operator/pkg/tasks: unit test apiserver
In this commit, we introduce unit tests for the apiserver init task in the operator pkg by testing the running and waiting operations on Karmada API Server and Karmada Aggregated API Server. Signed-off-by: Mohamed Awnallah <mohamedmohey2352@gmail.com>
This commit is contained in:
Mohamed Awnallah
parent
c16e52a3ec
commit
ecdc909505
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@ -0,0 +1,449 @@
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/*
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Copyright 2024 The Karmada 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 tasks
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import (
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"fmt"
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"strings"
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"testing"
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"time"
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corev1 "k8s.io/api/core/v1"
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fakeclientset "k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/rest"
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"k8s.io/utils/ptr"
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operatorv1alpha1 "github.com/karmada-io/karmada/operator/pkg/apis/operator/v1alpha1"
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"github.com/karmada-io/karmada/operator/pkg/constants"
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"github.com/karmada-io/karmada/operator/pkg/util"
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"github.com/karmada-io/karmada/operator/pkg/util/apiclient"
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"github.com/karmada-io/karmada/operator/pkg/workflow"
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)
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func TestNewAPIServerTask(t *testing.T) {
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tests := []struct {
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name string
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wantTask workflow.Task
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}{
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{
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name: "NewKarmadaApiserverTask_IsCalled_ExpectedWorkflowTask",
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wantTask: workflow.Task{
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Name: "apiserver",
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Run: runApiserver,
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RunSubTasks: true,
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Tasks: []workflow.Task{
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{
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Name: constants.KarmadaAPIserverComponent,
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Run: runKarmadaAPIServer,
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},
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{
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Name: fmt.Sprintf("%s-%s", "wait", constants.KarmadaAPIserverComponent),
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Run: runWaitKarmadaAPIServer,
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},
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},
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},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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karmadaAPIServerTask := NewKarmadaApiserverTask()
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err := util.DeepEqualTasks(karmadaAPIServerTask, test.wantTask)
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if err != nil {
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t.Errorf("unexpected error, got %v", err)
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}
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})
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}
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}
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func TestNewKarmadaAggregatedApiserverTask(t *testing.T) {
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tests := []struct {
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name string
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wantTask workflow.Task
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}{
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{
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name: "NewKarmadaAggregatedApiserverTask_IsCalled_ExpectedWorkflowTask",
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wantTask: workflow.Task{
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Name: "aggregated-apiserver",
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Run: runAggregatedApiserver,
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RunSubTasks: true,
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Tasks: []workflow.Task{
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{
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Name: constants.KarmadaAggregatedAPIServerComponent,
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Run: runKarmadaAggregatedAPIServer,
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},
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{
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Name: fmt.Sprintf("%s-%s", "wait", constants.KarmadaAggregatedAPIServerComponent),
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Run: runWaitKarmadaAggregatedAPIServer,
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},
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},
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},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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karmadaAggregatedAPIServerTask := NewKarmadaAggregatedApiserverTask()
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err := util.DeepEqualTasks(karmadaAggregatedAPIServerTask, test.wantTask)
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if err != nil {
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t.Errorf("unexpected error, got %v", err)
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}
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})
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}
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}
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func TestRunAggregatedAPIServer(t *testing.T) {
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tests := []struct {
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name string
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runData workflow.RunData
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wantErr bool
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errMsg string
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}{
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{
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name: "RunAggregatedApiserver_InvalidTypeAssertion_TypeAssertionFailed",
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runData: MyTestData{Data: "test"},
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wantErr: true,
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errMsg: "aggregated-apiserver task invoked with an invalid data struct",
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},
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{
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name: "RunAggregatedApiserver_ValidTypeAssertion_TypeAssertionSuceeded",
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runData: &TestInitData{},
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wantErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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err := runAggregatedApiserver(test.runData)
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if err == nil && test.wantErr {
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t.Errorf("expected error, but got none")
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}
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if err != nil && !test.wantErr {
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t.Errorf("unexpected error: %v", err)
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}
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if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
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t.Errorf("expected %s error msg to contain %s", err.Error(), test.errMsg)
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}
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})
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}
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}
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func TestRunAPIServer(t *testing.T) {
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tests := []struct {
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name string
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runData workflow.RunData
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wantErr bool
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errMsg string
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}{
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{
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name: "RunAPIServer_InvalidTypeAssertion_TypeAssertionFailed",
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runData: MyTestData{Data: "test"},
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wantErr: true,
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errMsg: "apiserver task invoked with an invalid data struct",
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},
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{
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name: "RunAPIServer_ValidTypeAssertion_TypeAssertionSuceeded",
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runData: &TestInitData{},
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wantErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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err := runApiserver(test.runData)
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if err == nil && test.wantErr {
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t.Errorf("expected error, but got none")
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}
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if err != nil && !test.wantErr {
