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unit test for create cluster
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parent
90250220a9
commit
7c362f2f65
@ -50,6 +50,7 @@ go_test(
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srcs = [
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"config_test.go",
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"create_authinfo_test.go",
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"create_cluster_test.go",
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"create_context_test.go",
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"current_context_test.go",
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"delete_cluster_test.go",
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119
pkg/kubectl/cmd/config/create_cluster_test.go
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119
pkg/kubectl/cmd/config/create_cluster_test.go
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@ -0,0 +1,119 @@
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/*
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Copyright 2017 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 config
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import (
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"bytes"
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"io/ioutil"
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"os"
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"testing"
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"k8s.io/client-go/tools/clientcmd"
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clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
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)
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type createClusterTest struct {
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description string
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config clientcmdapi.Config
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args []string
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flags []string
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expected string
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expectedConfig clientcmdapi.Config
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}
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func TestCreateCluster(t *testing.T) {
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conf := clientcmdapi.Config{}
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test := createClusterTest{
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description: "Testing 'kubectl config set-cluster' with a new cluster",
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config: conf,
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args: []string{"my-cluster"},
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flags: []string{
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"--server=http://192.168.0.1",
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},
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expected: `Cluster "my-cluster" set.` + "\n",
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expectedConfig: clientcmdapi.Config{
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Clusters: map[string]*clientcmdapi.Cluster{
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"my-cluster": {Server: "http://192.168.0.1"},
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},
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},
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}
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test.run(t)
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}
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func TestModifyCluster(t *testing.T) {
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conf := clientcmdapi.Config{
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Clusters: map[string]*clientcmdapi.Cluster{
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"my-cluster": {Server: "https://192.168.0.1"},
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},
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}
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test := createClusterTest{
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description: "Testing 'kubectl config set-cluster' with an existing cluster",
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config: conf,
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args: []string{"my-cluster"},
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flags: []string{
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"--server=https://192.168.0.99",
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},
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expected: `Cluster "my-cluster" set.` + "\n",
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expectedConfig: clientcmdapi.Config{
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Clusters: map[string]*clientcmdapi.Cluster{
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"my-cluster": {Server: "https://192.168.0.99"},
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},
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},
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}
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test.run(t)
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}
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func (test createClusterTest) run(t *testing.T) {
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fakeKubeFile, err := ioutil.TempFile(os.TempDir(), "")
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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defer os.Remove(fakeKubeFile.Name())
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err = clientcmd.WriteToFile(test.config, fakeKubeFile.Name())
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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pathOptions := clientcmd.NewDefaultPathOptions()
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pathOptions.GlobalFile = fakeKubeFile.Name()
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pathOptions.EnvVar = ""
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdConfigSetCluster(buf, pathOptions)
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cmd.SetArgs(test.args)
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cmd.Flags().Parse(test.flags)
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if err := cmd.Execute(); err != nil {
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t.Fatalf("unexpected error executing command: %v, args: %v, flags: %v", err, test.args, test.flags)
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}
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config, err := clientcmd.LoadFromFile(fakeKubeFile.Name())
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if err != nil {
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t.Fatalf("unexpected error loading kubeconfig file: %v", err)
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}
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if len(test.expected) != 0 {
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if buf.String() != test.expected {
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t.Errorf("Failed in %q\n expected %v\n but got %v", test.description, test.expected, buf.String())
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}
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}
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if len(test.args) > 0 {
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cluster, ok := config.Clusters[test.args[0]]
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if !ok {
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t.Errorf("expected cluster %v, but got nil", test.args[0])
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return
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}
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if cluster.Server != test.expectedConfig.Clusters[test.args[0]].Server {
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t.Errorf("Fail in %q\n expected cluster server %v\n but got %v\n ", test.description, test.expectedConfig.Clusters[test.args[0]].Server, cluster.Server)
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}
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}
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}
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