cri-o/vendor/k8s.io/kubernetes/pkg/kubectl/resource/helper_test.go

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/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package resource
import (
"bytes"
"errors"
"io"
"io/ioutil"
"net/http"
"reflect"
"strings"
"testing"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/testapi"
apitesting "k8s.io/kubernetes/pkg/api/testing"
"k8s.io/kubernetes/pkg/client/restclient/fake"
)
func objBody(obj runtime.Object) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), obj))))
}
func header() http.Header {
header := http.Header{}
header.Set("Content-Type", runtime.ContentTypeJSON)
return header
}
// splitPath returns the segments for a URL path.
func splitPath(path string) []string {
path = strings.Trim(path, "/")
if path == "" {
return []string{}
}
return strings.Split(path, "/")
}
func TestHelperDelete(t *testing.T) {
tests := []struct {
Err bool
Req func(*http.Request) bool
Resp *http.Response
HttpErr error
}{
{
HttpErr: errors.New("failure"),
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusNotFound,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusFailure}),
},
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusOK,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusSuccess}),
},
Req: func(req *http.Request) bool {
if req.Method != "DELETE" {
t.Errorf("unexpected method: %#v", req)
return false
}
parts := splitPath(req.URL.Path)
if len(parts) < 3 {
t.Errorf("expected URL path to have 3 parts: %s", req.URL.Path)
return false
}
if parts[1] != "bar" {
t.Errorf("url doesn't contain namespace: %#v", req)
return false
}
if parts[2] != "foo" {
t.Errorf("url doesn't contain name: %#v", req)
return false
}
return true
},
},
}
for _, test := range tests {
client := &fake.RESTClient{
NegotiatedSerializer: testapi.Default.NegotiatedSerializer(),
Resp: test.Resp,
Err: test.HttpErr,
}
modifier := &Helper{
RESTClient: client,
NamespaceScoped: true,
}
err := modifier.Delete("bar", "foo")
if (err != nil) != test.Err {
t.Errorf("unexpected error: %t %v", test.Err, err)
}
if err != nil {
continue
}
if test.Req != nil && !test.Req(client.Req) {
t.Errorf("unexpected request: %#v", client.Req)
}
}
}
func TestHelperCreate(t *testing.T) {
expectPost := func(req *http.Request) bool {
if req.Method != "POST" {
t.Errorf("unexpected method: %#v", req)
return false
}
parts := splitPath(req.URL.Path)
if parts[1] != "bar" {
t.Errorf("url doesn't contain namespace: %#v", req)
return false
}
return true
}
tests := []struct {
Resp *http.Response
HttpErr error
Modify bool
Object runtime.Object
ExpectObject runtime.Object
Err bool
Req func(*http.Request) bool
}{
{
HttpErr: errors.New("failure"),
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusNotFound,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusFailure}),
},
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusOK,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusSuccess}),
},
Object: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}},
ExpectObject: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}},
Req: expectPost,
},
{
Modify: false,
Object: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"}},
ExpectObject: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"}},
Resp: &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&metav1.Status{Status: metav1.StatusSuccess})},
Req: expectPost,
},
{
Modify: true,
Object: &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"},
Spec: apitesting.DeepEqualSafePodSpec(),
},
ExpectObject: &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Spec: apitesting.DeepEqualSafePodSpec(),
},
Resp: &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&metav1.Status{Status: metav1.StatusSuccess})},
Req: expectPost,
},
}
for i, test := range tests {
client := &fake.RESTClient{
