| /* |
| Copyright 2017 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 config |
| |
| import ( |
| "bytes" |
| "io/ioutil" |
| "os" |
| "testing" |
| |
| "k8s.io/client-go/tools/clientcmd" |
| clientcmdapi "k8s.io/client-go/tools/clientcmd/api" |
| ) |
| |
| type useContextTest struct { |
| description string |
| config clientcmdapi.Config //initiate kubectl config |
| args []string //kubectl config use-context args |
| expected string //expect out |
| expectedConfig clientcmdapi.Config //expect kubectl config |
| } |
| |
| func TestUseContext(t *testing.T) { |
| conf := clientcmdapi.Config{ |
| Kind: "Config", |
| APIVersion: "v1", |
| Clusters: map[string]*clientcmdapi.Cluster{ |
| "minikube": {Server: "https://192.168.99.100:8443"}, |
| "my-cluster": {Server: "https://192.168.0.1:3434"}, |
| }, |
| Contexts: map[string]*clientcmdapi.Context{ |
| "minikube": {AuthInfo: "minikube", Cluster: "minikube"}, |
| "my-cluster": {AuthInfo: "mu-cluster", Cluster: "my-cluster"}, |
| }, |
| CurrentContext: "minikube", |
| } |
| test := useContextTest{ |
| description: "Testing for kubectl config use-context", |
| config: conf, |
| args: []string{"my-cluster"}, |
| expected: `Switched to context "my-cluster".` + "\n", |
| expectedConfig: clientcmdapi.Config{ |
| Kind: "Config", |
| APIVersion: "v1", |
| Clusters: map[string]*clientcmdapi.Cluster{ |
| "minikube": {Server: "https://192.168.99.100:8443"}, |
| "my-cluster": {Server: "https://192.168.0.1:3434"}, |
| }, |
| Contexts: map[string]*clientcmdapi.Context{ |
| "minikube": {AuthInfo: "minikube", Cluster: "minikube"}, |
| "my-cluster": {AuthInfo: "mu-cluster", Cluster: "my-cluster"}, |
| }, |
| CurrentContext: "my-cluster", |
| }, |
| } |
| test.run(t) |
| } |
| |
| func (test useContextTest) run(t *testing.T) { |
| fakeKubeFile, err := ioutil.TempFile(os.TempDir(), "") |
| if err != nil { |
| t.Fatalf("unexpected error: %v", err) |
| } |
| defer os.Remove(fakeKubeFile.Name()) |
| err = clientcmd.WriteToFile(test.config, fakeKubeFile.Name()) |
| if err != nil { |
| t.Fatalf("unexpected error: %v", err) |
| } |
| pathOptions := clientcmd.NewDefaultPathOptions() |
| pathOptions.GlobalFile = fakeKubeFile.Name() |
| pathOptions.EnvVar = "" |
| buf := bytes.NewBuffer([]byte{}) |
| cmd := NewCmdConfigUseContext(buf, pathOptions) |
| cmd.SetArgs(test.args) |
| if err := cmd.Execute(); err != nil { |
| t.Fatalf("unexpected error executing command: %v,kubectl config use-context args: %v", err, test.args) |
| } |
| config, err := clientcmd.LoadFromFile(fakeKubeFile.Name()) |
| if err != nil { |
| t.Fatalf("unexpected error loading kubeconfig file: %v", err) |
| } |
| if len(test.expected) != 0 { |
| if buf.String() != test.expected { |
| t.Errorf("Failed in :%q\n expected %v\n, but got %v\n", test.description, test.expected, buf.String()) |
| } |
| } |
| if test.expectedConfig.CurrentContext != config.CurrentContext { |
| t.Errorf("Failed in :%q\n expected config %v, but found %v\n in kubeconfig\n", test.description, test.expectedConfig, config) |
| } |
| } |