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/cmd_test.go

@@ -0,0 +1,117 @@
+/*
+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"
+	"io"
+	"io/ioutil"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/meta"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
+	. "github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
+
+	"github.com/spf13/cobra"
+)
+
+type internalType struct {
+	Kind       string
+	APIVersion string
+
+	Name string
+}
+
+type externalType struct {
+	Kind       string `json:"kind"`
+	APIVersion string `json:"apiVersion"`
+
+	Name string `json:"name"`
+}
+
+func (*internalType) IsAnAPIObject() {}
+func (*externalType) IsAnAPIObject() {}
+
+func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
+	scheme := runtime.NewScheme()
+	scheme.AddKnownTypeWithName("", "Type", &internalType{})
+	scheme.AddKnownTypeWithName("unlikelyversion", "Type", &externalType{})
+
+	codec := runtime.CodecFor(scheme, "unlikelyversion")
+	mapper := meta.NewDefaultRESTMapper([]string{"unlikelyversion"}, func(version string) (*meta.VersionInterfaces, bool) {
+		return &meta.VersionInterfaces{
+			Codec:            codec,
+			ObjectConvertor:  scheme,
+			MetadataAccessor: meta.NewAccessor(),
+		}, (version == "unlikelyversion")
+	})
+	mapper.Add(scheme, false, "unlikelyversion")
+
+	return scheme, mapper, codec
+}
+
+type testPrinter struct {
+	Obj runtime.Object
+	Err error
+}
+
+func (t *testPrinter) PrintObj(obj runtime.Object, out io.Writer) error {
+	t.Obj = obj
+	fmt.Fprintf(out, "%#v", obj)
+	return t.Err
+}
+
+type testDescriber struct {
+	Name, Namespace string
+	Output          string
+	Err             error
+}
+
+func (t *testDescriber) Describe(namespace, name string) (output string, err error) {
+	t.Namespace, t.Name = namespace, name
+	return t.Output, t.Err
+}
+
+type testFactory struct {
+	Client    kubectl.RESTClient
+	Describer kubectl.Describer
+	Printer   kubectl.ResourcePrinter
+	Err       error
+}
+
+func NewTestFactory() (*Factory, *testFactory, runtime.Codec) {
+	scheme, mapper, codec := newExternalScheme()
+	t := &testFactory{}
+	return &Factory{
+		Mapper: mapper,
+		Typer:  scheme,
+		Client: func(*cobra.Command, *meta.RESTMapping) (kubectl.RESTClient, error) {
+			return t.Client, t.Err
+		},
+		Describer: func(*cobra.Command, *meta.RESTMapping) (kubectl.Describer, error) {
+			return t.Describer, t.Err
+		},
+		Printer: func(cmd *cobra.Command, mapping *meta.RESTMapping, noHeaders bool) (kubectl.ResourcePrinter, error) {
+			return t.Printer, t.Err
+		},
+	}, t, codec
+}
+
+func objBody(codec runtime.Codec, obj runtime.Object) io.ReadCloser {
+	return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, obj))))
+}

pkg/kubectl/cmd/describe_test.go

@@ -0,0 +1,50 @@
+/*
+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"
+	"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 TestDescribeUnknownSchemaObject(t *testing.T) {
+	d := &testDescriber{Output: "test output"}
+	f, tf, codec := NewTestFactory()
+	tf.Describer = d
+	tf.Client = &client.FakeRESTClient{
+		Codec: codec,
+		Resp:  &http.Response{StatusCode: 200, Body: objBody(codec, &internalType{Name: "foo"})},
+	}
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := f.NewCmdDescribe(buf)
+	cmd.Flags().String("namespace", "test", "")
+	cmd.Run(cmd, []string{"type", "foo"})
+
+	if d.Name != "foo" || d.Namespace != "test" {
+		t.Errorf("unexpected describer: %#v", d)
+	}
+
+	if buf.String() != fmt.Sprintf("%s\n", d.Output) {
+		t.Errorf("unexpected output: %s", buf.String())
+	}
+}

pkg/kubectl/cmd/get.go

@@ -20,9 +20,9 @@ import (
 	"fmt"
 	"io"
 
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
+
 	"github.com/spf13/cobra"
 )
 