NegotiatedSerializer: testapi.Default.NegotiatedSerializer(),
Resp: test.Resp,
Err: test.HttpErr,
}
modifier := &Helper{
RESTClient: client,
Versioner: testapi.Default.MetadataAccessor(),
NamespaceScoped: true,
}
_, err := modifier.Create("bar", test.Modify, test.Object)
if (err != nil) != test.Err {
t.Errorf("%d: unexpected error: %t %v", i, test.Err, err)
}
if err != nil {
continue
}
if test.Req != nil && !test.Req(client.Req) {
t.Errorf("%d: unexpected request: %#v", i, client.Req)
}
body, err := ioutil.ReadAll(client.Req.Body)
if err != nil {
t.Fatalf("%d: unexpected error: %#v", i, err)
}
t.Logf("got body: %s", string(body))
expect := []byte{}
if test.ExpectObject != nil {
expect = []byte(runtime.EncodeOrDie(testapi.Default.Codec(), test.ExpectObject))
}
if !reflect.DeepEqual(expect, body) {
t.Errorf("%d: unexpected body: %s (expected %s)", i, string(body), string(expect))
}
}
}
func TestHelperGet(t *testing.T) {
tests := []struct {
Err bool
Req func(*http.Request) bool
Resp *http.Response
HttpErr error
}{
{
HttpErr: errors.New("failure"),
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusNotFound,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusFailure}),
},
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusOK,
Header: header(),
Body: objBody(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}),
},
Req: func(req *http.Request) bool {
if req.Method != "GET" {
t.Errorf("unexpected method: %#v", req)
return false
}
parts := splitPath(req.URL.Path)
if parts[1] != "bar" {
t.Errorf("url doesn't contain namespace: %#v", req)
return false
}
if parts[2] != "foo" {
t.Errorf("url doesn't contain name: %#v", req)
return false
}
return true
},
},
}
for _, test := range tests {
client := &fake.RESTClient{
NegotiatedSerializer: testapi.Default.NegotiatedSerializer(),
Resp: test.Resp,
Err: test.HttpErr,
}
modifier := &Helper{
RESTClient: client,
NamespaceScoped: true,
}
obj, err := modifier.Get("bar", "foo", false)
if (err != nil) != test.Err {
t.Errorf("unexpected error: %t %v", test.Err, err)
}
if err != nil {
continue
}
if obj.(*api.Pod).Name != "foo" {
t.Errorf("unexpected object: %#v", obj)
}
if test.Req != nil && !test.Req(client.Req) {
t.Errorf("unexpected request: %#v", client.Req)
}
}
}
func TestHelperList(t *testing.T) {
tests := []struct {
Err bool
Req func(*http.Request) bool
Resp *http.Response
HttpErr error
}{
{
HttpErr: errors.New("failure"),
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusNotFound,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusFailure}),
},
Err: true,
},
{
Resp: &http.Response{
StatusCode: http.StatusOK,
Header: header(),
Body: objBody(&api.PodList{
Items: []api.Pod{{
ObjectMeta: api.ObjectMeta{Name: "foo"},
},
},
}),
},
Req: func(req *http.Request) bool {
if req.Method != "GET" {
t.Errorf("unexpected method: %#v", req)
return false
}
if req.URL.Path != "/namespaces/bar" {
t.Errorf("url doesn't contain name: %#v", req.URL)
return false
}
if req.URL.Query().Get(metav1.LabelSelectorQueryParam(api.Registry.GroupOrDie(api.GroupName).GroupVersion.String())) != labels.SelectorFromSet(labels.Set{"foo": "baz"}).String() {
t.Errorf("url doesn't contain query parameters: %#v", req.URL)
return false
}
return true
},
},
}
for _, test := range tests {
client := &fake.RESTClient{
NegotiatedSerializer: testapi.Default.NegotiatedSerializer(),
Resp: test.Resp,
Err: test.HttpErr,
}
modifier := &Helper{
RESTClient: client,
NamespaceScoped: true,
}
obj, err := modifier.List("bar", api.Registry.GroupOrDie(api.GroupName).GroupVersion.String(), labels.SelectorFromSet(labels.Set{"foo": "baz"}), false)
if (err != nil) != test.Err {
t.Errorf("unexpected error: %t %v", test.Err, err)
}
if err != nil {
continue
}
if obj.(*api.PodList).Items[0].Name != "foo" {
t.Errorf("unexpected object: %#v", obj)
}
if test.Req != nil && !test.Req(client.Req) {
