mirror of
https://github.com/kubernetes/client-go.git
synced 2025-10-29 21:01:16 +00:00
102 lines
3.9 KiB
Go
102 lines
3.9 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubernetes_test
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import (
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"context"
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"testing"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/kubernetes/scheme"
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"k8s.io/client-go/util/watchlist"
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)
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func TestDoesClientSupportWatchListSemantics(t *testing.T) {
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target := fake.NewClientset()
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if !watchlist.DoesClientNotSupportWatchListSemantics(target) {
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t.Fatalf("NewSimpleClientset should NOT support WatchList semantics")
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}
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}
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// This test proves that the kube fake client does not return GVKs. This is consistent with actual client (see tests below)
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// and should not be changed unless the decoding behavior and somehow literal creation (`&corev1.ConfigMap{}`) behavior change.
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func Test_ConfigMapFakeClient(t *testing.T) {
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fakeKubeClient := fake.NewSimpleClientset(&corev1.ConfigMap{ObjectMeta: metav1.ObjectMeta{Namespace: "foo-ns", Name: "foo-name"}})
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cm, err := fakeKubeClient.CoreV1().ConfigMaps("foo-ns").Get(context.TODO(), "foo-name", metav1.GetOptions{})
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if err != nil {
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t.Fatal(err)
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}
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if cm.GetObjectKind().GroupVersionKind() != (schema.GroupVersionKind{}) {
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t.Fatal(cm.GetObjectKind().GroupVersionKind())
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}
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cmList, err := fakeKubeClient.CoreV1().ConfigMaps("foo-ns").List(context.TODO(), metav1.ListOptions{})
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if err != nil {
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t.Fatal(err)
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}
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if cmList.GetObjectKind().GroupVersionKind() != (schema.GroupVersionKind{}) {
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t.Fatal(cmList.GetObjectKind().GroupVersionKind())
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}
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}
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// This test checks decoding behavior for the actual client to ensure the fake client (tested above) is consistent.
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func TestGetDecoding(t *testing.T) {
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// this the duplication of logic from the real Get API for configmaps. This will prove that the generated client will not return a GVK
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mediaTypes := scheme.Codecs.WithoutConversion().SupportedMediaTypes()
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info, ok := runtime.SerializerInfoForMediaType(mediaTypes, "application/json")
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if !ok {
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t.Fatal("missing serializer")
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}
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decoder := scheme.Codecs.WithoutConversion().DecoderToVersion(info.Serializer, corev1.SchemeGroupVersion)
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body := []byte(`{"apiVersion": "v1", "kind": "ConfigMap", "metadata":{"Namespace":"foo","Name":"bar"}}`)
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obj := &corev1.ConfigMap{}
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out, _, err := decoder.Decode(body, nil, obj)
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if err != nil || out != obj {
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t.Fatal(err)
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}
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if obj.GetObjectKind().GroupVersionKind() != (schema.GroupVersionKind{}) {
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t.Fatal(obj.GetObjectKind().GroupVersionKind())
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}
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}
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// This test checks decoding behavior for the actual client to ensure the fake client (tested above) is consistent.
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func TestListDecoding(t *testing.T) {
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// this the duplication of logic from the real Get API for configmaps. This will prove that the generated client will not return a GVK
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mediaTypes := scheme.Codecs.WithoutConversion().SupportedMediaTypes()
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info, ok := runtime.SerializerInfoForMediaType(mediaTypes, "application/json")
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if !ok {
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t.Fatal("missing serializer")
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}
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decoder := scheme.Codecs.WithoutConversion().DecoderToVersion(info.Serializer, corev1.SchemeGroupVersion)
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body := []byte(`{"apiVersion": "v1", "kind": "ConfigMapList", "items":[]}`)
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obj := &corev1.ConfigMapList{}
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out, _, err := decoder.Decode(body, nil, obj)
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if err != nil || out != obj {
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t.Fatal(err)
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}
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if obj.GetObjectKind().GroupVersionKind() != (schema.GroupVersionKind{}) {
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t.Fatal(obj.GetObjectKind().GroupVersionKind())
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}
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}
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