add related ut for unregister

Signed-off-by: wulemao <[email protected]>

pkg/karmadactl/unregister/unregister.go

@@ -282,6 +282,10 @@ func (j *CommandUnregisterOption) getKarmadaAgentConfig(agent *appsv1.Deployment
 	if err != nil {
 		return nil, fmt.Errorf("failed to get the secret which stores the karmada agent config")
 	}
+	if len(agentConfigSecret.Data[fileName]) == 0 {
+		return nil, fmt.Errorf("empty data, secretName: %s, keyName: %s", agentConfigSecretName, fileName)
+	}
+
 	return clientcmd.Load(agentConfigSecret.Data[fileName])
 }
 

pkg/karmadactl/unregister/unregister_test.go

@@ -0,0 +1,234 @@
+/*
+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 unregister
+
+import (
+	"testing"
+	"time"
+
+	appsv1 "k8s.io/api/apps/v1"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/clientcmd"
+
+	clusterv1alpha1 "github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
+	fakekarmadaclient "github.com/karmada-io/karmada/pkg/generated/clientset/versioned/fake"
+	"github.com/karmada-io/karmada/pkg/karmadactl/register"
+)
+
+const (
+	clusterNamespace      = "default"
+	namespace             = "default"
+	clusterName           = "member_test"
+	agentConfigSecretName = "karmada-agent-config" //nolint:gosec
+	agentConfigKeyName    = "karmada.config"
+	agentSecretVolumeName = "karmada-config" //nolint:gosec
+)
+
+func TestCommandUnregisterOption_Complete_Validate(t *testing.T) {
+	tests := []struct {
+		name              string
+		args              []string
+		clusterKubeConfig string
+		wait              time.Duration
+		wantCompleteErr   bool
+		wantValidateErr   bool
+	}{
+		{
+			name:            "args more than one",
+			args:            []string{"member1", "member2"},
+			wantCompleteErr: false,
+			wantValidateErr: true,
+		},
+		{
+			name:            "invalid cluster name",
+			args:            []string{"member.1"},
+			wantCompleteErr: false,
+			wantValidateErr: true,
+		},
+		{
+			name:              "empty clusterKubeConfig",
+			args:              []string{"member1"},
+			clusterKubeConfig: "",
+			wantCompleteErr:   false,
+			wantValidateErr:   true,
+		},
+		{
+			name:              "negative wait time",
+			args:              []string{"member1"},
+			clusterKubeConfig: "./kube/config",
+			wait:              -1,
+			wantCompleteErr:   false,
+			wantValidateErr:   true,
+		},
+		{
+			name:              "normal case",
+			args:              []string{"member1"},
+			clusterKubeConfig: "./kube/config",
+			wait:              60 * time.Second,
+			wantCompleteErr:   false,
+			wantValidateErr:   false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			j := &CommandUnregisterOption{
+				ClusterKubeConfig: tt.clusterKubeConfig,
+				Wait:              tt.wait,
+			}
+
+			err := j.Complete(tt.args)
+			if (err == nil && tt.wantCompleteErr) || (err != nil && !tt.wantCompleteErr) {
+				t.Errorf("Complete() error = %v, wantCompleteErr %v", err, tt.wantCompleteErr)
+			}
+
+			err = j.Validate(tt.args)
+			if (err == nil && tt.wantValidateErr) || (err != nil && !tt.wantValidateErr) {
+				t.Errorf("Validate() error = %v, wantValidateErr %v", err, tt.wantValidateErr)
+			}
+		})
+	}
+}
+
+func TestCommandUnregisterOption_getKarmadaAgentConfig(t *testing.T) {
+	agentConfig := register.CreateBasic("http://127.0.0.1:5443", clusterName, "test", nil)
+	agentConfigBytes, _ := clientcmd.Write(*agentConfig)
+	agentConfigSecret := createSecret(agentConfigSecretName, namespace, agentConfigKeyName, agentConfigBytes)
+
+	tests := []struct {
+		name              string
+		mountPath         string
+		karmadaConfigPath string
+		clusterResources  []runtime.Object
+		wantErr           bool
+	}{
+		{
+			name:              "common case",
