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/*
Copyright 2019 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 handlers
import (
"context"
"fmt"
"io"
"net/http"
"reflect"
"testing"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
examplev1 "k8s.io/apiserver/pkg/apis/example/v1"
"k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
"k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
)
var _ runtime.CacheableObject = &mockCacheableObject{}
type mockCacheableObject struct {
gvk schema.GroupVersionKind
obj runtime.Object
}
// DeepCopyObject implements runtime.Object interface.
func (m *mockCacheableObject) DeepCopyObject() runtime.Object {
panic("DeepCopy unimplemented for mockCacheableObject")
}
// GetObjectKind implements runtime.Object interface.
func (m *mockCacheableObject) GetObjectKind() schema.ObjectKind {
return m
}
// GroupVersionKind implements schema.ObjectKind interface.
func (m *mockCacheableObject) GroupVersionKind() schema.GroupVersionKind {
return m.gvk
}
// SetGroupVersionKind implements schema.ObjectKind interface.
func (m *mockCacheableObject) SetGroupVersionKind(gvk schema.GroupVersionKind) {
m.gvk = gvk
}
// CacheEncode implements runtime.CacheableObject interface.
func (m *mockCacheableObject) CacheEncode(id runtime.Identifier, encode func(runtime.Object, io.Writer) error, w io.Writer) error {
return fmt.Errorf("unimplemented")
}
// GetObject implements runtime.CacheableObject interface.
func (m *mockCacheableObject) GetObject() runtime.Object {
return m.obj
}
type mockNamer struct{}
func (*mockNamer) Namespace(_ *http.Request) (string, error) { return "", nil }
func (*mockNamer) Name(_ *http.Request) (string, string, error) { return "", "", nil }
func (*mockNamer) ObjectName(_ runtime.Object) (string, string, error) { return "", "", nil }
func (*mockNamer) SetSelfLink(_ runtime.Object, _ string) error { return nil }
func (*mockNamer) GenerateLink(_ *request.RequestInfo, _ runtime.Object) (string, error) {
return "", nil
}
func (*mockNamer) GenerateListLink(_ *http.Request) (string, error) { return "", nil }
func TestCacheableObject(t *testing.T) {
pomGVK := metav1.SchemeGroupVersion.WithKind("PartialObjectMetadata")
tableGVK := metav1.SchemeGroupVersion.WithKind("Table")
status := &metav1.Status{Status: "status"}
pod := &examplev1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "name",
Namespace: "namespace",
},
}
podMeta := &metav1.PartialObjectMetadata{
ObjectMeta: metav1.ObjectMeta{
Name: "name",
Namespace: "namespace",
},
}
podMeta.GetObjectKind().SetGroupVersionKind(pomGVK)
podTable := &metav1.Table{
Rows: []metav1.TableRow{
{
Cells: []interface{}{pod.Name, pod.CreationTimestamp.Time.UTC().Format(time.RFC3339)},
},
},
}
tableConvertor := rest.NewDefaultTableConvertor(examplev1.Resource("Pod"))
testCases := []struct {
desc string
object runtime.Object
opts *metav1beta1.TableOptions
mediaType negotiation.MediaTypeOptions
expectedUnwrap bool
expectedObj runtime.Object
expectedErr error
}{
{
desc: "metav1.Status",
object: status,
expectedObj: status,
expectedErr: nil,
},
{
desc: "cacheableObject nil convert",
object: &mockCacheableObject{obj: pod},
mediaType: negotiation.MediaTypeOptions{},
expectedObj: &mockCacheableObject{obj: pod},
expectedErr: nil,
},
{
desc: "cacheableObject as PartialObjectMeta",
object: &mockCacheableObject{obj: pod},
mediaType: negotiation.MediaTypeOptions{Convert: &pomGVK},
expectedObj: podMeta,
expectedErr: nil,
},
{
desc: "cacheableObject as Table",
object: &mockCacheableObject{obj: pod},
opts: &metav1beta1.TableOptions{NoHeaders: true, IncludeObject: metav1.IncludeNone},
mediaType: negotiation.MediaTypeOptions{Convert: &tableGVK},
expectedObj: podTable,
expectedErr: nil,
},
}
for _, test := range testCases {
t.Run(test.desc, func(t *testing.T) {
result, err := transformObject(
request.WithRequestInfo(context.TODO(), &request.RequestInfo{}),
test.object, test.opts, test.mediaType,
&RequestScope{
Namer: &mockNamer{},
TableConvertor: tableConvertor,
},
nil)
if err != test.expectedErr {
t.Errorf("unexpected error: %v, expected: %v", err, test.expectedErr)
}
if a, e := result, test.expectedObj; !reflect.DeepEqual(a, e) {
t.Errorf("unexpected result: %v, expected: %v", a, e)
}
})
}
}
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