@@ -66,27 +66,29 @@ Examples:
 			if len(outputVersion) == 0 {
 				outputVersion = mapping.APIVersion
 			}
-			printer, err := kubectl.GetPrinter(outputVersion, outputFormat, templateFile, defaultPrinter)
+
+			printer, err := kubectl.GetPrinter(outputFormat, templateFile, outputVersion, mapping.ObjectConvertor, defaultPrinter)
 			checkErr(err)
 
 			restHelper := kubectl.NewRESTHelper(client, mapping)
 			obj, err := restHelper.Get(namespace, name, labelSelector)
 			checkErr(err)
 
-			if !GetFlagBool(cmd, "watch-only") {
+			isWatch, isWatchOnly := GetFlagBool(cmd, "watch"), GetFlagBool(cmd, "watch-only")
+
+			// print the current object
+			if !isWatchOnly {
 				if err := printer.PrintObj(obj, out); err != nil {
 					checkErr(fmt.Errorf("Unable to output the provided object: %v", err))
 				}
 			}
 
-			if GetFlagBool(cmd, "watch") || GetFlagBool(cmd, "watch-only") {
+			// print watched changes
-				vi, err := latest.InterfacesFor(outputVersion)
+			if isWatch || isWatchOnly {
+				rv, err := mapping.MetadataAccessor.ResourceVersion(obj)
 				checkErr(err)
 
-				rv, err := vi.MetadataAccessor.ResourceVersion(obj)
+				w, err := restHelper.Watch(namespace, rv, labelSelector, labels.Everything())
-				checkErr(err)
-
-				w, err := restHelper.Watch(namespace, rv, labelSelector, labels.Set{}.AsSelector())
 				checkErr(err)
 
 				kubectl.WatchLoop(w, printer, out)

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())
+	}
+}

pkg/kubectl/resource_printer.go

@@ -28,40 +28,40 @@ import (
 	"text/template"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
 	"github.com/golang/glog"
 	"gopkg.in/v1/yaml"
 )
 
-// GetPrinter returns a resource printer and a bool indicating whether the object must be
+// GetPrinter takes a format type, an optional format argument, a version and a convertor
-// versioned for the given format.
+// to be used if the underlying printer requires the object to be in a specific schema (
-func GetPrinter(version, format, templateFile string, defaultPrinter ResourcePrinter) (ResourcePrinter, error) {
+// any of the generic formatters), and the default printer to use for this object.
+func GetPrinter(format, formatArgument, version string, convertor runtime.ObjectConvertor, defaultPrinter ResourcePrinter) (ResourcePrinter, error) {
 	var printer ResourcePrinter
 	switch format {
 	case "json":
-		printer = &JSONPrinter{version}
+		printer = &JSONPrinter{version, convertor}
 	case "yaml":
-		printer = &YAMLPrinter{version}
+		printer = &YAMLPrinter{version, convertor}
 	case "template":
-		if len(templateFile) == 0 {
+		if len(formatArgument) == 0 {
 			return nil, fmt.Errorf("template format specified but no template given")
 		}
 		var err error
-		printer, err = NewTemplatePrinter(version, []byte(templateFile))
+		printer, err = NewTemplatePrinter([]byte(formatArgument), version, convertor)
 		if err != nil {
-			return nil, fmt.Errorf("error parsing template %s, %v\n", templateFile, err)
+			return nil, fmt.Errorf("error parsing template %s, %v\n", formatArgument, err)
 		}
 	case "templatefile":
-		if len(templateFile) == 0 {
+		if len(formatArgument) == 0 {
 			return nil, fmt.Errorf("templatefile format specified but no template file given")
 		}
-		data, err := ioutil.ReadFile(templateFile)
+		data, err := ioutil.ReadFile(formatArgument)
 		if err != nil {
-			return nil, fmt.Errorf("error reading template %s, %v\n", templateFile, err)
+			return nil, fmt.Errorf("error reading template %s, %v\n", formatArgument, err)
 		}
-		printer, err = NewTemplatePrinter(version, data)
+		printer, err = NewTemplatePrinter(data, version, convertor)
 		if err != nil {
 			return nil, fmt.Errorf("error parsing template %s, %v\n", string(data), err)
 		}
@@ -73,28 +73,27 @@ func GetPrinter(version, format, templateFile string, defaultPrinter ResourcePri
 	return printer, nil
 }
 
-// ResourcePrinter is an interface that knows how to print API resources.
+// ResourcePrinter is an interface that knows how to print runtime objects.
 type ResourcePrinter interface {
 	// Print receives an arbitrary object, formats it and prints it to a writer.
 	PrintObj(runtime.Object, io.Writer) error
-
-	// Returns true if this printer emits properly versioned output.
-	IsVersioned() bool
 }
 
