Merge pull request #120530 from my-git9/node-ut

kubeadm: add unit test for phases/bootstraptoken/node/token.go

cmd/kubeadm/app/phases/bootstraptoken/node/token_test.go

@@ -0,0 +1,135 @@
+/*
+Copyright 2023 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 node
+
+import (
+	"context"
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	clientsetfake "k8s.io/client-go/kubernetes/fake"
+	bootstraptokenv1 "k8s.io/kubernetes/cmd/kubeadm/app/apis/bootstraptoken/v1"
+)
+
+func TestUpdateOrCreateTokens(t *testing.T) {
+	tests := []struct {
+		name         string
+		failIfExists bool
+		tokens       []bootstraptokenv1.BootstrapToken
+		wantErr      bool
+	}{
+		{
+			name:         "token is nil",
+			failIfExists: true,
+			tokens:       []bootstraptokenv1.BootstrapToken{},
+			wantErr:      false,
+		},
+		{
+			name:         "create secret which does not exist",
+			failIfExists: true,
+			tokens: []bootstraptokenv1.BootstrapToken{
+				{
+					Token: &bootstraptokenv1.BootstrapTokenString{
+						ID:     "token1",
+						Secret: "token1data",
+					},
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name:         "create multiple secrets which do not exist",
+			failIfExists: true,
+			tokens: []bootstraptokenv1.BootstrapToken{
+				{
+					Token: &bootstraptokenv1.BootstrapTokenString{
+						ID:     "token1",
+						Secret: "token1data",
+					},
+				},
+				{
+					Token: &bootstraptokenv1.BootstrapTokenString{
+						ID:     "token2",
+						Secret: "token2data",
+					},
+				},
+				{
+					Token: &bootstraptokenv1.BootstrapTokenString{
+						ID:     "token3",
+						Secret: "token3data",
+					},
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name:         "create secret which exists, failIfExists is false",
+			failIfExists: false,
+			tokens: []bootstraptokenv1.BootstrapToken{
+				{
+					Token: &bootstraptokenv1.BootstrapTokenString{
+						ID:     "foo",
+						Secret: "bar",
+					},
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name:         "create secret which exists, failIfExists is true",
+			failIfExists: true,
+			tokens: []bootstraptokenv1.BootstrapToken{
+				{
+					Token: &bootstraptokenv1.BootstrapTokenString{
+						ID:     "foo",
+						Secret: "bar",
+					},
+				},
+			},
+			wantErr: true,
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			client := newMockClientForTest(t)
+			if err := UpdateOrCreateTokens(client, tc.failIfExists, tc.tokens); (err != nil) != tc.wantErr {
+				t.Fatalf("UpdateOrCreateTokens() error = %v, wantErr %v", err, tc.wantErr)
+			}
+		})
+	}
+}
+
+func newMockClientForTest(t *testing.T) *clientsetfake.Clientset {
+	client := clientsetfake.NewSimpleClientset()
+	_, err := client.CoreV1().Secrets(metav1.NamespaceSystem).Create(context.TODO(), &v1.Secret{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "Secret",
+			APIVersion: "v1",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "bootstrap-token-foo",
+			Labels:    map[string]string{"app": "foo"},
+			Namespace: metav1.NamespaceSystem,
+		},
+		Data: map[string][]byte{"foo": {'f', 'o', 'o'}},
+	}, metav1.CreateOptions{})
+	if err != nil {
+		t.Fatalf("error creating sercet: %v", err)
+	}
+	return client
+}