Add an e2e test on init update

Signed-off-by: Jian Qiu <jqiu@redhat.com>

test/e2e/clusteradm/e2e_suite_test.go

@@ -12,6 +12,7 @@ import (
 	"k8s.io/kubectl/pkg/scheme"
 	addonclientset "open-cluster-management.io/api/client/addon/clientset/versioned"
 	clusterv1client "open-cluster-management.io/api/client/cluster/clientset/versioned"
+	operatorclient "open-cluster-management.io/api/client/operator/clientset/versioned"
 	clusterv1 "open-cluster-management.io/api/cluster/v1"
 
 	"testing"
@@ -30,6 +31,7 @@ var apiExtensionsClient apiextensionsclient.Interface
 var dynamicClient dynamic.Interface
 var clusterClient clusterv1client.Interface
 var addonClient addonclientset.Interface
+var operatorClient operatorclient.Interface
 
 func TestE2EClusteradm(t *testing.T) {
 	gomega.RegisterFailHandler(ginkgo.Fail)
@@ -72,6 +74,8 @@ var _ = ginkgo.BeforeSuite(func() {
 	gomega.Expect(err).NotTo(gomega.HaveOccurred())
 	addonClient, err = addonclientset.NewForConfig(hubConfig)
 	gomega.Expect(err).NotTo(gomega.HaveOccurred())
+	operatorClient, err = operatorclient.NewForConfig(hubConfig)
+	gomega.Expect(err).NotTo(gomega.HaveOccurred())
 
 	err = clusterv1.AddToScheme(scheme.Scheme)
 	gomega.Expect(err).NotTo(gomega.HaveOccurred())

test/e2e/clusteradm/init_test.go

@@ -0,0 +1,44 @@
+// Copyright Contributors to the Open Cluster Management project
+
+package clusteradme2e
+
+import (
+	"context"
+
+	"github.com/onsi/ginkgo/v2"
+	"github.com/onsi/gomega"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+var _ = ginkgo.Describe("test clusteradm with bootstrap token in singleton mode", func() {
+	ginkgo.BeforeEach(func() {
+		ginkgo.By("clear e2e environment...")
+		err := e2e.ClearEnv()
+		gomega.Expect(err).NotTo(gomega.HaveOccurred())
+	})
+
+	ginkgo.Context("init hub again to change the feature flag", func() {
+		ginkgo.By("init hub with bootstrap token")
+		err := e2e.Clusteradm().Init(
+			"--use-bootstrap-token",
+			"--context", e2e.Cluster().Hub().Context(),
+			"--bundle-version=latest",
+		)
+		gomega.Expect(err).NotTo(gomega.HaveOccurred(), "clusteradm init error")
+
+		cm, err := operatorClient.OperatorV1().ClusterManagers().Get(context.TODO(), "cluster-manager", metav1.GetOptions{})
+		gomega.Expect(err).NotTo(gomega.HaveOccurred())
+		gomega.Expect(len(cm.Spec.RegistrationConfiguration.FeatureGates)).Should(gomega.Equal(1))
+
+		err = e2e.Clusteradm().Init(
+			"--use-bootstrap-token",
+			"--context", e2e.Cluster().Hub().Context(),
+			"--feature-gates=ManagedClusterAutoApproval=true",
+			"--bundle-version=latest",
+		)
+		gomega.Expect(err).NotTo(gomega.HaveOccurred(), "clusteradm init error")
+		cm, err = operatorClient.OperatorV1().ClusterManagers().Get(context.TODO(), "cluster-manager", metav1.GetOptions{})
+		gomega.Expect(err).NotTo(gomega.HaveOccurred())
+		gomega.Expect(len(cm.Spec.RegistrationConfiguration.FeatureGates)).Should(gomega.Equal(2))
+	})
+})