1/*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16import assert = require('assert');
17
18class Animal {
19  private name: string;
20
21  constructor(theName: string) {
22    this.name = theName;
23  }
24}
25
26class Rhino extends Animal {
27  constructor() {
28    super('Rhino');
29  }
30}
31
32let animal = new Animal('Rhino');
33
34let rhino = new Rhino();
35
36animal = rhino;
37
38assert(animal === rhino, 'success');