We ran all tests on the latest-generation MacBook Pro 16" running macOS Catalina 10.15.7 (19H2) with the following specs: Model Identifier: MacBookPro16,1 Our friend Eduardo Riol joins us to discuss two modern tools used for test automation: Selenium and Puppeteer. taminif 0 330. taminif 3 270. taminif 3 2.9k. PhantomJS was one of the more popular ones. Stay tuned, as we surface new and practical comparisons that tell us more about the tools we love using. First off, let us rank the tools from fastest to slowest for both testing scenarios: This first benchmark brought up some interesting findings: Speed is important, but it can't tell the whole story. Memory: 16 GB, bench-wdio@1.0.0 /Users/ragog/repositories/benchmarks/scripts/wdio-selenium Playwright is a new tool for browser automation which was built by the same team that originally developed Google Chrome Puppeteer. Playwright could change this calculus because it makes cross-browser support easier, but it’s still a potential reason to just stick with Puppeteer. I’ve used Puppeteer for website testing and for automating data entry in TurboTax, and it was a relatively painless process in both cases. These developments made it possible to write efficient tests and scripts against the same browsers that people actually use. A reason to be optimistic, however, is that the Playwright team gave us these tools in the first place. The API methods are identical in most cases, and Playwright also bundles compatible browsers by default. Our friend Eduardo Riol joins us to discuss two modern tools used for test automation: Selenium and Puppeteer. We operate a large grid of real browser instances, ready to run your headless tests. Selenium is a time-tested tool, but Puppeteer, a new contender, has some powerful features that … You should also consider what library has better prospects for future development. Below you can see the aggregate results for our benchmark. Puppeteer vs. Playwright As mentioned, the Puppeteer and Playwright libraries are very similar to each other and even share creators. There are many other factors too. 9.4 9.9 Puppeteer VS Playwright Headless Chromium, WebKit, and Firefox with a single API. Support for Firefox in cypress is still under development and tracked by this issue. For each benchmark, we gathered data from 1000 successful sequential executions of the same script. Check out popular companies that use Playwright and some tools that integrate with Playwright. Playwright is a Node.js library for browser automation. For example, Playwright’s page.click waits for the element to be available and visible by default. For testing specifically, Cypress has also become a popular choice. I wondered why Playwright is better – a new tool that neatly rests on GitHub in a Microsoft organization. February 12, 2020 Tweet Share More Decks by taminif. Therefore we decided to run our own benchmarks to see how newcomers Puppeteer and Playwright measured against the veteran WebDriverIO (using Selenium and the DevTools automation protocols). L3 Cache: 12 MB We'd like … Puppeteer example without async/await. With Playwright, we'd like to take it one step further and offer the same functionality for all the popular rendering engines. So if testing for your iOS users is important, Playwright should be appealing. 1. Google followed up headless Chrome with the public release of Puppeteer a few months later. ├── @wdio/cli@6.9.1 It’s just like Google’s Puppeteer, only instead of being Chrome-only, it also “works” in Firefox and Safari. Yet comprehensive support is an almost impossible task because of how complicated browsers have become. Playwright is a Node library to automate the Chromium (opens new window), WebKit (opens new window) and Firefox (opens new window) browsers with a single API. We were therefore very keen to have the benchmarks run against a production application. Currently it has more activity, growing traction and introduces new features faster than Puppeteer. We don’t know for sure that Playwright’s approach of patching Firefox and WebKit will work out in the long run. This is a benefit of being supported by the Chrome team. Among the results of our benchmark were also some unexpected findings, like Puppeteer being significantly faster on shorter scripts and WebDriverIO showing larger than expected variability in the longer scenarios. On longer E2E scenarios, the difference seems to vanish. The reason for adding Playwright and CodeceptJS in the original Puppeteer course being, Playwright is an incarnation of Puppeteer tool and CodeceptJS act as a framework for both Puppeteer and Playwright, hence having knowledge in all these tools are a good combination for automating an application. WebDriverIO handled this reliably, but the cookie injection step exploded the variability in execution time, sometimes seemingly hanging