mirror of
https://github.com/kubernetes/client-go.git
synced 2025-06-21 12:48:30 +00:00
410 lines
12 KiB
Go
410 lines
12 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 dynamic_test
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import (
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"bufio"
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"context"
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"encoding/json"
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"fmt"
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"net"
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"net/http"
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"net/http/httptest"
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"net/http/httputil"
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"net/url"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/dynamic"
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"k8s.io/client-go/rest"
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)
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func TestGoldenRequest(t *testing.T) {
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for _, tc := range []struct {
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name string
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do func(context.Context, dynamic.Interface) error
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}{
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{
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name: "create",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Create(
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ctx,
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&unstructured.Unstructured{Object: map[string]interface{}{
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"metadata": map[string]interface{}{"name": "mips"},
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}},
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metav1.CreateOptions{FieldValidation: "warn"},
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"fin",
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)
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return err
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},
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},
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{
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name: "update",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Update(
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ctx,
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&unstructured.Unstructured{Object: map[string]interface{}{
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"metadata": map[string]interface{}{"name": "mips"},
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}},
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metav1.UpdateOptions{FieldValidation: "warn"},
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"fin",
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)
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return err
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},
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},
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{
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name: "updatestatus",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").UpdateStatus(
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ctx,
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&unstructured.Unstructured{Object: map[string]interface{}{
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"metadata": map[string]interface{}{"name": "mips"},
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}},
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metav1.UpdateOptions{FieldValidation: "warn"},
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)
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return err
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},
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},
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{
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name: "delete",
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do: func(ctx context.Context, client dynamic.Interface) error {
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return client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Delete(
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ctx,
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"mips",
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metav1.DeleteOptions{DryRun: []string{metav1.DryRunAll}},
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"fin",
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)
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},
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},
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{
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name: "deletecollection",
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do: func(ctx context.Context, client dynamic.Interface) error {
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return client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").DeleteCollection(
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ctx,
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metav1.DeleteOptions{DryRun: []string{metav1.DryRunAll}},
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metav1.ListOptions{ResourceVersion: "42"},
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)
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},
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},
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{
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name: "get",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Get(
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ctx,
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"mips",
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metav1.GetOptions{ResourceVersion: "42"},
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"fin",
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)
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return err
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},
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},
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{
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name: "list",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").List(
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ctx,
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metav1.ListOptions{ResourceVersion: "42"},
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)
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return err
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},
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},
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{
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name: "watch",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Watch(
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ctx,
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metav1.ListOptions{ResourceVersion: "42"},
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)
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return err
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},
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},
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{
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name: "patch",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Patch(
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ctx,
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"mips",
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types.StrategicMergePatchType,
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[]byte("{\"foo\":\"bar\"}\n"),
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metav1.PatchOptions{FieldManager: "baz"},
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"fin",
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)
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return err
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},
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},
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{
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name: "apply",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").Apply(
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ctx,
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"mips",
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&unstructured.Unstructured{Object: map[string]interface{}{
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"metadata": map[string]interface{}{"name": "mips"},
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}},
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metav1.ApplyOptions{Force: true},
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"fin",
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)
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return err
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},
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},
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{
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name: "applystatus",
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do: func(ctx context.Context, client dynamic.Interface) error {
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_, err := client.Resource(schema.GroupVersionResource{Group: "flops", Version: "v1alpha1", Resource: "flips"}).Namespace("mops").ApplyStatus(
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ctx,
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"mips",
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&unstructured.Unstructured{Object: map[string]interface{}{
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"metadata": map[string]interface{}{"name": "mips"},
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}},
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metav1.ApplyOptions{Force: true},
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)
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return err
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},
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},
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} {
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t.Run(tc.name, func(t *testing.T) {
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handled := make(chan struct{})
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srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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defer close(handled)
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got, err := httputil.DumpRequest(r, true)
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if err != nil {
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t.Fatal(err)
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}
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path := filepath.Join("testdata", filepath.FromSlash(t.Name()))
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if os.Getenv("UPDATE_DYNAMIC_CLIENT_FIXTURES") == "true" {
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err := os.WriteFile(path, got, os.FileMode(0755))
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if err != nil {
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t.Fatalf("failed to update fixture: %v", err)
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}
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}
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want, err := os.ReadFile(path)
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if err != nil {
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t.Fatalf("failed to load fixture: %v", err)
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}
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if diff := cmp.Diff(want, got); diff != "" {
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t.Errorf("unexpected difference from expected bytes:\n%s", diff)
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}
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}))
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defer srv.Close()
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client, err := dynamic.NewForConfig(&rest.Config{
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Host: "example.com",
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UserAgent: "TestGoldenRequest",
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Transport: &http.Transport{
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// The client will send a static Host header while always
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// connecting to the test server.
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DialContext: func(ctx context.Context, network string, addr string) (net.Conn, error) {
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u, err := url.Parse(srv.URL)
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if err != nil {
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return nil, fmt.Errorf("failed to parse test server url: %w", err)
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}
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return (&net.Dialer{}).DialContext(ctx, "tcp", u.Host)
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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ctx, cancel := context.WithTimeout(context.Background(), time.Second)
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defer cancel()
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if err := tc.do(ctx, client); err != nil {
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// This test detects server-perceptible changes to the request. As
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// long as the server receives the expected request, a non-nil error
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// returned from a client method is not a failure.
