mirror of
https://github.com/kubernetes/client-go.git
synced 2025-07-20 18:10:24 +00:00
131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
/*
|
|
Copyright 2014 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 watch
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"testing"
|
|
"time"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
apiequality "k8s.io/apimachinery/pkg/api/equality"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
runtimejson "k8s.io/apimachinery/pkg/runtime/serializer/json"
|
|
"k8s.io/apimachinery/pkg/runtime/serializer/streaming"
|
|
"k8s.io/apimachinery/pkg/util/wait"
|
|
"k8s.io/apimachinery/pkg/watch"
|
|
"k8s.io/client-go/kubernetes/scheme"
|
|
)
|
|
|
|
// getDecoder mimics how k8s.io/client-go/rest.createSerializers creates a decoder
|
|
func getDecoder() runtime.Decoder {
|
|
jsonSerializer := runtimejson.NewSerializerWithOptions(runtimejson.DefaultMetaFactory, scheme.Scheme, scheme.Scheme, runtimejson.SerializerOptions{})
|
|
directCodecFactory := scheme.Codecs.WithoutConversion()
|
|
return directCodecFactory.DecoderToVersion(jsonSerializer, v1.SchemeGroupVersion)
|
|
}
|
|
|
|
func TestDecoder(t *testing.T) {
|
|
table := []watch.EventType{watch.Added, watch.Deleted, watch.Modified, watch.Error, watch.Bookmark}
|
|
|
|
for _, eventType := range table {
|
|
out, in := io.Pipe()
|
|
|
|
decoder := NewDecoder(streaming.NewDecoder(out, getDecoder()), getDecoder())
|
|
expect := &v1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
|
|
encoder := json.NewEncoder(in)
|
|
eType := eventType
|
|
errc := make(chan error)
|
|
|
|
go func() {
|
|
data, err := runtime.Encode(scheme.Codecs.LegacyCodec(v1.SchemeGroupVersion), expect)
|
|
if err != nil {
|
|
errc <- fmt.Errorf("Unexpected error %v", err)
|
|
return
|
|
}
|
|
event := metav1.WatchEvent{
|
|
Type: string(eType),
|
|
Object: runtime.RawExtension{Raw: json.RawMessage(data)},
|
|
}
|
|
if err := encoder.Encode(&event); err != nil {
|
|
t.Errorf("Unexpected error %v", err)
|
|
}
|
|
in.Close()
|
|
}()
|
|
|
|
done := make(chan struct{})
|
|
go func() {
|
|
action, got, err := decoder.Decode()
|
|
if err != nil {
|
|
errc <- fmt.Errorf("Unexpected error %v", err)
|
|
return
|
|
}
|
|
if e, a := eType, action; e != a {
|
|
t.Errorf("Expected %v, got %v", e, a)
|
|
}
|
|
if e, a := expect, got; !apiequality.Semantic.DeepDerivative(e, a) {
|
|
t.Errorf("Expected %v, got %v", e, a)
|
|
}
|
|
t.Logf("Exited read")
|
|
close(done)
|
|
}()
|
|
select {
|
|
case err := <-errc:
|
|
t.Fatal(err)
|
|
case <-done:
|
|
}
|
|
|
|
done = make(chan struct{})
|
|
go func() {
|
|
_, _, err := decoder.Decode()
|
|
if err == nil {
|
|
t.Errorf("Unexpected nil error")
|
|
}
|
|
close(done)
|
|
}()
|
|
<-done
|
|
|
|
decoder.Close()
|
|
}
|
|
}
|
|
|
|
func TestDecoder_SourceClose(t *testing.T) {
|
|
out, in := io.Pipe()
|
|
decoder := NewDecoder(streaming.NewDecoder(out, getDecoder()), getDecoder())
|
|
|
|
done := make(chan struct{})
|
|
|
|
go func() {
|
|
_, _, err := decoder.Decode()
|
|
if err == nil {
|
|
t.Errorf("Unexpected nil error")
|
|
}
|
|
close(done)
|
|
}()
|
|
|
|
in.Close()
|
|
|
|
select {
|
|
case <-done:
|
|
break
|
|
case <-time.After(wait.ForeverTestTimeout):
|
|
t.Error("Timeout")
|
|
}
|
|
}
|