We were also quite interested in testing out the new DevTools mode. In the case of Selenium benchmarks, our scripts ran against a standalone server, i.e. Yet these are still changes that have not been developed in conjunction with the WebKit and Firefox teams. Selenium is a time-tested tool, but Puppeteer, a new contender, has some powerful features that … 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. taminif. If you are doing something like automating a website workflow or taking screenshots, cross-browser support may not even matter to you. 9.4 9.9 Puppeteer VS Playwright Headless Chromium, WebKit, and Firefox with a single API. Swatinem Blog Resume Comparing Cypress and Puppeteer An exercise in anger management 8 October 2019 — 10 min . Leveraging an automated recording tool (e.g. Playwright vs Puppeteer. Puppeteer & Playwright Support. 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. Note that even third-party browsers on iOS are required to use WebKit as their engine. Regardless, I’m thankful that Puppeteer is still under active development and is by no means an abandoned project just because the original developers moved on. Puppeteer is getting a lot of buzz as a way for JS developers to create E2E/UI tests. └── puppeteer@5.5.0. Feel free to submit a PR to help make this a better comparison. Memory: 16 GB, bench-wdio@1.0.0 /Users/ragog/repositories/benchmarks/scripts/wdio-selenium taminif 0 330. taminif 3 270. taminif 3 2.9k. It may be faster but that depends on browser too right? We don’t know for sure that Playwright’s approach of patching Firefox and WebKit will work out in the long run. These browsers do most of the work of full browsers, but they don’t actually render the UI. The launch tweet from Andrey Lushnikov (who’s Twitter bio is “former TL @ Chrome Puppeteer, former eng @ Chrome DevTools”), is responded to by Sam Sneddon who questions the cross-browser compatibility. Which browser version pinned to same? The script we ran looks a lot like a classic E2E test: it logged into Checkly, configured an API check, saved it and deleted it immediately. This is a benefit of being supported by the Chrome team. We operate a large grid of real browser instances, ready to run your headless tests. On a more complex E2E test actually Playwright was slightly better performing. Puppeteer vs. Playwright We used Puppeteer in several projects, and overall it was not bad. L3 Cache: 12 MB Runs on your own hardware or in any popular cloud platform: Google Cloud, Amazon Web Services, DigitalOcean, Microsoft Azure and so on. April 27, 2020 returns: This object can be used to launch or connect to WebKit, returning instances of WebKitBrowser. website. Even though Puppeteer and Playwright sport similar APIs. 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. Puppeteer proved that there is a lot of interest in the new generation of ever-green, capable, and reliable automation drivers. Why playwright > Puppetter. It has a unique approach of running in band with your website code, making tests more reliable. However, Selenium has a reputation for being unreliable. You can find the scripts we used, together with the individual results they produced, in the dedicated GitHub repository. Support for Firefox in cypress is still under development and tracked by this issue. Also, it looks like the top 4 contribs to Playwright are also MS employees. We suggest keeping an eye on both technologies. taminif 0 330. taminif 3 270. taminif 3 2.9k. Selenium WebDriver was a pioneer in … The Playwright team believes that due to the similarity of the core concepts and the APIs, migration between the Puppeteer and Playwright should be straightforward. Less surprising is perhaps that running Puppeteer without any added higher-level framework helps us shave off a significant amount of execution time on this very short script. 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. Feel free to skip this section in case you want to get straight to the results. Puppeteer: Yes Playwright: Yes Parallelism Grids and Infrastructure. PhantomJS was one of the more popular ones. 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. # Choosing selectors. CodeceptJS. Playwright or Puppeteer? Also interesting is just how close the results are: the chart shows the lines crossing each other continuously, as the automation protocol does not seem to make a sizeable difference in execution time in this scenario. We operate a large grid of real browser instances, ready to run your headless tests. 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. Puppeteer. Data retrieval in GraphQL with react-apollo, HTML tags every frontend developer should know, localForage: Managing offline browser storage. On a more complex E2E test actually Playwright was slightly better performing. Selenium vs. Puppeteer for Test Automation: Is a New Leader Emerging? , Active Reliability for Modern DevOps Teams, Running against a real-world web application, Puppeteer vs Selenium vs Playwright, a speed comparison. The landscape changed significantly in 2017. ├── chromedriver@87.0.0 Fluctuations in execution time might not be a big deal in a benchmark, but in the real world they could pile up and slow down a build. PuppeteerとPlaywrightの15日間の演劇 / relation of Puppeteer and Playwright. The 5th looks like a Google employee who was also the 2nd top contrib to Puppeteer. As a result, Playwright is very similar to Puppeteer in many respects. Proportionally, the difference between the newer tools and both flavours of WebDriverIO is also lower. Eventually, programmers started using headless browsers in some cases. Scaling Puppeteer & Playwright on Checkly with Terraform, Heads up: we are making a change to assertions for API checks, Improving the SSL certificate expiration alerts, Changelog: Opsgenie, Dashboard improvements, Terraform and more, Post mortem: checks with async IIFE reporting success incorrectly. Live and automated testing are supported. Last week, Microsoft announced its new “Playwright” tool, which is very much like Puppeteer and created by many of its original contributors. 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. Selenium is also fairly resource-heavy, in part because it has generally been used to run full browsers. Still, most of us having worked with Selenium for many years, we were keen to understand if these newer tools were indeed any faster. 