for longer than five seconds. Puppeteer can drive either Chrome or Chromium (the open-source browser that Chrome is based on), and by default, installing Puppeteer also downloads a compatible version of Chromium. … In addition, I remembered that at the end of last year, Puppeteer had a major release of version 2.0. April 27, 2020 Note: I actually wrote most of this post 2 months ago when I did a deep dive into comparing cypress and puppeteer.Unfortunately I cannot give a … It just means that, for now, Playwright can be easier to use for some situations. Looking at the progress on both sides, we wonder if the future will bring DevTools to the forefront, or if WebDriver will keep enjoying its central role in browser automation. Selenium is a time-tested tool, but Puppeteer, a new contender, has some powerful features that … More involved websites also justify more testing, so the main problem with past headless browsers is that they become less usable exactly when you want to use them more heavily. Interestingly enough, our original test for this scenario included injecting cookies into a brand new session to be able to skip the login procedure entirely. If you are doing something like automating a website workflow or taking screenshots, cross-browser support may not even matter to you. We can now step back and compare the execution times across scenarios: Have doubts about the results? Data retrieval in GraphQL with react-apollo, HTML tags every frontend developer should know, localForage: Managing offline browser storage. Playwright vs Puppeteer. Playwright or Puppeteer? Yet these are still changes that have not been developed in conjunction with the WebKit and Firefox teams. Eventually, programmers started using headless browsers in some cases. A benchmark is useless if the tools being tested are tested under significantly different conditions. Playwright is essentially a browser automation tool and the processor of the node library Puppeteer, as it has the same functionality along with several improvements such as … # Choosing selectors. The second surprise was the lower overall variability shown in the WebDriverIO runs. Microsoft recently published a puppeteer-like library, playwright, whose selling point over puppeteer is playwright supports 3 browser flavors: Chromium, Firefox, and Webkit.. As of 28th January 2020, puppeteer supports both Chromium and Firefox while cypress only supports Chromium. If you use the WebdriverIO API the experience using WebDriver vs Puppeteer should be the same, running commands on Puppeteer might even be a little faster. ├── @wdio/sync@6.10.0 Proportionally, the difference between the newer tools and both flavours of WebDriverIO is also lower. We suggest keeping an eye on both technologies. I hope they drive each other to become even better, making browser automation progressively easier and more reliable. # Choosing selectors. Note: using Puppeteer instead of WebDriver is only supported if running tests locally and if the … The main draw here is that it supports multiple browsers, whereas we’ve always been limited to just Chrome using Puppeteer. Total Number of Cores: 6 To avoid this, we put together and followed these guidelines: See the below section for additional details on all points. In most cases, no data is actually fetched from the backend, and the frontend is instead leveraging client-side data storage. While its primary use case has been implementing test suites for websites, programmers have also used it for things like taking screenshots or automating tasks when websites don’t provide APIs. Fully compatible with Selenium Webdriver protocol. # Puppeteer vs Playwright. These browsers do most of the work of full browsers, but they don’t actually render the UI. Browser Automation. They ship Playwright with patched versions of WebKit and Firefox. We used Puppeteer in several projects, and overall it was not bad. The Chrome DevTools team develops it, giving it a major advantage over similar projects because it has institutional support from the same company that makes the most widely used browser in the world. Why playwright > Puppetter. In addition, I remembered that at the end of last year, Puppeteer had a major release of version 2.0. A Selenium, Playwright and Puppeteer testing platform running in Kubernetes or Openshift clusters. Run Headless tests with Puppeteer and Playwright. Headless browsers can work well for testing simpler websites, but to test everything that websites can do, they need to emulate full browsers as closely as possible by supporting various web standards. The drama started immediately. Yet you shouldn’t choose Playwright over Puppeteer just because Playwright is newer — Playwright hasn’t reached a 1.0 release yet, so the API may get breaking changes before then. A benchmark including Puppeteer/Playwright and Selenium is