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t.Errorf("unexpected error: %v", err)
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}
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if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
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t.Errorf("expected %s error msg to contain %s", err.Error(), test.errMsg)
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}
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})
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}
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}
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func TestRunKarmadaAPIServer(t *testing.T) {
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tests := []struct {
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name string
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runData workflow.RunData
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wantErr bool
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errMsg string
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}{
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{
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name: "RunKarmadaAPIServer_InvalidTypeAssertion_TypeAssertionFailed",
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runData: &MyTestData{Data: "test"},
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wantErr: true,
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errMsg: "KarmadaApiserver task invoked with an invalid data struct",
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},
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{
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name: "RunKarmadaAPIServer_NilKarmadaAPIServer_RunIsCompletedWithoutErrors",
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runData: &TestInitData{
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ComponentsUnits: &operatorv1alpha1.KarmadaComponents{},
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},
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wantErr: false,
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},
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{
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name: "RunKarmadaAPIServer_InitializeKarmadaAPIServer_KarmadaAPIServerEnsured",
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runData: &TestInitData{
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Name: "karmada-demo",
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Namespace: "test",
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ComponentsUnits: &operatorv1alpha1.KarmadaComponents{
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KarmadaAPIServer: &operatorv1alpha1.KarmadaAPIServer{
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CommonSettings: operatorv1alpha1.CommonSettings{
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Image: operatorv1alpha1.Image{ImageTag: "karmada-apiserver-image"},
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Replicas: ptr.To[int32](2),
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Resources: corev1.ResourceRequirements{},
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ImagePullPolicy: corev1.PullIfNotPresent,
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},
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ServiceSubnet: ptr.To("10.96.0.0/12"),
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},
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},
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RemoteClientConnector: fakeclientset.NewSimpleClientset(),
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FeatureGatesOptions: map[string]bool{
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"Feature1": true,
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},
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},
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wantErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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err := runKarmadaAPIServer(test.runData)
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if err == nil && test.wantErr {
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t.Errorf("expected error, but got none")
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}
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if err != nil && !test.wantErr {
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t.Errorf("unexpected error: %v", err)
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}
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if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
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t.Errorf("expected %s error msg to contain %s", err.Error(), test.errMsg)
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}
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})
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}
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}
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func TestRunWaitKarmadaAPIServer(t *testing.T) {
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tests := []struct {
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name string
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runData workflow.RunData
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prep func(workflow.RunData) error
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wantErr bool
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errMsg string
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}{
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{
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name: "RunWaitKarmadaAPIServer_InvalidTypeAssertion_TypeAssertionFailed",
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runData: &MyTestData{Data: "test"},
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prep: func(workflow.RunData) error { return nil },
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wantErr: true,
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errMsg: "wait-KarmadaAPIServer task invoked with an invalid data struct",
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},
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{
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name: "RunWaitKarmadaAPIServer_TimeoutWaitingForSomeKarmadaAPIServersPods_Timeout",
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runData: &TestInitData{
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Name: "karmada-demo",
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Namespace: "test",
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RemoteClientConnector: fakeclientset.NewSimpleClientset(),
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ControlplaneConfigREST: &rest.Config{},
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FeatureGatesOptions: map[string]bool{
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"Feature1": true,
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},
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},
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prep: func(workflow.RunData) error {
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componentBeReadyTimeout = time.Second
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return nil
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},
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wantErr: true,
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errMsg: "waiting for karmada-apiserver to ready timeout",
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},
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{
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name: "RunWaitKarmadaAPIServer_WaitingForSomeKarmadaAPIServersPods_KarmadaAPIServerIsReady",
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runData: &TestInitData{
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Name: "karmada-demo",
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Namespace: "test",
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RemoteClientConnector: fakeclientset.NewSimpleClientset(),
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ControlplaneConfigREST: &rest.Config{},
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FeatureGatesOptions: map[string]bool{
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"Feature1": true,
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},
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},
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prep: func(rd workflow.RunData) error {
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data := rd.(*TestInitData)
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_, err := apiclient.CreatePods(data.RemoteClient(), data.Namespace, util.KarmadaAPIServerName(data.Name), 2, karmadaApiserverLabels, true)
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return err
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},
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wantErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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if err := test.prep(test.runData); err != nil {
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t.Errorf("failed to prep waiting for Karmada APIServer: %v", err)
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}
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err := runWaitKarmadaAPIServer(test.runData)
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if err == nil && test.wantErr {
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t.Errorf("expected error, but got none")
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}
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if err != nil && !test.wantErr {
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t.Errorf("unexpected error: %v", err)
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}
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if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
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t.Errorf("expected %s error msg to contain %s", err.Error(), test.errMsg)
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}
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})
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}
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}
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func TestRunKarmadaAggregatedAPIServer(t *testing.T) {
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tests := []struct {
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name string
