javascript - 我可以为剧作家浏览器设置日期吗

Question

当我编写测试以在 playwright 中运行时，我希望能够设置浏览器认为它在测试开始时的日期。有没有办法使用剧作家来实现这一目标？

Answer 1

更简单的解决方案

    page.evaluate(() => {
      Date.now = () => {
        return 1609477200000; //Jan 1, 2021
      };
    });

Answer 2

您可以使用诸如TimeShift 之类的模拟工具。这段代码将注入 timeshift 库，然后将日期注入Feb 02 2012：

const playwright = require("playwright");

(async () => {

    let removed = false;
    const browser = await playwright["chromium"].launch({headless: false});
    const page = await browser.newPage();
    await page.setContent('<a href="#" onclick="document.querySelector(\'span\').innerText = new Date().toString()">Test me</a><span></span>');
    await page.click('a');
    console.log(await page.innerText('span'));
    await page.addScriptTag({ url: 'https://cdn.jsdelivr.net/npm/timeshift-js@1.1.1/timeshift.js'});
    await page.evaluate(() => {
        Date = TimeShift.Date; 
        TimeShift.setTime(1328230923000); 
    });
    await page.click('a');
    console.log(await page.innerText('span'));
    browser.close();
})();

输出：

Fri Sep 18 2020 15:06:58 GMT-0300 (Argentina Standard Time)
Thu Feb 02 2012 22:02:03 GMT-0300