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t.Logf("client returned non-nil error: %v", err)
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}
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select {
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case <-handled:
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default:
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t.Fatal("no request received")
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}
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})
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}
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}
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type RoundTripperFunc func(*http.Request) (*http.Response, error)
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func (f RoundTripperFunc) RoundTrip(r *http.Request) (*http.Response, error) {
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return f(r)
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}
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// TestGoldenResponse tests that the objects returned from dynamic client methods, given a fixed
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// HTTP response, are not changed unintentionally by changes to the client.
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func TestGoldenResponse(t *testing.T) {
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for _, tc := range []struct {
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name string
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response string // name of fixture containing a serialized HTTP1.1 response
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do func(t *testing.T, client dynamic.ResourceInterface) interface{}
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}{
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{
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name: "create",
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response: "nonlist",
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do: func(t *testing.T, client dynamic.ResourceInterface) interface{} {
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got, err := client.Create(context.Background(), &unstructured.Unstructured{}, metav1.CreateOptions{})
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if err != nil {
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t.Fatal(err)
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}
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return got.UnstructuredContent()
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},
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},
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{
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name: "update",
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response: "nonlist",
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do: func(t *testing.T, client dynamic.ResourceInterface) interface{} {
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got, err := client.Update(context.Background(), &unstructured.Unstructured{Object: map[string]interface{}{"metadata": map[string]interface{}{"name": "name"}}}, metav1.UpdateOptions{})
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if err != nil {
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t.Fatal(err)
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}
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return got.UnstructuredContent()
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},
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},
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{
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name: "updatestatus",
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response: "nonlist",
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do: func(t *testing.T, client dynamic.ResourceInterface) interface{} {
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got, err := client.UpdateStatus(context.Background(), &unstructured.Unstructured{Object: map[string]interface{}{"metadata": map[string]interface{}{"name": "name"}}}, metav1.UpdateOptions{})
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if err != nil {
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t.Fatal(err)
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}
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return got.UnstructuredContent()
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},
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},
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{
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name: "get",
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response: "nonlist",
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do: func(t *testing.T, client dynamic.ResourceInterface) interface{} {
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got, err := client.Get(context.Background(), "name", metav1.GetOptions{})
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if err != nil {
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t.Fatal(err)
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}
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return got.UnstructuredContent()
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},
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},
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{
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name: "list",
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response: "list",
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do: func(t *testing.T, client dynamic.ResourceInterface) interface{} {
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got, err := client.List(context.Background(), metav1.ListOptions{})
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if err != nil {
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t.Fatal(err)
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}
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return got.UnstructuredContent()
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},
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},
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{
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name: "watch",
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response: "events",
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do: func(t *testing.T, client dynamic.ResourceInterface) interface{} {
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w, err := client.Watch(context.Background(), metav1.ListOptions{})
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if err != nil {
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t.Fatal(err)
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}
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defer w.Stop()
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var got []interface{}
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for e := range w.ResultChan() {
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u, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&metav1.WatchEvent{
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Type: string(e.Type),
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Object: runtime.RawExtension{Object: e.Object},
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})
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if err != nil {
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t.Fatalf("failed to convert watch event to unstructured content: %v", err)
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}
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got = append(got, u)
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}
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return got
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},
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},
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} {
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parentTestName := t.Name()
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t.Run(tc.name, func(t *testing.T) {
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client, err := dynamic.NewForConfig(&rest.Config{
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Transport: RoundTripperFunc(func(request *http.Request) (*http.Response, error) {
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fd, err := os.Open(filepath.Join("testdata", filepath.FromSlash(parentTestName), "responses", tc.response))
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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if err := fd.Close(); err != nil {
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t.Fatal(err)
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}
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}()
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response, err := http.ReadResponse(bufio.NewReader(fd), request)
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if err != nil {
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t.Fatal(err)
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}
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return response, nil
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}),
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})
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if err != nil {
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t.Fatal(err)
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}
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got := tc.do(t, client.Resource(schema.GroupVersionResource{}))
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path := filepath.Join("testdata", filepath.FromSlash(t.Name()))
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if os.Getenv("UPDATE_DYNAMIC_CLIENT_FIXTURES") == "true" {
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fixture, err := json.Marshal(got)
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if err != nil {
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t.Fatal(err)
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}
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if err := os.WriteFile(path, fixture, os.FileMode(0644)); err != nil {
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t.Fatalf("failed to update fixture: %v", err)
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}
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}
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fixture, err := os.ReadFile(path)
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if err != nil {
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t.Fatal(err)
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}
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var want interface{}
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if err := json.Unmarshal(fixture, &want); err != nil {
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t.Fatal(err)
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}
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if diff := cmp.Diff(want, got); diff != "" {
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t.Errorf("unexpected diff:\n%s", diff)
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}
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})
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}
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}
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