kubernetes/pkg/util/pod/pod_test.go
Michal Wozniak 04fcbd721c Introduction of a pod condition type indicating disruption. Its reason field indicates the reason:
- PreemptionByKubeScheduler (Pod preempted by kube-scheduler)
- DeletionByTaintManager (Pod deleted by taint manager due to NoExecute taint)
- EvictionByEvictionAPI (Pod evicted by Eviction API)
- DeletionByPodGC (an orphaned Pod deleted by PodGC)PreemptedByScheduler (Pod preempted by kube-scheduler)
2022-08-02 11:12:16 +02:00

131 lines
3.3 KiB
Go

/*
Copyright 2018 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 pod
import (
"context"
"fmt"
"testing"
"reflect"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/kubernetes/fake"
)
func TestPatchPodStatus(t *testing.T) {
ns := "ns"
name := "name"
uid := types.UID("myuid")
client := &fake.Clientset{}
client.CoreV1().Pods(ns).Create(context.TODO(), &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: ns,
Name: name,
},
}, metav1.CreateOptions{})
testCases := []struct {
description string
mutate func(input v1.PodStatus) v1.PodStatus
expectUnchanged bool
expectedPatchBytes []byte
}{
{
"no change",
func(input v1.PodStatus) v1.PodStatus { return input },
true,
[]byte(fmt.Sprintf(`{"metadata":{"uid":"myuid"}}`)),
},
{
"message change",
func(input v1.PodStatus) v1.PodStatus {
input.Message = "random message"
return input
},
false,
[]byte(fmt.Sprintf(`{"metadata":{"uid":"myuid"},"status":{"message":"random message"}}`)),
},
{
"pod condition change",
func(input v1.PodStatus) v1.PodStatus {
input.Conditions[0].Status = v1.ConditionFalse
return input
},
false,
[]byte(fmt.Sprintf(`{"metadata":{"uid":"myuid"},"status":{"$setElementOrder/conditions":[{"type":"Ready"},{"type":"PodScheduled"}],"conditions":[{"status":"False","type":"Ready"}]}}`)),
},
{
"additional init container condition",
func(input v1.PodStatus) v1.PodStatus {
input.InitContainerStatuses = []v1.ContainerStatus{
{
Name: "init-container",
Ready: true,
},
}
return input
},
false,
[]byte(fmt.Sprintf(`{"metadata":{"uid":"myuid"},"status":{"initContainerStatuses":[{"image":"","imageID":"","lastState":{},"name":"init-container","ready":true,"restartCount":0,"state":{}}]}}`)),
},
}
for _, tc := range testCases {
t.Run(tc.description, func(t *testing.T) {
_, patchBytes, unchanged, err := PatchPodStatus(context.TODO(), client, ns, name, uid, getPodStatus(), tc.mutate(getPodStatus()))
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if unchanged != tc.expectUnchanged {
t.Errorf("unexpected change: %t", unchanged)
}
if !reflect.DeepEqual(patchBytes, tc.expectedPatchBytes) {
t.Errorf("expect patchBytes: %q, got: %q\n", tc.expectedPatchBytes, patchBytes)
}
})
}
}
func getPodStatus() v1.PodStatus {
return v1.PodStatus{
Phase: v1.PodRunning,
Conditions: []v1.PodCondition{
{
Type: v1.PodReady,
Status: v1.ConditionTrue,
},
{
Type: v1.PodScheduled,
Status: v1.ConditionTrue,
},
},
ContainerStatuses: []v1.ContainerStatus{
{
Name: "container1",
Ready: true,
},
{
Name: "container2",
Ready: true,
},
},
Message: "Message",
}
}