+			mountPath:         "/etc/karmada/config",
+			karmadaConfigPath: "/etc/karmada/config/karmada.config",
+			clusterResources:  []runtime.Object{agentConfigSecret},
+			wantErr:           false,
+		},
+		{
+			name:              "mount path end up with a extra / symbol",
+			mountPath:         "/etc/karmada/config/",
+			karmadaConfigPath: "/etc/karmada/config/karmada.config",
+			clusterResources:  []runtime.Object{agentConfigSecret},
+			wantErr:           false,
+		},
+		{
+			name:              "agent config secret not found",
+			mountPath:         "/etc/karmada/config",
+			karmadaConfigPath: "/etc/karmada/config/karmada.config",
+			wantErr:           true,
+		},
+		{
+			name:              "agent config secret exist but has a invalid key name",
+			mountPath:         "/etc/karmada/config",
+			karmadaConfigPath: "/etc/karmada/config/karmada-config",
+			clusterResources:  []runtime.Object{agentConfigSecret},
+			wantErr:           true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			j := &CommandUnregisterOption{
+				Namespace:           namespace,
+				MemberClusterClient: fake.NewSimpleClientset(tt.clusterResources...),
+			}
+			agent := &appsv1.Deployment{
+				ObjectMeta: metav1.ObjectMeta{Name: register.KarmadaAgentName, Namespace: namespace},
+				Spec: appsv1.DeploymentSpec{
+					Template: corev1.PodTemplateSpec{
+						Spec: corev1.PodSpec{
+							Containers: []corev1.Container{{
+								Command: []string{
+									"/bin/karmada-agent",
+									"--karmada-kubeconfig=" + tt.karmadaConfigPath,
+								},
+								VolumeMounts: []corev1.VolumeMount{{
+									Name:      agentSecretVolumeName,
+									MountPath: tt.mountPath,
+								}},
+							}},
+							Volumes: []corev1.Volume{{
+								Name: agentSecretVolumeName,
+								VolumeSource: corev1.VolumeSource{
+									Secret: &corev1.SecretVolumeSource{SecretName: agentConfigSecretName},
+								},
+							}},
+						},
+					},
+				},
+			}
+			_, err := j.getKarmadaAgentConfig(agent)
+			if (err == nil && tt.wantErr) || (err != nil && !tt.wantErr) {
+				t.Errorf("getSpecifiedKarmadaContext() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestCommandUnregisterOption_RunUnregisterCluster(t *testing.T) {
+	tests := []struct {
+		name             string
+		clusterObject    []runtime.Object
+		clusterResources []runtime.Object
+		wantErr          bool
+	}{
+		{
+			name:             "cluster object not exist",
+			clusterObject:    []runtime.Object{},
+			clusterResources: []runtime.Object{},
+			wantErr:          true,
+		},
+		{
+			name:             "cluster exist, but cluster resources not found",
+			clusterObject:    []runtime.Object{&clusterv1alpha1.Cluster{ObjectMeta: metav1.ObjectMeta{Name: clusterName}}},
+			clusterResources: []runtime.Object{},
+			wantErr:          false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			j := &CommandUnregisterOption{
+				ClusterName:      clusterName,
+				Namespace:        namespace,
+				ClusterNamespace: clusterNamespace,
+				Wait:             60 * time.Second,
+			}
+			j.ControlPlaneClient = fakekarmadaclient.NewSimpleClientset(tt.clusterObject...)
+			j.MemberClusterClient = fake.NewSimpleClientset(tt.clusterResources...)
+			err := j.RunUnregisterCluster()
+			if (err == nil && tt.wantErr) || (err != nil && !tt.wantErr) {
+				t.Errorf("RunUnregisterCluster() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func createSecret(secretName, secretNamespace, keyName string, value []byte) *corev1.Secret {
+	return &corev1.Secret{
+		ObjectMeta: metav1.ObjectMeta{Name: secretName, Namespace: secretNamespace},
+		Data: map[string][]byte{
+			keyName: value,
+		},
+	}
+}