forked from openinula/inula
43 lines
1.3 KiB
TypeScript
43 lines
1.3 KiB
TypeScript
/*
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* Copyright (c) 2023 Huawei Technologies Co.,Ltd.
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*
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* openInula is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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*
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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import utils from '../../../../src/utils/commonUtils/utils';
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describe('bind function', () => {
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it('should return a new function', () => {
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const fn = () => {};
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const boundFn = utils.bind(fn, {});
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expect(boundFn).toBeInstanceOf(Function);
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expect(boundFn).not.toBe(fn);
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});
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it('should call original function with correct this value', () => {
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const thisArg = { name: 'Alice' };
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const fn = function (this: any) {
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return this['name'];
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};
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const boundFn = utils.bind(fn, thisArg);
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const result = boundFn();
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expect(result).toBe('Alice');
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});
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it('should pass arguments to the original function', () => {
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const fn = (a: number, b: number) => a + b;
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const boundFn = utils.bind(fn, {});
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const result = boundFn(2, 3);
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expect(result).toBe(5);
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});
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});
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