-// JSONPrinter is an implementation of ResourcePrinter which prints as JSON.
+// JSONPrinter is an implementation of ResourcePrinter which outputs an object as JSON.
+// The input object is assumed to be in the internal version of an API and is converted
+// to the given version first.
 type JSONPrinter struct {
 	version   string
+	convertor runtime.ObjectConvertor
 }
 
 // PrintObj is an implementation of ResourcePrinter.PrintObj which simply writes the object to the Writer.
-func (j *JSONPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
+func (p *JSONPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
-	vi, err := latest.InterfacesFor(j.version)
+	outObj, err := p.convertor.ConvertToVersion(obj, p.version)
 	if err != nil {
 		return err
 	}
-
+	data, err := json.Marshal(outObj)
-	data, err := vi.Codec.Encode(obj)
 	if err != nil {
 		return err
 	}
@@ -105,39 +104,20 @@ func (j *JSONPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
 	return err
 }
 
-// IsVersioned returns true.
+// YAMLPrinter is an implementation of ResourcePrinter which outputs an object as YAML.
-func (*JSONPrinter) IsVersioned() bool { return true }
+// The input object is assumed to be in the internal version of an API and is converted
-
+// to the given version first.
-func toVersionedMap(version string, obj runtime.Object) (map[string]interface{}, error) {
-	vi, err := latest.InterfacesFor(version)
-	if err != nil {
-		return nil, err
-	}
-
-	data, err := vi.Codec.Encode(obj)
-	if err != nil {
-		return nil, err
-	}
-	outObj := map[string]interface{}{}
-	err = json.Unmarshal(data, &outObj)
-	if err != nil {
-		return nil, err
-	}
-	return outObj, nil
-}
-
-// YAMLPrinter is an implementation of ResourcePrinter which prints as YAML.
 type YAMLPrinter struct {
 	version   string
+	convertor runtime.ObjectConvertor
 }
 
 // PrintObj prints the data as YAML.
-func (y *YAMLPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
+func (p *YAMLPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
-	outObj, err := toVersionedMap(y.version, obj)
+	outObj, err := p.convertor.ConvertToVersion(obj, p.version)
 	if err != nil {
 		return err
 	}
-
 	output, err := yaml.Marshal(outObj)
 	if err != nil {
 		return err
@@ -146,9 +126,6 @@ func (y *YAMLPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
 	return err
 }
 
-// IsVersioned returns true.
-func (*YAMLPrinter) IsVersioned() bool { return true }
-
 type handlerEntry struct {
 	columns   []string
 	printFunc reflect.Value
@@ -164,9 +141,6 @@ type HumanReadablePrinter struct {
 	lastType   reflect.Type
 }
 
-// IsVersioned returns false-- human readable printers do not make versioned output.
-func (*HumanReadablePrinter) IsVersioned() bool { return false }
-
 // NewHumanReadablePrinter creates a HumanReadablePrinter.
 func NewHumanReadablePrinter(noHeaders bool) *HumanReadablePrinter {
 	printer := &HumanReadablePrinter{
@@ -387,28 +361,34 @@ func (h *HumanReadablePrinter) PrintObj(obj runtime.Object, output io.Writer) er
 
 // TemplatePrinter is an implementation of ResourcePrinter which formats data with a Go Template.
 type TemplatePrinter struct {
-	version  string
 	template  *template.Template
+	version   string
+	convertor runtime.ObjectConvertor
 }
 
-func NewTemplatePrinter(version string, tmpl []byte) (*TemplatePrinter, error) {
+func NewTemplatePrinter(tmpl []byte, asVersion string, convertor runtime.ObjectConvertor) (*TemplatePrinter, error) {
 	t, err := template.New("output").Parse(string(tmpl))
 	if err != nil {
 		return nil, err
 	}
-	return &TemplatePrinter{version, t}, nil
+	return &TemplatePrinter{t, asVersion, convertor}, nil
 }
 
