provide standard iostream struct for commands

pkg/kubectl/cmd/create/create_deployment_test.go

@@ -30,6 +30,7 @@ import (
 	"k8s.io/kubernetes/pkg/kubectl"
 	cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
 	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
 )
 
 func Test_generatorFromName(t *testing.T) {
@@ -104,9 +105,9 @@ func TestCreateDeployment(t *testing.T) {
 	}
 	tf.ClientConfigVal = &restclient.Config{}
 	tf.Namespace = "test"
-	buf := bytes.NewBuffer([]byte{})
 
-	cmd := NewCmdCreateDeployment(tf, buf, buf)
+	ioStreams, _, buf, _ := genericclioptions.NewTestIOStreams()
+	cmd := NewCmdCreateDeployment(tf, ioStreams)
 	cmd.Flags().Set("dry-run", "true")
 	cmd.Flags().Set("output", "name")
 	cmd.Flags().Set("image", "hollywood/jonny.depp:v2")
@@ -136,16 +137,14 @@ func TestCreateDeploymentNoImage(t *testing.T) {
 	tf.ClientConfigVal = &restclient.Config{}
 	tf.Namespace = "test"
 
-	buf := bytes.NewBuffer([]byte{})
-	errBuff := bytes.NewBuffer([]byte{})
-	cmd := NewCmdCreateDeployment(tf, buf, errBuff)
+	ioStreams := genericclioptions.NewTestIOStreamsDiscard()
+	cmd := NewCmdCreateDeployment(tf, ioStreams)
 	cmd.Flags().Set("output", "name")
 	options := &DeploymentOpts{
 		CreateSubcommandOptions: &CreateSubcommandOptions{
 			PrintFlags: NewPrintFlags("created"),
-			CmdOut:     buf,
-			CmdErr:     errBuff,
 			DryRun:     true,
+			IOStreams:  ioStreams,
 		},
 	}