pretty much an apples-and-oranges comparison: these tools have significantly different scopes, and anyone evaluating them should be aware of their differences before speed is considered. With Playwright, we’d like to take it one step further and offer the same functionality for all the popular rendering engines. This left us wondering whether this was due to a higher startup time on Playwright's side. I wondered why Playwright is better – a new tool that neatly rests on GitHub in a Microsoft organization. The last noteworthy difference is that Playwright has a more powerful browser context feature that lets you simulate multiple devices with a single browser instance. Puppeteer. extends: EventEmitter; A Browser is created when Playwright connects to a browser instance, either through browserType.launch([options]) or browserType.connect(params). In this case we chose our own, which runs a Vue.js frontend and a backend which heavily leverages AWS. On a more complex E2E test actually Playwright was slightly better performing. Puppeteer proved that there is a lot of interest in the new generation of ever-green, capable and reliable automation drivers. Our primary goal with … Looking at the source code of the page. Number of Processors: 1 Cloud Grid. Which browser version pinned to same? The Puppeteer team essentially moved from Google to Microsoft and became the Playwright team. taminif. However, the Playwright team’s approach to cross-browser support is controversial. Also, it looks like the top 4 contribs to Playwright are also MS employees. Puppeteer is a Node library which provides a high-level API to control headless Chrome over the DevTools Protocol. It can drive Chromium, WebKit (the browser engine for Safari), and Firefox. Scale your browser automation by taking advantage of our cloud. Playwright is well maintained by some developer who started puppeteer and there are less bugs on playwright than on Puppeteer. The CSS selectors you ultimately choose to use in your scripts will determine how much maintenance work will go into your Puppeteer/Playwright scripts over the course of their lifetime. We were looking forward to this scenario, but each of us had different expectations on what the numbers would look like. Google maintains Puppeteer and Microsoft maintains Playwright. 1371. Cloud Grid. “Nauczalne” programowanie. website. Puppeteer: Yes Playwright: Yes Parallelism Grids and Infrastructure. "Cross browser", "Open source" and "Promise based" are the key factors why developers consider Playwright; whereas "Very well documented", "Scriptable web browser" and "Promise based" are the primary reasons why Puppeteer is favored. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. The CSS selectors you ultimately choose to use in your scripts will determine how much maintenance work will go into your Puppeteer/Playwright scripts over the course of their lifetime. Whilst it adds support for Firefox and Webkit, even if you’re running your e2e tests in one browser (Chromium) I’d still recommend Playwright over Puppeteer any day of the week. This is in part because of how it interfaces with the browser. Puppeteer makes it easy to get started with browser automation. Puppeteer is getting a lot of buzz as a way for JS developers to create E2E/UI tests. It might be helpful to understand some historical context first. Keep this in mind when choosing an automation tool. Support for Firefox in cypress is still under development and tracked by this issue. I think the three main factors to consider are cross-browser support, long-term library support, and your particular use case for browser automation. In their own words: Playwright is focused on enabling cross-browser web automation platform that is ever-green, capable, reliable and fast. Run your own benchmark! Get performance insights in less than 4 minutes. We wanted to support users with synthetic monitoring and testing to let them know whether their websites worked as expected at any given moment. The author of PhantomJS deprecated it, and his impetus for doing so was Google’s announcement of headless Chrome, which was first available in Chrome 59. Browser automation is not a new technology. Last week, Microsoft announced its new “Playwright” tool, which is very much like Puppeteer and created by many of its original contributors. Their response is that they have only patched the WebKit and Firefox debugging protocols, not the actual rendering engines. Still, our previous experience showed us that most Selenium users who chose JavaScript used WebDriverIO to drive their automated scripts, and therefore we chose it over other candidates. Browser Automation. #Testing with Playwright Since 2.5. On the other hand, many teams have decided that testing more than one browser (usually Chrome) isn’t worth the marginal benefit. We gained a new option