Adding the mutating webhook

test/images/webhook/patch_test.go

@@ -0,0 +1,95 @@
+/*
+Copyright 2017 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 main
+
+import (
+	"encoding/json"
+	"reflect"
+	"testing"
+
+	jsonpatch "github.com/evanphx/json-patch"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+)
+
+func TestJSONPatchForConfigMap(t *testing.T) {
+	cm := corev1.ConfigMap{
+		Data: map[string]string{
+			"mutation-start": "yes",
+		},
+	}
+	cmJS, err := json.Marshal(cm)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	patchObj, err := jsonpatch.DecodePatch([]byte(patch1))
+	if err != nil {
+		t.Fatal(err)
+	}
+	patchedJS, err := patchObj.Apply(cmJS)
+	patchedObj := corev1.ConfigMap{}
+	err = json.Unmarshal(patchedJS, &patchedObj)
+	if err != nil {
+		t.Fatal(err)
+	}
+	expected := corev1.ConfigMap{
+		Data: map[string]string{
+			"mutation-start":   "yes",
+			"mutation-stage-1": "yes",
+		},
+	}
+
+	if !reflect.DeepEqual(patchedObj, expected) {
+		t.Errorf("\nexpected %#v\n, got %#v", expected, patchedObj)
+	}
+}
+
+func TestJSONPatchForUnstructured(t *testing.T) {
+	cr := &unstructured.Unstructured{
+		Object: map[string]interface{}{
+			"kind":       "Something",
+			"apiVersion": "somegroup/v1",
+			"data": map[string]interface{}{
+				"mutation-start": "yes",
+			},
+		},
+	}
+	crJS, err := json.Marshal(cr)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	patchObj, err := jsonpatch.DecodePatch([]byte(patch1))
+	if err != nil {
+		t.Fatal(err)
+	}
+	patchedJS, err := patchObj.Apply(crJS)
+	patchedObj := unstructured.Unstructured{}
+	err = json.Unmarshal(patchedJS, &patchedObj)
+	if err != nil {
+		t.Fatal(err)
+	}
+	expectedData := map[string]interface{}{
+		"mutation-start":   "yes",
+		"mutation-stage-1": "yes",
+	}
+
+	if !reflect.DeepEqual(patchedObj.Object["data"], expectedData) {
+		t.Errorf("\nexpected %#v\n, got %#v", expectedData, patchedObj.Object["data"])
+	}
+}