mirror of https://github.com/k3s-io/k3s
146 lines
3.3 KiB
Go
146 lines
3.3 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 main
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import (
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"encoding/json"
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"reflect"
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"testing"
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jsonpatch "github.com/evanphx/json-patch"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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)
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func TestPatches(t *testing.T) {
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testCases := []struct {
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patch string
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initial interface{}
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expected interface{}
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toTest interface{}
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}{
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{
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patch: configMapPatch1,
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initial: corev1.ConfigMap{
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Data: map[string]string{
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"mutation-start": "yes",
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},
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},
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expected: &corev1.ConfigMap{
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Data: map[string]string{
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"mutation-start": "yes",
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"mutation-stage-1": "yes",
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},
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},
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},
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{
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patch: configMapPatch2,
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initial: corev1.ConfigMap{
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Data: map[string]string{
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"mutation-start": "yes",
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},
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},
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expected: &corev1.ConfigMap{
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Data: map[string]string{
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"mutation-start": "yes",
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"mutation-stage-2": "yes",
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},
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},
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},
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{
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patch: podsInitContainerPatch,
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initial: corev1.Pod{
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{},
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},
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},
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expected: &corev1.Pod{
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Spec: corev1.PodSpec{
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InitContainers: []corev1.Container{
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{
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Image: "webhook-added-image",
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Name: "webhook-added-init-container",
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Resources: corev1.ResourceRequirements{},
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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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for _, testcase := range testCases {
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objJS, err := json.Marshal(testcase.initial)
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if err != nil {
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t.Fatal(err)
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}
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patchObj, err := jsonpatch.DecodePatch([]byte(testcase.patch))
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if err != nil {
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t.Fatal(err)
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}
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patchedJS, err := patchObj.Apply(objJS)
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if err != nil {
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t.Fatal(err)
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}
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objType := reflect.TypeOf(testcase.initial)
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objTest := reflect.New(objType).Interface()
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err = json.Unmarshal(patchedJS, objTest)
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(objTest, testcase.expected) {
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t.Errorf("\nexpected %#v\n, got %#v", testcase.expected, objTest)
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}
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}
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}
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func TestJSONPatchForUnstructured(t *testing.T) {
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cr := &unstructured.Unstructured{
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Object: map[string]interface{}{
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"kind": "Something",
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"apiVersion": "somegroup/v1",
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"data": map[string]interface{}{
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"mutation-start": "yes",
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},
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},
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}
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crJS, err := json.Marshal(cr)
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if err != nil {
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t.Fatal(err)
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}
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patchObj, err := jsonpatch.DecodePatch([]byte(configMapPatch1))
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if err != nil {
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t.Fatal(err)
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}
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patchedJS, err := patchObj.Apply(crJS)
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patchedObj := unstructured.Unstructured{}
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err = json.Unmarshal(patchedJS, &patchedObj)
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if err != nil {
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t.Fatal(err)
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}
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expectedData := map[string]interface{}{
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"mutation-start": "yes",
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"mutation-stage-1": "yes",
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}
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if !reflect.DeepEqual(patchedObj.Object["data"], expectedData) {
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t.Errorf("\nexpected %#v\n, got %#v", expectedData, patchedObj.Object["data"])
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}
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}
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