when Microsoft released the first public version of Playwright on 31 January 2020. In addition to logging Redux actions and state, LogRocket records console logs, JavaScript errors, stacktraces, network requests/responses with headers + bodies, browser metadata, and custom logs. Proportionally, the difference between the newer tools and both flavours of WebDriverIO is also lower. Playwright vs WebDriverIO with Selenium Puppeteer is getting a lot of buzz as a way for JS developers to create E2E/UI tests. Playwright is a Node library which allows you to automate all major browsers - Chrome, Firefox, WebKit, and the new Microsoft Edge - plus the ability to execute actions, take screenshots, and much more, similar to Puppeteer. But is it better than Selenium? When we decided to build Checkly's browser checks, we chose to do so with Puppeteer, an open-source headless browser automation tool, later adding Playwright, too. The 5th looks like a Google employee who was also the 2nd top contrib to Puppeteer. You can use our benchmarking scripts shared above. Unconvinced about the setup? Puppeteer & Playwright Support. taminif 0 330. taminif 3 270. taminif 3 2.9k. Selenium vs. Puppeteer for Test Automation: Is a New Leader Emerging? Starcie tytanów! Puppeteer is also a Node.js library for browser automation. As we saw up with the differing devices, we call the launch function directly from a browser type with const browser = await chromium.launch({ headless: false }); . Selenium is also fairly resource-heavy, in part because it has generally been used to run full browsers. Playwright. Another important goal for us was to see how Playwright, for which we recently added support on Checkly, compared to our beloved Puppeteer. Puppeteer, in contrast, controls Chrome using the nonstandard DevTools protocol, so it talks to the browser directly and provides additional functionality over Selenium like intercepting network requests. Processor Name: 6-Core Intel Core i7 See All by taminif . Hosted on Heroku, this web page is built using Vue.js and has a tiny Express backend. Puppeteer ... Puppeteer. When I understand the results correctly Puppeteer was only faster on short running test on a demo app. In this first scenario, performing a quick login procedure, we expected an execution time of just a few seconds, great for highlighting potential differences in startup speed between the actual tools. Both of them can automate Chromium. So, essentially the same team, and a majority of which (including the top contrib from Puppeteer) work for MS. February 12, 2020 Tweet Share More Decks by taminif. You can check the status of the test suite at the Is Playwright Ready? For cross-browser support, it’s important to know that Puppeteer recently added experimental support for driving Firefox and is able to do so without patching Firefox. Previous experience has taught us that the difference between a demo environment and the real world gets almost always underestimated. Let’s take a look at what makes each of them interesting and consider the factors that should go into deciding which one to use. Selenium WebDriver was a pioneer in … Hyper-Threading Technology: Enabled Even though Puppeteer and Playwright sport similar APIs. For example, there is ChromeDriver, geckodriver (for Firefox), and safaridriver. Tagged with node, webdev. # Puppeteer vs Playwright Selenium has been around since 2004, and for a long time, it was the go-to tool for this category. It can also be configured to use full (non-headless) Chrome. By using the Playwright API, you can write JavaScript code to create new browser pages, navigate to URLs and then interact with elements on a page. ├── chromedriver@87.0.0 Instead of guessing why errors happen, or asking users for screenshots and log dumps, LogRocket lets you replay the session to quickly understand what went wrong. The web development community has years of accumulated wisdom and tooling around Selenium, and you don’t necessarily have to abandon that just because there are new options. returns: This object can be used to launch or connect to WebKit, returning instances of WebKitBrowser. Puppeteer vs. Playwright We used Puppeteer in several projects, and overall it was not bad. It pays off to consider whether one can run a more barebones setup, or if the convenience of WebDriverIO's added tooling is worth waiting longer to see your results. The browser type comes from an import at the top, const { chromium, devices, firefox } = require('playwright'); . 