.Add(map[clientfeatures.Feature]clientfeatures.FeatureSpec{
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"FeatureAlpha": {PreRelease: "foobar"},
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})
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}()
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if r == nil {
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t.Error("expected panic when adding feature with unknown prerelease")
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}
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}
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