add test for kubectl create pdb

pkg/kubectl/cmd/BUILD

@@ -158,6 +158,7 @@ go_test(
         "create_configmap_test.go",
         "create_deployment_test.go",
         "create_namespace_test.go",
+        "create_pdb_test.go",
         "create_quota_test.go",
         "create_role_test.go",
         "create_rolebinding_test.go",

pkg/kubectl/cmd/create_pdb_test.go

@@ -0,0 +1,59 @@
+/*
+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 cmd
+
+import (
+	"bytes"
+	"io/ioutil"
+	"net/http"
+	"testing"
+
+	restclient "k8s.io/client-go/rest"
+	"k8s.io/client-go/rest/fake"
+	"k8s.io/kubernetes/pkg/api"
+	cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
+)
+
+func TestCreatePdb(t *testing.T) {
+	pdbName := "my-pdb"
+	f, tf, _, ns := cmdtesting.NewAPIFactory()
+	tf.Client = &fake.RESTClient{
+		APIRegistry:          api.Registry,
+		NegotiatedSerializer: ns,
+		Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Body:       ioutil.NopCloser(&bytes.Buffer{}),
+			}, nil
+		}),
+	}
+	tf.ClientConfig = &restclient.Config{}
+	tf.Printer = &testPrinter{}
+	tf.Namespace = "test"
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := NewCmdCreatePodDisruptionBudget(f, buf)
+	cmd.Flags().Set("min-available", "1")
+	cmd.Flags().Set("selector", "app=rails")
+	cmd.Flags().Set("dry-run", "true")
+	cmd.Flags().Set("output", "name")
+	CreatePodDisruptionBudget(f, buf, cmd, []string{pdbName})
+	expectedOutput := "poddisruptionbudget/" + pdbName + "\n"
+	if buf.String() != expectedOutput {
+		t.Errorf("expected output: %s, but got: %s", expectedOutput, buf.String())
+	}
+}