mirror of
https://github.com/k3s-io/kubernetes.git
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111 lines
4.1 KiB
Go
111 lines
4.1 KiB
Go
/*
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Copyright 2018 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 podsecuritypolicy
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import (
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"fmt"
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"reflect"
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"testing"
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"github.com/google/go-cmp/cmp"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/apis/policy"
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"k8s.io/kubernetes/pkg/features"
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)
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func TestDropAllowedProcMountTypes(t *testing.T) {
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allowedProcMountTypes := []api.ProcMountType{api.UnmaskedProcMount}
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scWithoutAllowedProcMountTypes := func() *policy.PodSecurityPolicySpec {
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return &policy.PodSecurityPolicySpec{}
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}
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scWithAllowedProcMountTypes := func() *policy.PodSecurityPolicySpec {
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return &policy.PodSecurityPolicySpec{
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AllowedProcMountTypes: allowedProcMountTypes,
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}
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}
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scInfo := []struct {
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description string
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hasAllowedProcMountTypes bool
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sc func() *policy.PodSecurityPolicySpec
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}{
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{
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description: "PodSecurityPolicySpec Without AllowedProcMountTypes",
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hasAllowedProcMountTypes: false,
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sc: scWithoutAllowedProcMountTypes,
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},
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{
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description: "PodSecurityPolicySpec With AllowedProcMountTypes",
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hasAllowedProcMountTypes: true,
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sc: scWithAllowedProcMountTypes,
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},
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{
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description: "is nil",
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hasAllowedProcMountTypes: false,
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sc: func() *policy.PodSecurityPolicySpec { return nil },
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},
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}
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for _, enabled := range []bool{true, false} {
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for _, oldPSPSpecInfo := range scInfo {
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for _, newPSPSpecInfo := range scInfo {
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oldPSPSpecHasAllowedProcMountTypes, oldPSPSpec := oldPSPSpecInfo.hasAllowedProcMountTypes, oldPSPSpecInfo.sc()
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newPSPSpecHasAllowedProcMountTypes, newPSPSpec := newPSPSpecInfo.hasAllowedProcMountTypes, newPSPSpecInfo.sc()
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if newPSPSpec == nil {
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continue
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}
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t.Run(fmt.Sprintf("feature enabled=%v, old PodSecurityPolicySpec %v, new PodSecurityPolicySpec %v", enabled, oldPSPSpecInfo.description, newPSPSpecInfo.description), func(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ProcMountType, enabled)()
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DropDisabledFields(newPSPSpec, oldPSPSpec)
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// old PodSecurityPolicySpec should never be changed
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if !reflect.DeepEqual(oldPSPSpec, oldPSPSpecInfo.sc()) {
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t.Errorf("old PodSecurityPolicySpec changed: %v", cmp.Diff(oldPSPSpec, oldPSPSpecInfo.sc()))
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}
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switch {
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case enabled || oldPSPSpecHasAllowedProcMountTypes:
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// new PodSecurityPolicySpec should not be changed if the feature is enabled, or if the old PodSecurityPolicySpec had AllowedProcMountTypes
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if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
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t.Errorf("new PodSecurityPolicySpec changed: %v", cmp.Diff(newPSPSpec, newPSPSpecInfo.sc()))
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}
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case newPSPSpecHasAllowedProcMountTypes:
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// new PodSecurityPolicySpec should be changed
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if reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
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t.Errorf("new PodSecurityPolicySpec was not changed")
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}
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// new PodSecurityPolicySpec should not have AllowedProcMountTypes
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if !reflect.DeepEqual(newPSPSpec, scWithoutAllowedProcMountTypes()) {
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t.Errorf("new PodSecurityPolicySpec had PodSecurityPolicySpecAllowedProcMountTypes: %v", cmp.Diff(newPSPSpec, scWithoutAllowedProcMountTypes()))
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}
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default:
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// new PodSecurityPolicySpec should not need to be changed
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if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
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t.Errorf("new PodSecurityPolicySpec changed: %v", cmp.Diff(newPSPSpec, newPSPSpecInfo.sc()))
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}
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}
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})
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}
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}
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}
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}
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