-// IsVersioned returns true.
-func (*TemplatePrinter) IsVersioned() bool { return true }
-
 // PrintObj formats the obj with the Go Template.
-func (t *TemplatePrinter) PrintObj(obj runtime.Object, w io.Writer) error {
+func (p *TemplatePrinter) PrintObj(obj runtime.Object, w io.Writer) error {
-	outObj, err := toVersionedMap(t.version, obj)
+	outObj, err := p.convertor.ConvertToVersion(obj, p.version)
 	if err != nil {
 		return err
 	}
-	return t.template.Execute(w, outObj)
+	data, err := json.Marshal(outObj)
+	if err != nil {
+		return err
+	}
+	out := map[string]interface{}{}
+	if err := json.Unmarshal(data, &out); err != nil {
+		return err
+	}
+	return p.template.Execute(w, out)
 }
 
 func tabbedString(f func(io.Writer) error) (string, error) {

pkg/kubectl/resource_printer_test.go

@@ -25,7 +25,8 @@ import (
 	"testing"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/testapi"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
 
 	"gopkg.in/v1/yaml"
@@ -42,11 +43,9 @@ type testStruct struct {
 
 func (ts *testStruct) IsAnAPIObject() {}
 
-const TestVersion = latest.Version
-
 func init() {
 	api.Scheme.AddKnownTypes("", &testStruct{})
-	api.Scheme.AddKnownTypes(TestVersion, &testStruct{})
+	api.Scheme.AddKnownTypes(testapi.Version(), &testStruct{})
 }
 
 var testData = testStruct{
@@ -57,21 +56,67 @@ var testData = testStruct{
 }
 
 func TestYAMLPrinter(t *testing.T) {
-	testPrinter(t, &YAMLPrinter{TestVersion}, yaml.Unmarshal)
+	testPrinter(t, &YAMLPrinter{testapi.Version(), api.Scheme}, yaml.Unmarshal)
 }
 
 func TestJSONPrinter(t *testing.T) {
-	testPrinter(t, &JSONPrinter{TestVersion}, json.Unmarshal)
+	testPrinter(t, &JSONPrinter{testapi.Version(), api.Scheme}, json.Unmarshal)
+}
+
+type internalType struct {
+	Name string
+	Kind string
+}
+
+type externalType struct {
+	Name string
+	Kind string `json:"kind"`
+}
+
+func (*internalType) IsAnAPIObject() {}
+func (*externalType) IsAnAPIObject() {}
+
+func newExternalScheme() *runtime.Scheme {
+	scheme := runtime.NewScheme()
+	scheme.AddKnownTypeWithName("", "Type", &internalType{})
+	scheme.AddKnownTypeWithName("unlikelyversion", "Type", &externalType{})
+	return scheme
+}
+
+func TestPrintJSONForUnknownSchema(t *testing.T) {
+	buf := bytes.NewBuffer([]byte{})
+	printer, err := GetPrinter("json", "", "unlikelyversion", newExternalScheme(), nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %#v", err)
+	}
+	if err := printer.PrintObj(&internalType{Name: "foo"}, buf); err != nil {
+		t.Fatalf("unexpected error: %#v", err)
+	}
+	obj := map[string]interface{}{}
+	if err := json.Unmarshal(buf.Bytes(), &obj); err != nil {
+		t.Fatalf("unexpected error: %#v\n%s", err, buf.String())
+	}
+	if obj["Name"] != "foo" {
+		t.Errorf("unexpected field: %#v", obj)
+	}
+}
+
+func TestPrintJSONForUnknownSchemaAndWrongVersion(t *testing.T) {
+	buf := bytes.NewBuffer([]byte{})
+	printer, err := GetPrinter("json", "", "badversion", newExternalScheme(), nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %#v", err)
+	}
+	if err := printer.PrintObj(&internalType{Name: "foo"}, buf); err == nil {
+		t.Errorf("unexpected non-error")
+	}
 }
 
 func TestPrintJSON(t *testing.T) {
 	buf := bytes.NewBuffer([]byte{})
-	printer, err := GetPrinter(TestVersion, "json", "", nil)
+	printer, err := GetPrinter("json", "", testapi.Version(), api.Scheme, nil)
 	if err != nil {
-		t.Errorf("unexpected error: %#v", err)
+		t.Fatalf("unexpected error: %#v", err)
-	}
-	if !printer.IsVersioned() {
-		t.Errorf("printer should be versioned")
 	}
 	printer.PrintObj(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}, buf)
 	obj := map[string]interface{}{}
@@ -82,12 +127,9 @@ func TestPrintJSON(t *testing.T) {
 
