kubernetes delete_cluster_test 源码
kubernetes delete_cluster_test 代码
文件路径：/staging/src/k8s.io/kubectl/pkg/cmd/config/delete_cluster_test.go
/*
Copyright 2016 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"
"fmt"
"io/ioutil"
"os"
"reflect"
"testing"
"k8s.io/client-go/tools/clientcmd"
clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
)
type deleteClusterTest struct {
config clientcmdapi.Config
clusterToDelete string
expectedClusters []string
expectedOut string
}
func TestDeleteCluster(t *testing.T) {
conf := clientcmdapi.Config{
Clusters: map[string]*clientcmdapi.Cluster{
"minikube": {Server: "https://192.168.0.99"},
"otherkube": {Server: "https://192.168.0.100"},
},
}
test := deleteClusterTest{
config: conf,
clusterToDelete: "minikube",
expectedClusters: []string{"otherkube"},
expectedOut: "deleted cluster minikube from %s\n",
}
test.run(t)
}
func (test deleteClusterTest) 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 := NewCmdConfigDeleteCluster(buf, pathOptions)
cmd.SetArgs([]string{test.clusterToDelete})
if err := cmd.Execute(); err != nil {
t.Fatalf("unexpected error executing command: %v", err)
}
expectedOutWithFile := fmt.Sprintf(test.expectedOut, fakeKubeFile.Name())
if expectedOutWithFile != buf.String() {
t.Errorf("expected output %s, but got %s", expectedOutWithFile, buf.String())
return
}
// Verify cluster was removed from kubeconfig file
config, err := clientcmd.LoadFromFile(fakeKubeFile.Name())
if err != nil {
t.Fatalf("unexpected error loading kubeconfig file: %v", err)
}
clusters := make([]string, 0, len(config.Clusters))
for k := range config.Clusters {
clusters = append(clusters, k)
}
if !reflect.DeepEqual(test.expectedClusters, clusters) {
t.Errorf("expected clusters %v, but found %v in kubeconfig", test.expectedClusters, clusters)
}
}
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