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. Looking at the source code of the page. It is also important to note that WebDriverIO is a higher-level framework with plenty of useful features, which can drive automation on multiple browsers using different tools under the hood. The second surprise was the lower overall variability shown in the WebDriverIO runs. Puppeteer is also a Node.js library for browser automation. You can use our benchmarking scripts shared above. You can find the full data sets in our GitHub repository. Speed was a primary concern in our case. 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. To avoid this, we put together and followed these guidelines: See the below section for additional details on all points. Each browser context is isolated from other contexts in terms of cookies, local storage, etc., and each context can also have multiple pages underneath it. In this case the difference in execution time between Playwright and Puppeteer has all but vanished, with the former now coming up on top and displaying a slightly lower variability. ├── @wdio/mocha-framework@6.8.0 Another important goal for us was to see how Playwright, for which we recently added support on Checkly, compared to our beloved Puppeteer. Our friend Eduardo Riol joins us to discuss two modern tools used for test automation: Selenium and Puppeteer. It can also be configured to use full (non-headless) Chrome. It can also make sense to stick with Selenium or whatever you are currently using if it is working well for you. Number of Processors: 1 Written by Danny Guo ️ Playwright is a Node.js library for browser automation. Yet comprehensive support is an almost impossible task because of how complicated browsers have become. Run Headless tests with Puppeteer and Playwright. But how do you write the equivalent without async/await? 4 min read Scale your browser automation by taking advantage of our cloud. For example, Playwright’s page.click waits for the element to be available and visible by default. Overall, I’m glad there is healthy competition in the browser automation space. This requirement for a special server adds complexity. 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. We were therefore very keen to have the benchmarks run against a production application. we did not start a new server from scratch for each run (even though we always used clean sessions), as some frameworks do. How we improved the Lighthouse score of our landing page to 96. Hyper-Threading Technology: Enabled Run your own benchmark! We can now step back and compare the execution times across scenarios: Have doubts about the results? └── selenium-standalone@6.22.1, scripts@1.0.0 /Users/ragog/repositories/benchmarks/scripts 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. Puppeteer. Their response is that they have only patched the WebKit and Firefox debugging protocols, not the actual rendering engines. In the words of the authors: We are the same team that originally built Puppeteer at Google [...]. Playwright was built on the experience of building Puppeteer and offers a different architecture. If you compare the contributor pages for Playwright and Puppeteer, you’ll notice the top two contributors to Puppeteer now work on Playwright. Tagged with node, webdev. the open-source Puppeteer Recorder). 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. This doesn’t mean that Puppeteer won’t get similar improvements later in a new major version. Playwright is a Node.js library for browser automation. We were looking forward to this scenario, but each of us had different expectations on what the numbers would look like. 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. I hope they drive each other to become even better, making browser automation progressively easier and more reliable. taminif. 1371. It works perfectly with any app, regardless of framework, and has plugins to log additional context from Redux, Vuex, and @ngrx/store. 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 … Source, No fluff, all relevant product updates & long form content. 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. 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. 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. With Playwright, we’d like to take it one step further and offer the same functionality for all the popular rendering engines. 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 Playwright vs WebDriverIO with Selenium Hosted on Heroku, this web page is built using Vue.js and has a tiny Express backend. It recently added beta Firefox and Edge support. Our results will show the following values, all calculated across 1000 runs: Stay tuned, as we might explore these topics in upcoming benchmarks. We gained a new option when Microsoft released the first public version of Playwright on 31 January 2020. This is in part because of how it interfaces with the browser. 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. ... Puppeteer. Browser Automation. 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. Playwright could change this calculus because it makes cross-browser support easier, but it’s still a potential reason to just stick with Puppeteer. While it’s possible that these changes might get merged in eventually, that is not guaranteed. A benchmark is useless if the tools being tested are tested under significantly different conditions. In this case we chose our own, which runs a Vue.js frontend and a backend which heavily leverages AWS. Playwright supports cross browser properly. # Puppeteer vs Playwright We made this choice to limit overhead on execution time. Playwright. “Nauczalne” programowanie. 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. Selenium vs. Puppeteer for Test Automation: Is a New Leader Emerging? Google followed up headless Chrome with the public release of Puppeteer a few months later. Puppeteer vs. Playwright As mentioned, the Puppeteer and Playwright libraries are very similar to each other and even share creators. 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. With Playwright, we'd like to take it one step further and offer the same functionality for all the popular rendering engines. 