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(https://github.com/kubernetes/contrib/tree/master/mungegithub) copied from https://github.com/kubernetes/kubernetes.git, branch master, last commit is 71ba8a90f0a4f3a307cffeb8f8566d13277cb135
This commit is contained in:
Kubernetes Publisher
158
discovery/helper_blackbox_test.go
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158
discovery/helper_blackbox_test.go
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@@ -0,0 +1,158 @@
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/*
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Copyright 2015 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 discovery_test
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import (
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"bytes"
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"encoding/json"
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"errors"
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"io"
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"io/ioutil"
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"net/http"
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"strings"
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"testing"
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"k8s.io/client-go/discovery"
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"k8s.io/client-go/pkg/api"
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"k8s.io/client-go/pkg/api/testapi"
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uapi "k8s.io/client-go/pkg/api/unversioned"
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"k8s.io/client-go/pkg/apimachinery/registered"
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"k8s.io/client-go/pkg/runtime"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/rest/fake"
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)
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func objBody(object interface{}) io.ReadCloser {
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output, err := json.MarshalIndent(object, "", "")
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if err != nil {
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panic(err)
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}
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return ioutil.NopCloser(bytes.NewReader([]byte(output)))
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}
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func TestNegotiateVersion(t *testing.T) {
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tests := []struct {
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name string
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version *uapi.GroupVersion
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expectedVersion *uapi.GroupVersion
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serverVersions []string
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clientVersions []uapi.GroupVersion
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config *rest.Config
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expectErr func(err error) bool
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sendErr error
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statusCode int
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}{
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{
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name: "server supports client default",
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version: &uapi.GroupVersion{Version: "version1"},
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config: &rest.Config{},
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serverVersions: []string{"version1", registered.GroupOrDie(api.GroupName).GroupVersion.String()},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectedVersion: &uapi.GroupVersion{Version: "version1"},
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statusCode: http.StatusOK,
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},
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{
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name: "server falls back to client supported",
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version: ®istered.GroupOrDie(api.GroupName).GroupVersion,
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config: &rest.Config{},
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serverVersions: []string{"version1"},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectedVersion: &uapi.GroupVersion{Version: "version1"},
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statusCode: http.StatusOK,
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},
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{
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name: "explicit version supported",
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config: &rest.Config{ContentConfig: rest.ContentConfig{GroupVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion}},
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serverVersions: []string{"/version1", registered.GroupOrDie(api.GroupName).GroupVersion.String()},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectedVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion,
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statusCode: http.StatusOK,
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},
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{
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name: "explicit version not supported",
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config: &rest.Config{ContentConfig: rest.ContentConfig{GroupVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion}},
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serverVersions: []string{"version1"},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectErr: func(err error) bool { return strings.Contains(err.Error(), `server does not support API version "v1"`) },
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statusCode: http.StatusOK,
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},
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{
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name: "connection refused error",
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config: &rest.Config{ContentConfig: rest.ContentConfig{GroupVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion}},
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serverVersions: []string{"version1"},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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sendErr: errors.New("connection refused"),
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expectErr: func(err error) bool { return strings.Contains(err.Error(), "connection refused") },
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statusCode: http.StatusOK,
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},
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{
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name: "discovery fails due to 403 Forbidden errors and thus serverVersions is empty, use default GroupVersion",
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config: &rest.Config{ContentConfig: rest.ContentConfig{GroupVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion}},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectedVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion,
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statusCode: http.StatusForbidden,
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},
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{
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name: "discovery fails due to 404 Not Found errors and thus serverVersions is empty, use requested GroupVersion",
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version: &uapi.GroupVersion{Version: "version1"},
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config: &rest.Config{ContentConfig: rest.ContentConfig{GroupVersion: ®istered.GroupOrDie(api.GroupName).GroupVersion}},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectedVersion: &uapi.GroupVersion{Version: "version1"},
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statusCode: http.StatusNotFound,
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},
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{
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name: "discovery fails due to 403 Forbidden errors and thus serverVersions is empty, no fallback GroupVersion",
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config: &rest.Config{},
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clientVersions: []uapi.GroupVersion{{Version: "version1"}, registered.GroupOrDie(api.GroupName).GroupVersion},
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expectErr: func(err error) bool { return strings.Contains(err.Error(), "failed to negotiate an api version;") },
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statusCode: http.StatusForbidden,
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},
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}
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for _, test := range tests {
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fakeClient := &fake.RESTClient{
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NegotiatedSerializer: testapi.Default.NegotiatedSerializer(),
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Resp: &http.Response{
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StatusCode: test.statusCode,
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Body: objBody(&uapi.APIVersions{Versions: test.serverVersions}),
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},
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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if test.sendErr != nil {
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return nil, test.sendErr
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}
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header := http.Header{}
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header.Set("Content-Type", runtime.ContentTypeJSON)
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return &http.Response{StatusCode: test.statusCode, Header: header, Body: objBody(&uapi.APIVersions{Versions: test.serverVersions})}, nil
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}),
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}
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c := discovery.NewDiscoveryClientForConfigOrDie(test.config)
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c.RESTClient().(*rest.RESTClient).Client = fakeClient.Client
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response, err := discovery.NegotiateVersion(c, test.config, test.version, test.clientVersions)
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if err == nil && test.expectErr != nil {
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t.Errorf("expected error, got nil for [%s].", test.name)
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}
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if err != nil {
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if test.expectErr == nil || !test.expectErr(err) {
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t.Errorf("unexpected error for [%s]: %v.", test.name, err)
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}
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continue
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}
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if *response != *test.expectedVersion {
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t.Errorf("%s: expected version %s, got %s.", test.name, test.expectedVersion, response)
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}
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}
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}
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