124 lines
4.3 KiB
Go
124 lines
4.3 KiB
Go
/*
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Copyright 2021 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 fieldmanager_test
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import (
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"context"
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"reflect"
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"testing"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apiserver/pkg/admission"
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"k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager"
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"sigs.k8s.io/structured-merge-diff/v4/fieldpath"
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)
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func TestAdmission(t *testing.T) {
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wrap := &mockAdmissionController{}
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ac := fieldmanager.NewManagedFieldsValidatingAdmissionController(wrap)
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now := metav1.Now()
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validFieldsV1 := metav1.FieldsV1{}
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var err error
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validFieldsV1.Raw, err = fieldpath.NewSet(fieldpath.MakePathOrDie("metadata", "labels", "test-label")).ToJSON()
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if err != nil {
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t.Fatal(err)
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}
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validManagedFieldsEntry := metav1.ManagedFieldsEntry{
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APIVersion: "v1",
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Operation: metav1.ManagedFieldsOperationApply,
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Time: &now,
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Manager: "test",
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FieldsType: "FieldsV1",
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FieldsV1: &validFieldsV1,
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}
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managedFieldsMutators := map[string]func(in metav1.ManagedFieldsEntry) (out metav1.ManagedFieldsEntry, shouldReset bool){
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"invalid APIVersion": func(managedFields metav1.ManagedFieldsEntry) (metav1.ManagedFieldsEntry, bool) {
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managedFields.APIVersion = ""
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return managedFields, true
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},
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"invalid Operation": func(managedFields metav1.ManagedFieldsEntry) (metav1.ManagedFieldsEntry, bool) {
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managedFields.Operation = "invalid operation"
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return managedFields, true
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},
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"invalid fieldsType": func(managedFields metav1.ManagedFieldsEntry) (metav1.ManagedFieldsEntry, bool) {
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managedFields.FieldsType = "invalid fieldsType"
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return managedFields, true
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},
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"invalid fieldsV1": func(managedFields metav1.ManagedFieldsEntry) (metav1.ManagedFieldsEntry, bool) {
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managedFields.FieldsV1 = &metav1.FieldsV1{Raw: []byte("{invalid}")}
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return managedFields, true
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},
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"invalid manager": func(managedFields metav1.ManagedFieldsEntry) (metav1.ManagedFieldsEntry, bool) {
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managedFields.Manager = ""
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return managedFields, false
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},
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}
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for name, mutate := range managedFieldsMutators {
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t.Run(name, func(t *testing.T) {
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mutated, shouldReset := mutate(validManagedFieldsEntry)
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validEntries := []metav1.ManagedFieldsEntry{validManagedFieldsEntry}
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mutatedEntries := []metav1.ManagedFieldsEntry{mutated}
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obj := &v1.ConfigMap{}
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obj.SetManagedFields(validEntries)
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wrap.admit = replaceManagedFields(mutatedEntries)
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attrs := admission.NewAttributesRecord(obj, obj, schema.GroupVersionKind{}, "default", "", schema.GroupVersionResource{}, "", admission.Update, nil, false, nil)
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if err := ac.(admission.MutationInterface).Admit(context.TODO(), attrs, nil); err != nil {
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t.Fatal(err)
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}
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if shouldReset && !reflect.DeepEqual(obj.GetManagedFields(), validEntries) {
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t.Fatalf("expected: \n%v\ngot:\n%v", validEntries, obj.GetManagedFields())
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}
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if !shouldReset && reflect.DeepEqual(obj.GetManagedFields(), validEntries) {
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t.Fatalf("expected: \n%v\ngot:\n%v", mutatedEntries, obj.GetManagedFields())
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}
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})
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}
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}
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func replaceManagedFields(with []metav1.ManagedFieldsEntry) func(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces) error {
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return func(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces) error {
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objectMeta, err := meta.Accessor(a.GetObject())
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if err != nil {
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return err
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}
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objectMeta.SetManagedFields(with)
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return nil
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}
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}
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type mockAdmissionController struct {
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admit func(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces) error
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}
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func (c *mockAdmissionController) Handles(operation admission.Operation) bool {
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return true
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}
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func (c *mockAdmissionController) Admit(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces) error {
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return c.admit(ctx, a, o)
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}
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