Make GetPrinter take the necessary conversion arguments

This fully encapsulates decisions about conversion within GetPrinter,
which prevents users from accidentally not converting.

pkg/kubectl/cmd/get_test.go

@@ -0,0 +1,51 @@
+/*
+Copyright 2014 Google Inc. All rights reserved.
+
+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_test
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"reflect"
+	"testing"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
+)
+
+// Verifies that schemas that are not in the master tree of Kubernetes can be retrieved via Get.
+func TestGetUnknownSchemaObject(t *testing.T) {
+	f, tf, codec := NewTestFactory()
+	tf.Printer = &testPrinter{}
+	tf.Client = &client.FakeRESTClient{
+		Codec: codec,
+		Resp:  &http.Response{StatusCode: 200, Body: objBody(codec, &internalType{Name: "foo"})},
+	}
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := f.NewCmdGet(buf)
+	cmd.Flags().String("namespace", "test", "")
+	cmd.Run(cmd, []string{"type", "foo"})
+
+	expected := &internalType{Name: "foo"}
+	actual := tf.Printer.(*testPrinter).Obj
+	if !reflect.DeepEqual(expected, actual) {
+		t.Errorf("unexpected object: %#v", actual)
+	}
+	if buf.String() != fmt.Sprintf("%#v", expected) {
+		t.Errorf("unexpected output: %s", buf.String())
+	}
+}