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runData workflow.RunData
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prep func() error
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wantErr bool
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errMsg string
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}{
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{
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name: "RunKarmadaAggregatedAPIServer_InvalidTypeAssertion_TypeAssertionFailed",
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runData: &MyTestData{Data: "test"},
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prep: func() error { return nil },
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wantErr: true,
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errMsg: "KarmadaAggregatedAPIServer task invoked with an invalid data struct",
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},
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{
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name: "RunKarmadaAggregatedAPIServer_NilKarmadaAggregatedAPIServer_RunIsCompletedWithoutErrors",
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runData: &TestInitData{
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ComponentsUnits: &operatorv1alpha1.KarmadaComponents{},
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},
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prep: func() error { return nil },
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wantErr: false,
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},
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{
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name: "RunKarmadaAggregatedAPIServer_InitializeKarmadaAggregatedAPIServer_KarmadaAggregatedAPIServerEnsured",
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runData: &TestInitData{
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Name: "karmada-demo",
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Namespace: "test",
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ComponentsUnits: &operatorv1alpha1.KarmadaComponents{
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KarmadaAggregatedAPIServer: &operatorv1alpha1.KarmadaAggregatedAPIServer{
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CommonSettings: operatorv1alpha1.CommonSettings{
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Image: operatorv1alpha1.Image{ImageTag: "karmada-aggregated-apiserver-image"},
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Replicas: ptr.To[int32](2),
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Resources: corev1.ResourceRequirements{},
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ImagePullPolicy: corev1.PullIfNotPresent,
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},
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},
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},
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RemoteClientConnector: fakeclientset.NewSimpleClientset(),
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FeatureGatesOptions: map[string]bool{
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"Feature1": true,
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},
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},
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wantErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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err := runKarmadaAggregatedAPIServer(test.runData)
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if err == nil && test.wantErr {
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t.Errorf("expected error, but got none")
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}
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if err != nil && !test.wantErr {
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t.Errorf("unexpected error: %v", err)
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}
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if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
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t.Errorf("expected %s error msg to contain %s", err.Error(), test.errMsg)
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}
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})
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}
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}
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func TestRunWaitKarmadaAggregatedAPIServer(t *testing.T) {
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tests := []struct {
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name string
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runData workflow.RunData
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prep func(workflow.RunData) error
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wantErr bool
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errMsg string
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}{
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{
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name: "RunWaitKarmadaAggregatedAPIServer_InvalidTypeAssertion_TypeAssertionFailed",
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runData: &MyTestData{Data: "test"},
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prep: func(workflow.RunData) error {
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return nil
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},
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wantErr: true,
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errMsg: "wait-KarmadaAggregatedAPIServer task invoked with an invalid data struct",
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},
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{
|
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name: "RunWaitKarmadaAggregatedAPIServer_TimeoutWaitingForSomeKarmadaAggregatedAPIServersPods_Timeout",
|
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runData: &TestInitData{
|
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Name: "karmada-demo",
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Namespace: "test",
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RemoteClientConnector: fakeclientset.NewSimpleClientset(),
|
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ControlplaneConfigREST: &rest.Config{},
|
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FeatureGatesOptions: map[string]bool{
|
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"Feature1": true,
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},
|
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},
|
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prep: func(workflow.RunData) error {
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componentBeReadyTimeout = time.Second
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return nil
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},
|
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wantErr: true,
|
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errMsg: "waiting for karmada-aggregated-apiserver to ready timeout",
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},
|
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{
|
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name: "RunWaitKarmadaAggregatedAPIServer_WaitingForSomeKarmadaAggregatedAPIServersPods_KarmadaAggregatedAPIServerIsReady",
|
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runData: &TestInitData{
|
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Name: "karmada-demo",
|
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Namespace: "test",
|
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RemoteClientConnector: fakeclientset.NewSimpleClientset(),
|
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ControlplaneConfigREST: &rest.Config{},
|
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FeatureGatesOptions: map[string]bool{
|
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"Feature1": true,
|
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},
|
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},
|
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prep: func(rd workflow.RunData) error {
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data := rd.(*TestInitData)
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_, err := apiclient.CreatePods(data.RemoteClient(), data.Namespace, util.KarmadaAggregatedAPIServerName(data.Name), 2, karmadaAggregatedAPIServerLabels, true)
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return err
|
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},
|
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wantErr: false,
|
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},
|
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}
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|
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
|
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if err := test.prep(test.runData); err != nil {
|
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t.Errorf("failed to prep waiting for Karmada Aggregated APIServer: %v", err)
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}
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err := runWaitKarmadaAggregatedAPIServer(test.runData)
|
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if err == nil && test.wantErr {
|
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t.Errorf("expected error, but got none")
|
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}
|
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if err != nil && !test.wantErr {
|
||||
t.Errorf("unexpected error: %v", err)
|
||||
}
|
||||
if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
|
||||
t.Errorf("expected %s error msg to contain %s", err.Error(), test.errMsg)
|
||||
}
|
||||
})
|
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}
|
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}
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|
|
@ -0,0 +1,125 @@
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/*
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||||
Copyright 2024 The Karmada 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 apiclient
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
|
||||
corev1 "k8s.io/api/core/v1"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/client-go/discovery"
|
||||
clientset "k8s.io/client-go/kubernetes"
|
||||
"k8s.io/client-go/rest"
|
||||
)
|
||||
|
||||
// MockK8SRESTClient is a struct that implements clientset.Interface.
