我想在这里做的是循环故事书故事,所以我可以对它们进行视觉回归测试:
const puppeteer = require('puppeteer');
const { toMatchImageSnapshot } = require('jest-image-snapshot');
expect.extend({ toMatchImageSnapshot });
test('no visual regression for button', async () => {
const selector = 'a[href*="?selectedKind=Buttons&selectedStory="]';
const browser = await puppeteer.launch({headless:false, slowMo: 350});
const page = await browser.newPage();
await page.goto('http://localhost:8080');
const storyLinks = await page.evaluate(() => {
const stories = Array.from(document.querySelectorAll('a[href*="?selectedKind=Buttons&selectedStory="]'));
const links = stories.map(story => story.href);
return links;
});
await storyLinks.forEach( (storyLink) => {
page.goto(storyLink).then(async (res,rej) => {
const screen = await page.screenshot();
return await expect(screen).toMatchImageSnapshot();
});
}); …Run Code Online (Sandbox Code Playgroud) puppeteer ×1