全面系统学测试 从小白入门到实战就业

•  2-1 软件测试的发展--测试基础
•  2-2 软件测试的发展与职业规划--明确测试行业的发展
•  2-3 软件测试之“独孤九剑”--每个阶段测试人员的职责

                                        
const puppeteer = require('puppeteer'),
    BlinkDiff = require('blink-diff'),
    imgUrl = __dirname + "/blink-diff_img/";
 
(async () => {
    const browser = await puppeteer.launch({ headless: true });
    const page = await browser.newPage();
    await page.setViewport({ width: 1920, height: 945 });
    await page.goto('https://juejin.im/');
    await page.evaluate(async () => {
 
        //列表
        var Lists = document.querySelectorAll("div.feed.welcome__feed > ul > li > div > a > div");
        Lists.forEach(function (element, index, array) {
 
            element.querySelector("a.title").innerHTML = "测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试";
 
            //替换标签
            element.querySelector("ul > li.item.category > span").innerHTML = "测试";
 
            //替换作者
            element.querySelector("ul > li.item.username.clickable > div > a").innerHTML = "测试";
 
            //替换发布时间
            element.querySelector("div.info-row.meta-row > ul > li:nth-child(3)").innerHTML = "9999天前";
 
            //替换发布时间
            element.querySelector("div.info-row.meta-row > ul > li:nth-child(4)").innerHTML = "99999999999 次阅读";
 
            //列表图片
            if (element.querySelectorAll("div.lazy.thumb.thumb.loaded").length==1) {
                element.querySelector("div.lazy.thumb.thumb.loaded").style.background = "#fdedc9";
            } else {
                var loaded=document.createElement("div");
                loaded.className=" lazy thumb thumb loaded";
                loaded.style.background = "#fdedc9";
                loaded.setAttribute("data-v-b2db8566","");
                loaded.setAttribute("data-v-009ea7bb","");
                loaded.setAttribute("data-v-f2ca14b0","");
                element.appendChild(loaded);
            }
        });
 
    });
 
    await page.screenshot({ path: imgUrl + 'Screenshots.png', fullPage: true });
 
    const diff = new BlinkDiff({
        imageAPath: imgUrl + 'example.png', // 设计图
        imageBPath: imgUrl + 'Screenshots.png',//页面截图
        threshold: 0.02, // 1% threshold
        imageOutputPath: imgUrl + 'Diff.png'//Diff路径
    });
 
    diff.run(function (error, result) {
        if (error) {
            throw error;
        } else {
            console.log(diff.hasPassed(result.code) ? '通过' : '失败');
            console.log('总像素:' + result.dimension);
            console.log('发现:' + result.differences + ' 差异.');
        }
    });
 
    //关闭puppeteer
    await browser.close();
})();
                                    

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