 func TestPrintYAML(t *testing.T) {
 	buf := bytes.NewBuffer([]byte{})
-	printer, err := GetPrinter(TestVersion, "yaml", "", nil)
+	printer, err := GetPrinter("yaml", "", testapi.Version(), api.Scheme, nil)
 	if err != nil {
-		t.Errorf("unexpected error: %#v", err)
+		t.Fatalf("unexpected error: %#v", err)
-	}
-	if !printer.IsVersioned() {
-		t.Errorf("printer should be versioned")
 	}
 	printer.PrintObj(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}, buf)
 	obj := map[string]interface{}{}
@@ -98,13 +140,10 @@ func TestPrintYAML(t *testing.T) {
 
 func TestPrintTemplate(t *testing.T) {
 	buf := bytes.NewBuffer([]byte{})
-	printer, err := GetPrinter(TestVersion, "template", "{{.id}}", nil)
+	printer, err := GetPrinter("template", "{{.id}}", "v1beta1", api.Scheme, nil)
 	if err != nil {
 		t.Fatalf("unexpected error: %#v", err)
 	}
-	if !printer.IsVersioned() {
-		t.Errorf("printer should be versioned")
-	}
 	err = printer.PrintObj(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}, buf)
 	if err != nil {
 		t.Fatalf("unexpected error: %#v", err)
@@ -115,19 +154,19 @@ func TestPrintTemplate(t *testing.T) {
 }
 
 func TestPrintEmptyTemplate(t *testing.T) {
-	if _, err := GetPrinter(TestVersion, "template", "", nil); err == nil {
+	if _, err := GetPrinter("template", "", testapi.Version(), api.Scheme, nil); err == nil {
 		t.Errorf("unexpected non-error")
 	}
 }
 
 func TestPrintBadTemplate(t *testing.T) {
-	if _, err := GetPrinter(TestVersion, "template", "{{ .Name", nil); err == nil {
+	if _, err := GetPrinter("template", "{{ .Name", testapi.Version(), api.Scheme, nil); err == nil {
 		t.Errorf("unexpected non-error")
 	}
 }
 
 func TestPrintBadTemplateFile(t *testing.T) {
-	if _, err := GetPrinter(TestVersion, "templatefile", "", nil); err == nil {
+	if _, err := GetPrinter("templatefile", "", testapi.Version(), api.Scheme, nil); err == nil {
 		t.Errorf("unexpected non-error")
 	}
 }
@@ -147,7 +186,7 @@ func testPrinter(t *testing.T, printer ResourcePrinter, unmarshalFunc func(data
 	}
 	// Use real decode function to undo the versioning process.
 	poutput = testStruct{}
-	err = latest.Codec.DecodeInto(buf.Bytes(), &poutput)
+	err = testapi.Codec().DecodeInto(buf.Bytes(), &poutput)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -164,11 +203,11 @@ func testPrinter(t *testing.T, printer ResourcePrinter, unmarshalFunc func(data
 	// Verify that given function runs without error.
 	err = unmarshalFunc(buf.Bytes(), &objOut)
 	if err != nil {
-		t.Errorf("Unexpeted error: %#v", err)
+		t.Fatalf("unexpected error: %#v", err)
 	}
 	// Use real decode function to undo the versioning process.
 	objOut = api.Pod{}
-	err = latest.Codec.DecodeInto(buf.Bytes(), &objOut)
+	err = testapi.Codec().DecodeInto(buf.Bytes(), &objOut)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -205,7 +244,7 @@ func TestCustomTypePrinting(t *testing.T) {
 	buffer := &bytes.Buffer{}
 	err := printer.PrintObj(&obj, buffer)
 	if err != nil {
-		t.Errorf("An error occurred printing the custom type: %#v", err)
+		t.Fatalf("An error occurred printing the custom type: %#v", err)
 	}
 	expectedOutput := "Data\ntest object"
 	if buffer.String() != expectedOutput {
@@ -236,7 +275,7 @@ func TestUnknownTypePrinting(t *testing.T) {
 
 func TestTemplateEmitsVersionedObjects(t *testing.T) {
 	// kind is always blank in memory and set on the wire
-	printer, err := NewTemplatePrinter(TestVersion, []byte(`{{.kind}}`))
+	printer, err := NewTemplatePrinter([]byte(`{{.kind}}`), testapi.Version(), api.Scheme)
 	if err != nil {
 		t.Fatalf("tmpl fail: %v", err)
 	}