🚄 💊 ⬇️ 基于编剧和玩笑的自动测试 🔸 ⚪️ 🧡

长期以来，Selenium一直是测试自动化的主要工具。但是，目前市场上有一些不错的替代产品，例如Cypress，Puppeteer和Playwright。剧作家，我们将在本文中进行讨论。

Playwright是一个节点js测试自动化库，具有用于不同浏览器（Chromium，Firefox和WebKit）的单个API。由Microsoft开发。在我看来，Playwright的主要优势在于它与浏览器的紧密集成以及在Selenium无法访问的水平上与浏览器进行交互的能力。

开源产品Kanboard被部署为测试对象。

为了进行测试，我们将使用节点js，playwright，jest，jest-playwright-preset和jest-html-reporters。我们使用Playwright与浏览器进行交互。我们将Jest用作测试跑步者。需要Jest-html-reporters来生成HTML报告。

第一步是创建一个节点项目并安装所有必需的依赖项：

npm init

npm i -D playwright

npm install --save-dev jest

npm install -D jest-playwright-preset

npm install jest-html-reporters --save-dev

运行这些命令后，我们将获得具有所需依赖项的package.json和node_modules。为了设置一个报告和一个带有测试的文件夹，我们为了方便起见对package.json进行了更改：

{
  "name": "kb-playwright-tests",
  "version": "1.0.0",
  "description": "An automation test framework which is based on playwright.",
  "main": "index.js",
  "scripts": {
    "test": "jest"
  },
  "author": "",
  "license": "ISC",
  "jest": {
    "testMatch": [
      "**/tests/**/*.[jt]s?(x)",
      "**/?(*.)+(spec|test).[jt]s?(x)"
    ],
    "reporters": [
      "default",
      "jest-html-reporters"
    ]
  },
  "devDependencies": {
    "jest": "^26.6.3",
    "jest-html-reporters": "^2.1.0",
    "jest-playwright-preset": "^1.4.0",
    "playwright": "^1.6.1"
  }
}

下一步是创建页面对象：

const { DashboardPage } = require("./DashboardPage");
var config = require('../config');

class SignInPage {
  constructor(page) {
    this.page = page;
  }

  async openSignInPage() {
    await this.page.goto(config.web.url);
  }

  async signInAs(user) {
    await this.page.fill("css=#form-username", user.username);
    await this.page.fill("css=#form-password", user.password);
    await this.page.click("css=button[type='submit']");
    return new DashboardPage(this.page);
  }
}
module.exports = { SignInPage };

 class DashboardPage {
  constructor(page) {
    this.page = page;
  }
}
module.exports = { DashboardPage };

测试将如下所示：

const { chromium } = require("playwright");
const { SignInPage } = require("../pageobjectmodels/SignInPage");
const { roles } = require("../enums/roles");
const assert = require("assert");
var config = require("../config");
let browser;
let page;

beforeAll(async () => {
  console.log("headless : " + config.web.headless);
  console.log("sloMo : " + config.web.sloMo);
  browser = await chromium.launch({
    headless: config.web.headless == "true",
    slowMo: parseInt(config.web.sloMo, 10),
  });
});
afterAll(async () => {
  await browser.close();
});
beforeEach(async () => {
  page = await browser.newPage();
  if (config.web.networkSubscription) {
    page.on("request", (request) =>
      console.log(">>", request.method(), request.url())
    );
    page.on("response", (response) =>
      console.log("<<", response.status(), response.url())
    );
  }
});
afterEach(async () => {
  await page.close();
});

test("An admin is able to see a dashboard", async () => {
  const signInPage = new SignInPage(page);
  await signInPage.openSignInPage();
  const dashboardPage = await signInPage.signInAs(roles.ADMIN);
  const dashboard = await dashboardPage.page.$("#dashboard");
  assert(dashboard);
});

该行browser = await chromium.launch({headless: config.web.headless == "true",slowMo: parseInt(config.web.sloMo, 10),});允许您配置无头模式和延迟。

该代码块beforeEach使您可以设置如下所示的网络条目：

>> GET http://localhost/kanboard/
<< 302 http://localhost/kanboard/
>> GET http://localhost/kanboard/?controller=AuthController&action=login
<< 200 http://localhost/kanboard/?controller=AuthController&action=login
>> GET http://localhost/kanboard/assets/css/vendor.min.css?1576454976
>> GET http://localhost/kanboard/assets/css/app.min.css?1576454976
>> GET http://localhost/kanboard/assets/js/vendor.min.js?1576454976
....

为了能够控制这些参数，请添加config.js

var config = {};
config.web = {};

config.web.url = process.env.URL || "http://localhost/kanboard/";
config.web.headless = process.env.HEADLESS || false;
config.web.sloMo = process.env.SLOMO || 50;
config.web.networkSubscription = process.env.NETWORK;

module.exports = config;

现在，您可以使用以下命令来运行测试：

npm run test 使用默认值进行测试运行（无头假，sloMo 50，网络关闭）

NETWORK = 'on' npm run test 使用值无头测试运行，sloMo 50，联网

HEADLESS = 'true' npm run test 值无头测试，sloMo 50，联网关闭

运行测试后，将生成报告-jest_html_reporters.html

感谢您的关注，希望本文对您有所帮助。

基于编剧和玩笑的自动测试

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