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Merge pull request #84023 from seans3/printing-tests-cleanup

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Move GoTemplatePrinter tests to correct location
This commit is contained in:
Kubernetes Prow Robot 2019-10-22 23:19:32 -07:00 committed by GitHub
commit 2adadf9218
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 196 additions and 155 deletions
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149
pkg/printers/internalversion/additional_printers_test.go
View File

@ -202,22 +202,6 @@ func TestPrintHandlerError(t *testing.T) {
}
}
func TestTemplatePanic(t *testing.T) {
tmpl := `{{and ((index .currentState.info "foo").state.running.startedAt) .currentState.info.net.state.running.startedAt}}`
printer, err := genericprinters.NewGoTemplatePrinter([]byte(tmpl))
if err != nil {
t.Fatalf("tmpl fail: %v", err)
}
buffer := &bytes.Buffer{}
err = printer.PrintObj(&v1.Pod{}, buffer)
if err == nil {
t.Fatalf("expected that template to crash")
}
if buffer.String() == "" {
t.Errorf("no debugging info was printed")
}
}
func TestNamePrinter(t *testing.T) {
tests := map[string]struct {
obj runtime.Object
@ -274,145 +258,15 @@ func TestNamePrinter(t *testing.T) {
}
}
// TODO(seans3): Move this test to cli-runtime/pkg/printers.
func TestTemplateStrings(t *testing.T) {
// This unit tests the "exists" function as well as the template from update.sh
table := map[string]struct {
pod v1.Pod
expect string
}{
"nilInfo": {v1.Pod{}, "false"},
"emptyInfo": {v1.Pod{Status: v1.PodStatus{ContainerStatuses: []v1.ContainerStatus{}}}, "false"},
"fooExists": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
},
},
},
},
"false",
},
"barExists": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "bar",
},
},
},
},
"false",
},
"bothExist": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
},
{
Name: "bar",
},
},
},
},
"false",
},
"barValid": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
},
{
Name: "bar",
State: v1.ContainerState{
Running: &v1.ContainerStateRunning{
StartedAt: metav1.Time{},
},
},
},
},
},
},
"false",
},
"bothValid": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
State: v1.ContainerState{
Running: &v1.ContainerStateRunning{
StartedAt: metav1.Time{},
},
},
},
{
Name: "bar",
State: v1.ContainerState{
Running: &v1.ContainerStateRunning{
StartedAt: metav1.Time{},
},
},
},
},
},
},
"true",
},
}
// The point of this test is to verify that the below template works.
tmpl := `{{if (exists . "status" "containerStatuses")}}{{range .status.containerStatuses}}{{if (and (eq .name "foo") (exists . "state" "running"))}}true{{end}}{{end}}{{end}}`
printer, err := genericprinters.NewGoTemplatePrinter([]byte(tmpl))
if err != nil {
t.Fatalf("tmpl fail: %v", err)
}
for name, item := range table {
buffer := &bytes.Buffer{}
err = printer.PrintObj(&item.pod, buffer)
if err != nil {
t.Errorf("%v: unexpected err: %v", name, err)
continue
}
actual := buffer.String()
if len(actual) == 0 {
actual = "false"
}
if e := item.expect; e != actual {
t.Errorf("%v: expected %v, got %v", name, e, actual)
}
}
}
// TODO(seans3): Move this test to cli-runtime/pkg/printers.
func TestPrinters(t *testing.T) {
om := func(name string) metav1.ObjectMeta { return metav1.ObjectMeta{Name: name} }
var (
err error
templatePrinter printers.ResourcePrinter
templatePrinter2 printers.ResourcePrinter
jsonpathPrinter printers.ResourcePrinter
)
templatePrinter, err = genericprinters.NewGoTemplatePrinter([]byte("{{.name}}"))
if err != nil {
t.Fatal(err)
}
templatePrinter2, err = genericprinters.NewGoTemplatePrinter([]byte("{{len .items}}"))
if err != nil {
t.Fatal(err)
}
jsonpathPrinter, err = genericprinters.NewJSONPathPrinter("{.metadata.name}")
if err != nil {
t.Fatal(err)
@ -422,8 +276,6 @@ func TestPrinters(t *testing.T) {
// TODO(juanvallejo): move "generic printer" tests to pkg/kubectl/genericclioptions/printers
"json": genericprinters.NewTypeSetter(legacyscheme.Scheme).ToPrinter(&genericprinters.JSONPrinter{}),
"yaml": genericprinters.NewTypeSetter(legacyscheme.Scheme).ToPrinter(&genericprinters.YAMLPrinter{}),
"template": templatePrinter,
"template2": templatePrinter2,
"jsonpath": jsonpathPrinter,
}
objects := map[string]runtime.Object{
@ -438,7 +290,6 @@ func TestPrinters(t *testing.T) {
}
// map of printer name to set of objects it should fail on.
expectedErrors := map[string]sets.String{
"template2": sets.NewString("pod", "emptyPodList", "endpoints"),
"jsonpath": sets.NewString("emptyPodList", "nonEmptyPodList", "endpoints"),
}