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. The docs also show it’s simple to just loop through the available browsers like so: 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. The resemblance to Google's Puppeteer is striking, and for good reason. They ship Playwright with patched versions of WebKit and Firefox. These developments made it possible to write efficient tests and scripts against the same browsers that people actually use. Scout APM uses tracing logic that ties bottlenecks to source code so you know the exact line of code causing performance issues and can get back to building a great product faster. 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: Yes (managed, costly) or build your own solution; Cypress: Only in their closed source paid cloud or build your own; Puppeteer: Usually people build their own (will change soon) Playwright: Usually people build their own (will change soon) Performance Puppeteer vs. Playwright. It just means that, for now, Playwright can be easier to use for some situations. Cloud Grid. extends: EventEmitter; A Browser is created when Playwright connects to a browser instance, either through browserType.launch([options]) or browserType.connect(params). Starcie tytanów! # Choosing selectors. Stay tuned, as we surface new and practical comparisons that tell us more about the tools we love using. 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. But is it better than Selenium? Looking at the source code of the page. Support for Firefox in cypress is still under development and tracked by this issue. Selenium uses the WebDriver protocol, which requires running a server that acts as an intermediary between Selenium and the browser. Total Number of Cores: 6 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. Selenium has been around since 2004, and for a long time, it was the go-to tool for this category. It also instruments the DOM to record the HTML and CSS on the page, recreating pixel-perfect videos of even the most complex single-page apps. 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 }); . A reason to be optimistic, however, is that the Playwright team gave us these tools in the first place. I’m a fan of Puppeteer however Playwright is a much nicer browser automation library. The drama started immediately. Documentation | API reference. Puppeteer example without async/await. Unconvinced about the setup? Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API. It’s just like Google’s Puppeteer, only instead of being Chrome-only, it also “works” in Firefox and Safari. However, the Playwright team’s approach to cross-browser support is controversial. For each benchmark, we gathered data from 1000 successful sequential executions of the same script. "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. 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. 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. We wanted to support users with synthetic monitoring and testing to let them know whether their websites worked as expected at any given moment. We'd like to see Playwright vendor-neutral and shared governed. WebDriverIO handled this reliably, but the cookie injection step exploded the variability in execution time, sometimes seemingly hanging for longer than five seconds. We’d like to see Playwright vendor-neutral and shared governed. See All by taminif . 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. With Playwright, we'd like to take it one step further and offer the same functionality for all the popular rendering engines. 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. This left us wondering whether this was due to a higher startup time on Playwright's side. ├── playwright@1.6.2 Get performance insights in less than 4 minutes. The API methods are identical in most cases, and Playwright also bundles compatible browsers by default. Puppeteer & Playwright Support. You can check the status of the test suite at the Is Playwright Ready? Starting a new library also allowed the Playwright team to make the API more ergonomic in ways that would be breaking changes in Puppeteer. 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 … Differing from puppeteer, playwright allows you to launch from a different browser directly or as a property of the playwright object. Puppeteer makes it easy to get started with browser automation. So, essentially the same team, and a majority of which (including the top contrib from Puppeteer) work for MS. So if testing for your iOS users is important, Playwright should be appealing. 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). ├── @wdio/cli@6.9.1 Lastly, the decision depends on your use case. For testing specifically, Cypress has also become a popular choice. There are many other factors too. It can drive Chromium, WebKit (the browser engine for Safari), and Firefox. Puppeteer proved that there is a lot of interest in the new generation of ever-green, capable and reliable automation drivers. In addition, I remembered that at the end of last year, Puppeteer had a major release of version 2.0. It might be helpful to understand some historical context first. 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. Processor Name: 6-Core Intel Core i7 However, there doesn’t appear to be any public work on Puppeteer support for WebKit. I wondered why Playwright is better – a new tool that neatly rests on GitHub in a Microsoft organization. ├── @wdio/sync@6.10.0 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. I wondered why Playwright is better – a new tool that neatly rests on GitHub in a Microsoft organization. Browser Automation. 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. We improved the Lighthouse score of our cloud specifically, cypress has also become a popular choice that not. Benchmark is useless if the … Puppeteer example without async/await built using Vue.js and has tiny... The lower overall variability shown in the new generation of ever-green, capable, for... Draw here is that they have only patched the WebKit and Firefox debugging protocols, not actual! For all the popular rendering engines different architecture this left us wondering whether this was due a. How we improved the Lighthouse score of our landing page to 96 a benchmark is useless if the we. 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