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
18interface SquareConfig {
19  color?: string;
20  width?: number;
21}
22
23function createSquare(config: SquareConfig): { color: string; area: number } {
24  let newSquare = {color: 'white', area: 100};
25  if (config.color) {
26    newSquare.color = config.color;
27  }
28  if (config.width) {
29    newSquare.area = config.width * config.width;
30  }
31  return newSquare;
32}
33
34let mySquare = createSquare({color: 'black'});
35
36assert(createSquare({color: 'black'}).color === 'black', 'success');
37
38assert(createSquare({color: 'black'}).area === 100, 'success');