|
||||
type MockK8SRESTClient struct {
|
||||
clientset.Interface
|
||||
RESTClientConnector rest.Interface
|
||||
}
|
||||
|
||||
// Discovery returns a mocked discovery interface.
|
||||
func (m *MockK8SRESTClient) Discovery() discovery.DiscoveryInterface {
|
||||
return &MockDiscovery{
|
||||
RESTClientConnector: m.RESTClientConnector,
|
||||
}
|
||||
}
|
||||
|
||||
// MockDiscovery is a mock implementation of DiscoveryInterface.
|
||||
type MockDiscovery struct {
|
||||
discovery.DiscoveryInterface
|
||||
RESTClientConnector rest.Interface
|
||||
}
|
||||
|
||||
// RESTClient returns a restClientConnector that is used to communicate with API server
|
||||
// by this client implementation.
|
||||
func (m *MockDiscovery) RESTClient() rest.Interface {
|
||||
return m.RESTClientConnector
|
||||
}
|
||||
|
||||
// CreatePods creates a specified number of pods in the given namespace
|
||||
// with the provided component name and optional labels. It uses a
|
||||
// Kubernetes client to interact with the API and can mark the pods as
|
||||
// running if the `markRunningState` flag is set.
|
||||
//
|
||||
// Parameters:
|
||||
// - client: Kubernetes client interface for API requests.
|
||||
// - namespace: Namespace for pod creation.
|
||||
// - componentName: Base name for the pods and their containers.
|
||||
// - replicaCount: Number of pods to create.
|
||||
// - labels: Labels to apply to the pods.
|
||||
// - markRunningState: If true, updates the pods' status to running.
|
||||
//
|
||||
// Returns:
|
||||
// - A slice of pointers to corev1.Pod representing the created pods.
|
||||
// - An error if pod creation fails.
|
||||
func CreatePods(client clientset.Interface, namespace string, componentName string, replicaCount int32, labels map[string]string, markRunningState bool) ([]*corev1.Pod, error) {
|
||||
pods := make([]*corev1.Pod, 0, replicaCount)
|
||||
for i := int32(0); i < replicaCount; i++ {
|
||||
podName := fmt.Sprintf("%s-pod-%d", componentName, i)
|
||||
pod := &corev1.Pod{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: podName,
|
||||
Namespace: namespace,
|
||||
Labels: labels,
|
||||
},
|
||||
Spec: corev1.PodSpec{
|
||||
Containers: []corev1.Container{{
|
||||
Name: fmt.Sprintf("my-%s-container-%d", componentName, i),
|
||||
Image: fmt.Sprintf("my-%s-image:latest", componentName),
|
||||
Ports: []corev1.ContainerPort{{ContainerPort: 80}},
|
||||
}},
|
||||
},
|
||||
}
|
||||
_, err := client.CoreV1().Pods(namespace).Create(context.TODO(), pod, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to create pod %s: %w", podName, err)
|
||||
}
|
||||
|
||||
// Mark the pod as in running state if flag is set.
|
||||
if markRunningState {
|
||||
if err := UpdatePodStatus(client, pod); err != nil {
|
||||
return nil, fmt.Errorf("failed to update pod status, got err: %v", err)
|
||||
}
|
||||
}
|
||||
pods = append(pods, pod)
|
||||
}
|
||||
return pods, nil
|
||||
}
|
||||
|
||||
// UpdatePodStatus updates the status of a pod to PodRunning and sets the PodReady condition.
|
||||
func UpdatePodStatus(client clientset.Interface, pod *corev1.Pod) error {
|
||||
// Mark the pod as in running state.
|
||||
pod.Status = corev1.PodStatus{
|
||||
Phase: corev1.PodRunning,
|
||||
Conditions: []corev1.PodCondition{
|
||||
{
|
||||
Type: corev1.PodReady,
|
||||
Status: corev1.ConditionTrue,
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
// Update the pod status in the Kubernetes cluster.
|
||||
_, err := client.CoreV1().Pods(pod.GetNamespace()).UpdateStatus(context.TODO(), pod, metav1.UpdateOptions{})
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to update status of the pod %s: %w", pod.GetName(), err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in New Issue