Added unit tests for resourceinterpreter webhook configmanager

Signed-off-by: Anuj Agrawal <[email protected]>

pkg/resourceinterpreter/customized/webhook/configmanager/accessor_test.go

@@ -0,0 +1,217 @@
+/*
+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 configmanager
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
+	webhookutil "k8s.io/apiserver/pkg/util/webhook"
+	"k8s.io/utils/pointer"
+
+	configv1alpha1 "github.com/karmada-io/karmada/pkg/apis/config/v1alpha1"
+)
+
+func TestNewResourceExploringAccessor(t *testing.T) {
+	testCases := []struct {
+		name              string
+		uid               string
+		configurationName string
+		webhook           *configv1alpha1.ResourceInterpreterWebhook
+	}{
+		{
+			name:              "basic webhook accessor",
+			uid:               "test-uid-1",
+			configurationName: "test-config-1",
+			webhook: &configv1alpha1.ResourceInterpreterWebhook{
+				Name: "test-webhook",
+			},
+		},
+		{
+			name:              "webhook accessor with empty fields",
+			uid:               "",
+			configurationName: "",
+			webhook:           &configv1alpha1.ResourceInterpreterWebhook{},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			accessor := NewResourceExploringAccessor(tc.uid, tc.configurationName, tc.webhook)
+
+			assert.NotNil(t, accessor, "accessor should not be nil")
+			assert.Equal(t, tc.uid, accessor.GetUID(), "uid should match")
+			assert.Equal(t, tc.configurationName, accessor.GetConfigurationName(), "configuration name should match")
+			assert.Equal(t, tc.webhook.Name, accessor.GetName(), "webhook name should match")
+		})
+	}
+}
+
+func TestResourceExploringAccessor_Getters(t *testing.T) {
+	timeoutSeconds := int32(10)
+	testWebhook := &configv1alpha1.ResourceInterpreterWebhook{
+		Name: "test-webhook",
+		ClientConfig: admissionregistrationv1.WebhookClientConfig{
+			URL: pointer.String("https://test-webhook.example.com"),
+			Service: &admissionregistrationv1.ServiceReference{
+				Name:      "test-service",
+				Namespace: "test-namespace",
+				Port:      pointer.Int32(443),
+				Path:      pointer.String("/validate"),
+			},
+			CABundle: []byte("test-ca-bundle"),
+		},
+		Rules: []configv1alpha1.RuleWithOperations{
+			{
+				Operations: []configv1alpha1.InterpreterOperation{"interpret"},
+				Rule: configv1alpha1.Rule{
+					APIGroups:   []string{""},
+					APIVersions: []string{"v1"},
+					Kinds:       []string{"Pod"},
+				},
+			},
+		},
+		TimeoutSeconds:             &timeoutSeconds,
+		InterpreterContextVersions: []string{"v1", "v2"},
+	}
+
+	testCases := []struct {
+		name              string
+		uid               string
+		configurationName string
+		webhook           *configv1alpha1.ResourceInterpreterWebhook
+	}{
+		{
+			name:              "complete webhook configuration",
+			uid:               "test-uid-1",
+			configurationName: "test-config-1",
+			webhook:           testWebhook,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			accessor := NewResourceExploringAccessor(tc.uid, tc.configurationName, tc.webhook)
+
+			// Test all getters
+			assert.Equal(t, tc.webhook.ClientConfig, accessor.GetClientConfig(), "client config should match")
+			assert.Equal(t, tc.webhook.Rules, accessor.GetRules(), "rules should match")
+			assert.Equal(t, tc.webhook.TimeoutSeconds, accessor.GetTimeoutSeconds(), "timeout seconds should match")
+			assert.Equal(t, tc.webhook.InterpreterContextVersions, accessor.GetInterpreterContextVersions(), "interpreter context versions should match")
+		})
+	}
+}
+
+func TestHookClientConfigForWebhook(t *testing.T) {
+	testCases := []struct {
+		name         string
+		hookName     string
+		clientConfig admissionregistrationv1.WebhookClientConfig
+		expected     webhookutil.ClientConfig
+	}{
+		{
+			name:     "URL configuration",
+			hookName: "test-webhook",
+			clientConfig: admissionregistrationv1.WebhookClientConfig{
+				URL:      pointer.String("https://test-webhook.example.com"),
+				CABundle: []byte("test-ca-bundle"),
+			},
+			expected: webhookutil.ClientConfig{
+				Name:     "test-webhook",
+				URL:      "https://test-webhook.example.com",
+				CABundle: []byte("test-ca-bundle"),
+			},
+		},
+		{
+			name:     "Service configuration with defaults",
+			hookName: "test-webhook",
+			clientConfig: admissionregistrationv1.WebhookClientConfig{
+				Service: &admissionregistrationv1.ServiceReference{
+					Name:      "test-service",
+					Namespace: "test-namespace",
+				},
+				CABundle: []byte("test-ca-bundle"),
+			},
+			expected: webhookutil.ClientConfig{
+				Name:     "test-webhook",
+				CABundle: []byte("test-ca-bundle"),
+				Service: &webhookutil.ClientConfigService{
+					Name:      "test-service",
+					Namespace: "test-namespace",
+					Port:      443,
+				},
+			},
+		},
+		{
+			name:     "Service configuration with custom values",
+			hookName: "test-webhook",
+			clientConfig: admissionregistrationv1.WebhookClientConfig{
+				Service: &admissionregistrationv1.ServiceReference{
+					Name:      "test-service",
+					Namespace: "test-namespace",
+					Port:      pointer.Int32(8443),
+					Path:      pointer.String("/validate"),
+				},
+				CABundle: []byte("test-ca-bundle"),
+			},
+			expected: webhookutil.ClientConfig{
+				Name:     "test-webhook",
+				CABundle: []byte("test-ca-bundle"),
+				Service: &webhookutil.ClientConfigService{
+					Name:      "test-service",
+					Namespace: "test-namespace",
+					Port:      8443,
+					Path:      "/validate",
+				},
+			},
+		},
+		{
+			name:     "Empty service configuration",
+			hookName: "test-webhook",
+			clientConfig: admissionregistrationv1.WebhookClientConfig{
+				Service:  &admissionregistrationv1.ServiceReference{},
+				CABundle: []byte("test-ca-bundle"),
+			},
+			expected: webhookutil.ClientConfig{
+				Name:     "test-webhook",
+				CABundle: []byte("test-ca-bundle"),
+				Service: &webhookutil.ClientConfigService{
+					Port: 443,
+				},
+			},
+		},
+		{
+			name:     "Nil service and URL configuration",
+			hookName: "test-webhook",
+			clientConfig: admissionregistrationv1.WebhookClientConfig{
+				CABundle: []byte("test-ca-bundle"),
+			},
+			expected: webhookutil.ClientConfig{
+				Name:     "test-webhook",
+				CABundle: []byte("test-ca-bundle"),
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			result := hookClientConfigForWebhook(tc.hookName, tc.clientConfig)
+			assert.Equal(t, tc.expected, result, "webhook client config should match expected configuration")
+		})
+	}
+}