add cust js api mock

Signed-off-by: huangke11 <huangke11@huawei.com>

runtime/main/extend/systemplugin/napi/cust.js

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+import { paramMock } from "../utils"
+
+export function mockCust() {
+  const cust = {
+    getOneCfgFile: function (...args) {
+      console.warn("cust.getOneCfgFile interface mocked in the Previewer. How this interface works on the" +
+        " Previewer may be different from that on a real device.")
+      const len = args.length
+      if (typeof args[len - 1] === 'function') {
+        args[len - 1].call(this, paramMock.businessErrorMock, paramMock.paramStringMock);
+      } else {
+        return new Promise((resolve, reject) => {
+          resolve(paramMock.paramStringMock);
+        })
+      }
+    },
+    getCfgFiles: function (...args) {
+      console.warn("cust.getCfgFiles interface mocked in the Previewer. How this interface works on the" +
+        " Previewer may be different from that on a real device.")
+      const len = args.length
+      if (typeof args[len - 1] === 'function') {
+        args[len - 1].call(this, paramMock.businessErrorMock, paramMock.paramArrayMock);
+      } else {
+        return new Promise((resolve, reject) => {
+          resolve(paramMock.paramArrayMock);
+        })
+      }
+    },
+    getCfgDirList: function (...args) {
+      console.warn("cust.getCfgDirList interface mocked in the Previewer. How this interface works on the" +
+        " Previewer may be different from that on a real device.")
+      const len = args.length
+      if (typeof args[len - 1] === 'function') {
+        args[len - 1].call(this, paramMock.businessErrorMock, paramMock.paramArrayMock);
+      } else {
+        return new Promise((resolve, reject) => {
+          resolve(paramMock.paramArrayMock);
+        })
+      }
+    }
+  }
+  return cust
+}

runtime/main/extend/systemplugin/napi/index.js

@@ -59,6 +59,7 @@ import { mockFileManager } from "./filemanager"
 import { mockEnvironment } from "./environment"
 import { mockSettings } from './settings'
 import { mockAbilityAccessCtrl } from './abilityAccessCtrl'
+import { mockCust } from './cust'
 
 export function mockRequireNapiFun() {
   global.requireNapi = function (...args) {
@@ -155,6 +156,8 @@ export function mockRequireNapiFun() {
         return mockSettings();
       case "abilityAccessCtrl":
         return mockAbilityAccessCtrl();
+      case "cust":
+          return mockCust();
       default:
         return global.requireNapiPreview(...args);
     }