1
staging/src/k8s.io/cli-runtime/pkg/printers/BUILD
View File

@ -37,6 +37,7 @@ go_test(
embed = [":go_default_library"],
deps = [
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
],
)

189
staging/src/k8s.io/cli-runtime/pkg/printers/template_test.go
View File

@ -22,6 +22,7 @@ import (
"testing"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
)
@ -108,3 +109,191 @@ type badlyMarshaledSecret struct {
func (a badlyMarshaledSecret) MarshalJSON() ([]byte, error) {
return []byte(`{"apiVersion":"v1","data":{"username":"--THIS IS NOT BASE64--"},"kind":"Secret"}`), nil
}
func TestTemplateStrings(t *testing.T) {
// This unit tests the "exists" function as well as the template from update.sh
table := map[string]struct {
pod v1.Pod
expect string
}{
"nilInfo": {v1.Pod{}, "false"},
"emptyInfo": {v1.Pod{Status: v1.PodStatus{ContainerStatuses: []v1.ContainerStatus{}}}, "false"},
"fooExists": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
},
},
},
},
"false",
},
"barExists": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "bar",
},
},
},
},
"false",
},
"bothExist": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
},
{
Name: "bar",
},
},
},
},
"false",
},
"barValid": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
},
{
Name: "bar",
State: v1.ContainerState{
Running: &v1.ContainerStateRunning{
StartedAt: metav1.Time{},
},
},
},
},
},
},
"false",
},
"bothValid": {
v1.Pod{
Status: v1.PodStatus{
ContainerStatuses: []v1.ContainerStatus{
{
Name: "foo",
State: v1.ContainerState{
Running: &v1.ContainerStateRunning{
StartedAt: metav1.Time{},
},
},
},
{
Name: "bar",
State: v1.ContainerState{
Running: &v1.ContainerStateRunning{
StartedAt: metav1.Time{},
},
},
},
},
},
},
"true",
},
}
// The point of this test is to verify that the below template works.
tmpl := `{{if (exists . "status" "containerStatuses")}}{{range .status.containerStatuses}}{{if (and (eq .name "foo") (exists . "state" "running"))}}true{{end}}{{end}}{{end}}`
printer, err := NewGoTemplatePrinter([]byte(tmpl))
if err != nil {
t.Fatalf("tmpl fail: %v", err)
}
for name, item := range table {
buffer := &bytes.Buffer{}
err = printer.PrintObj(&item.pod, buffer)
if err != nil {
t.Errorf("%v: unexpected err: %v", name, err)
continue
}
actual := buffer.String()
if len(actual) == 0 {
actual = "false"
}
if e := item.expect; e != actual {
t.Errorf("%v: expected %v, got %v", name, e, actual)
}
}
}
func TestTemplatePanic(t *testing.T) {
tmpl := `{{and ((index .currentState.info "foo").state.running.startedAt) .currentState.info.net.state.running.startedAt}}`
printer, err := NewGoTemplatePrinter([]byte(tmpl))
if err != nil {
t.Fatalf("tmpl fail: %v", err)
}
buffer := &bytes.Buffer{}
err = printer.PrintObj(&v1.Pod{}, buffer)
if err == nil {
t.Fatalf("expected that template to crash")
}
if buffer.String() == "" {
t.Errorf("no debugging info was printed")
}
}
func TestTemplateSuccess(t *testing.T) {
templatePrinter, err := NewGoTemplatePrinter([]byte("{{.name}}"))
if err != nil {
t.Fatal(err)
}
// Template printer should succeed on these resources.
om := func(name string) metav1.ObjectMeta { return metav1.ObjectMeta{Name: name} }
objects := []runtime.Object{
&v1.Pod{ObjectMeta: om("pod")},
&v1.PodList{},
&v1.PodList{Items: []v1.Pod{{}}},
&v1.Endpoints{
Subsets: []v1.EndpointSubset{{
Addresses: []v1.EndpointAddress{{IP: "127.0.0.1"}, {IP: "localhost"}},
Ports: []v1.EndpointPort{{Port: 8080}},
}}},
}
for _, obj := range objects {
b := &bytes.Buffer{}
if err := templatePrinter.PrintObj(obj, b); err != nil {
t.Errorf("Unexpected template error: %v", err)
}
}
}
func TestTemplateErrors(t *testing.T) {
templatePrinter, err := NewGoTemplatePrinter([]byte("{{len .items}}"))
if err != nil {
t.Fatal(err)
}
// Template printer should fail on these resources.
om := func(name string) metav1.ObjectMeta { return metav1.ObjectMeta{Name: name} }
objects := []runtime.Object{
&v1.Pod{ObjectMeta: om("pod")},
&v1.PodList{},
&v1.Endpoints{
Subsets: []v1.EndpointSubset{{
Addresses: []v1.EndpointAddress{{IP: "127.0.0.1"}, {IP: "localhost"}},
Ports: []v1.EndpointPort{{Port: 8080}},
}}},
}
for _, obj := range objects {
b := &bytes.Buffer{}
if err := templatePrinter.PrintObj(obj, b); err == nil {
t.Errorf("Expected template printer error; received none")
}
}
}