t.Errorf("unexpected request: %#v", client.Req)
}
}
}
func TestHelperReplace(t *testing.T) {
expectPut := func(path string, req *http.Request) bool {
if req.Method != "PUT" {
t.Errorf("unexpected method: %#v", req)
return false
}
if req.URL.Path != path {
t.Errorf("unexpected url: %v", req.URL)
return false
}
return true
}
tests := []struct {
Resp *http.Response
HTTPClient *http.Client
HttpErr error
Overwrite bool
Object runtime.Object
Namespace string
NamespaceScoped bool
ExpectPath string
ExpectObject runtime.Object
Err bool
Req func(string, *http.Request) bool
}{
{
Namespace: "bar",
NamespaceScoped: true,
HttpErr: errors.New("failure"),
Err: true,
},
{
Namespace: "bar",
NamespaceScoped: true,
Object: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}},
Resp: &http.Response{
StatusCode: http.StatusNotFound,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusFailure}),
},
Err: true,
},
{
Namespace: "bar",
NamespaceScoped: true,
Object: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}},
ExpectPath: "/namespaces/bar/foo",
ExpectObject: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}},
Resp: &http.Response{
StatusCode: http.StatusOK,
Header: header(),
Body: objBody(&metav1.Status{Status: metav1.StatusSuccess}),
},
Req: expectPut,
},
// namespace scoped resource
{
Namespace: "bar",
NamespaceScoped: true,
Object: &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Spec: apitesting.DeepEqualSafePodSpec(),
},
ExpectPath: "/namespaces/bar/foo",
ExpectObject: &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"},
Spec: apitesting.DeepEqualSafePodSpec(),
},
Overwrite: true,
HTTPClient: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
if req.Method == "PUT" {
return &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&metav1.Status{Status: metav1.StatusSuccess})}, nil
}
return &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"}})}, nil
}),
Req: expectPut,
},
// cluster scoped resource
{
Object: &api.Node{
ObjectMeta: api.ObjectMeta{Name: "foo"},
},
ExpectObject: &api.Node{
ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"},
},
Overwrite: true,
ExpectPath: "/foo",
HTTPClient: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
if req.Method == "PUT" {
return &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&metav1.Status{Status: metav1.StatusSuccess})}, nil
}
return &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&api.Node{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"}})}, nil
}),
Req: expectPut,
},
{
Namespace: "bar",
NamespaceScoped: true,
Object: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"}},
ExpectPath: "/namespaces/bar/foo",
ExpectObject: &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: "10"}},
Resp: &http.Response{StatusCode: http.StatusOK, Header: header(), Body: objBody(&metav1.Status{Status: metav1.StatusSuccess})},
Req: expectPut,
},
}
for i, test := range tests {
client := &fake.RESTClient{
Client: test.HTTPClient,
NegotiatedSerializer: testapi.Default.NegotiatedSerializer(),
Resp: test.Resp,
Err: test.HttpErr,
}
modifier := &Helper{
RESTClient: client,
Versioner: testapi.Default.MetadataAccessor(),
NamespaceScoped: test.NamespaceScoped,
}
_, err := modifier.Replace(test.Namespace, "foo", test.Overwrite, test.Object)
if (err != nil) != test.Err {
t.Errorf("%d: unexpected error: %t %v", i, test.Err, err)
}
if err != nil {
continue
}
if test.Req != nil && !test.Req(test.ExpectPath, client.Req) {
t.Errorf("%d: unexpected request: %#v", i, client.Req)
}
body, err := ioutil.ReadAll(client.Req.Body)
if err != nil {
t.Fatalf("%d: unexpected error: %#v", i, err)
}
expect := []byte{}
if test.ExpectObject != nil {
expect = []byte(runtime.EncodeOrDie(testapi.Default.Codec(), test.ExpectObject))
}
if !reflect.DeepEqual(expect, body) {
t.Errorf("%d: unexpected body: %s", i, string(body))
}
}
}