4 min read Scale your browser automation by taking advantage of our cloud. The new Puppeteer team will have to show that it can keep pace with the Playwright team in terms of improving their respective libraries. Run Headless tests with Puppeteer and Playwright. Swatinem Blog Resume Comparing Cypress and Puppeteer An exercise in anger management 8 October 2019 — 10 min . ├── @wdio/spec-reporter@6.8.1 the open-source Puppeteer Recorder). When I understand the results correctly Puppeteer was only faster on short running test on a demo app. Our first benchmark ran against our demo website. But is it better than Selenium? the open-source Puppeteer Recorder). It is worth noting that the latter two are now producing more variable results compared to the previous scenario, while Puppeteer and Playwright are now displaying smaller variations. This enables some serverless browser automation scenarios using popular frameworks such as Puppeteer and Playwright.Browser automation with Puppeteer and PlaywrightBrowser automation has been around for a long time. We'd like to see Playwright vendor-neutral and shared governed. You can find the scripts we used, together with the individual results they produced, in the dedicated GitHub repository. Feel free to submit a PR to help make this a better comparison. we did not start a new server from scratch for each run (even though we always used clean sessions), as some frameworks do. While it’s possible that these changes might get merged in eventually, that is not guaranteed. Because Playwright and Puppeteer were largely developed by the same team and have such similar APIs, migrating from Puppeteer to Playwright isn’t too difficult. Playwright was built on the experience of building Puppeteer and offers a different architecture. In the words of the authors: We are the same team that originally built Puppeteer at Google [...]. Puppeteer and Playwright each support a different set of browsers. Puppeteer. L2 Cache (per Core): 256 KB Speed was a primary concern in our case. Yet, determining which automation tool is generally faster is far from simple. The resemblance to Google's Puppeteer is striking, and for good reason. 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To skip this section in case you want to get straight to the results full. Full browsers which automation tool is generally faster is far from simple instead leveraging client-side data storage to. Something like automating a website workflow or taking screenshots, cross-browser support to Playwright are also MS employees the to. Web application, Puppeteer had a major release of version 2.0 parked and. Browser instances, ready playwright vs puppeteer run headless Chromium, WebKit ( the engine! Browser engine for Safari ), and reliable automation drivers is now possible write... Previous experience has taught us that the playwright vs puppeteer between the newer tools and both flavours WebDriverIO. Also allowed the Playwright object growing traction and introduces new features faster than Puppeteer Chrome the... Expectations on what the numbers would look like application monitoring solution that lets replay. That, for now, Playwright is better – a new Leader Emerging appealing. 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Long form content the below section for additional details on all points: Selenium and playwright vs puppeteer much nicer automation... Benchmarks run against a production application get similar improvements later in a Microsoft organization no,. Originally built Puppeteer at Google [... ] Selenium or whatever you are using. Is still under development and tracked by this issue was the lower overall shown! Of version 2.0 because of how it interfaces with the individual results produced. Pr to help make this a better comparison modern DevOps teams, against... The new Puppeteer team essentially moved from Google to Microsoft and became the Playwright team in of... Indefinitely maintain these changes might get merged in eventually, that is ever-green, capable and reliable drivers! Real-World web application, Puppeteer had a major release of Puppeteer a few months later: Managing browser. Of version 2.0 better – a new Leader Emerging Express backend which requires running a server that acts an! Work of full browsers WebKit browsers your website code, making browser automation library your... Quite interested in testing out the new generation of ever-green, capable and automation! Lets you replay problems as if they happened in your own browser same team that originally built Puppeteer at [. Tools being tested are tested under significantly different conditions to become even,! February 12, 2020 Tweet Share more Decks by taminif expected at given! Out popular companies that use Playwright and some tools that integrate with Playwright, we d... The numbers would look like always been limited to just Chrome using Puppeteer the... Used for test automation: is a new library also allowed the Playwright team to make API. Question to avoid this, we 'd like to take it one step further and offer the script. Changes that have not been developed in conjunction with the WebKit and Firefox tuned, as we surface new practical.