使用明确的函数

\Using clear functions

如上所述,计时器(clearTimeout、clearInterval 和 clearImmediate)的所有清除函数均被隐式模拟。看一下使用 setTimeout 的示例:

\As mentioned, all clear functions from timers (clearTimeout, clearInterval,and clearImmediate) are implicitly mocked. Take a look at this example using setTimeout:

import assert from 'node:assert';
import { test } from 'node:test';
test('mocks setTimeout to be executed synchronously without having to actually wait for it', (context) => {
 const fn = context.mock.fn();
 // Optionally choose what to mock
 context.mock.timers.enable({ apis: ['setTimeout'] });
 const id = setTimeout(fn, 9999);
 // Implicitly mocked as well
 clearTimeout(id);
 context.mock.timers.tick(9999);
 // As that setTimeout was cleared the mock function will never be called
 assert.strictEqual(fn.mock.callCount(), 0);
});const assert = require('node:assert');
const { test } = require('node:test');
test('mocks setTimeout to be executed synchronously without having to actually wait for it', (context) => {
 const fn = context.mock.fn();
 // Optionally choose what to mock
 context.mock.timers.enable({ apis: ['setTimeout'] });
 const id = setTimeout(fn, 9999);
 // Implicitly mocked as well
 clearTimeout(id);
 context.mock.timers.tick(9999);
 // As that setTimeout was cleared the mock function will never be called
 assert.strictEqual(fn.mock.callCount(), 0);
});拷贝