Don’t Let the Back-to-School Rush Expose Your ChromeOS Blind Spot

With students across the country going back to school, backpacks are packed, and Chromebooks are waking up from their summer nap. Chromebooks now account for roughly 60% of the global K-12 education device market, making ChromeOS one of the most common environments your app will run on this fall.

For engineering teams building web apps for education or school district IT teams, back-to-school season brings a predictable spike in ChromeOS traffic every single year. But a lot of teams don't realize that testing on desktop Chrome doesn't reflect how learning software behaves on ChromeOS until users start complaining. 

Chromebooks run a different operating system, often on lighter hardware, with screen resolutions and input methods you won't find on a typical laptop. A page that looks flawless on your MacBook can render or behave differently the moment a real ChromeOS user opens it.

For too long, engineering teams supporting Chromebook-heavy sectors have lacked a scalable way to mirror the real ChromeOS experience, and maintaining a fleet of physical Chromebooks across different OS versions and screen sizes burns time and budget that could go toward shipping features instead. 

ChromiumOS browser testing changes that. Now available on Sauce Labs' Virtual Device Cloud, the capability is open to every customer with Cross-Browser Testing access.

What ChromiumOS is, and why it matters

ChromiumOS is the open-source foundation underneath Google's ChromeOS. It shares the same Chromium engine, the same rendering pipeline, and the same web platform APIs. Testing against ChromiumOS gets you remarkably close to real ChromeOS behavior, minus the need to own an actual Chromebook. 

What you can do with ChromiumOS browser testing

• Live testing on ChromiumOS, letting you launch interactive sessions right from the Sauce Labs UI under Live Testing > Cross Browser.
• Automated WebDriver and Selenium tests, so you can point your existing test suite at ChromiumOS by setting platformName to ChromiumOS, browserName to googlechrome, and browserVersion to latest. No custom capabilities required.
• Six screen resolutions, ranging from 1280x720 up to 2880x1620, including the common Chromebook resolution of 1366x768.
• Sauce Connect 5 support, so you can test staging environments or apps sitting behind a firewall using tunnels you already have set up.
• The full Sauce Labs experience, meaning screenshots, recordings, and analytics on every session, offering the same visibility you already get everywhere else on the platform.

Full configurations options can be found here: https://saucelabs.com/products/platform-configurator 

Add ChromiumOS browser testing to your test matrix before fall traffic hits

Testing against ChromiumOS gives you comprehensive coverage of the platform APIs your users actually rely on, without the overhead of managing physical devices to get there.

Rendering and layout bugs that hide on a standard desktop Chrome session tend to surface quickly on ChromeOS, often appearing in front of real users. Testing against ChromiumOS lets you catch those issues in a sprint instead of a support ticket.

ChromiumOS browser testing also drops straight into the pipeline you're already running. If your team already tests with Selenium or WebDriver, adding ChromiumOS coverage means updating one capability, not rebuilding your framework. And because it runs on Sauce Labs' virtual infrastructure, you get comprehensive ChromeOS coverage without provisioning a single piece of Chromebook hardware or tracking OS versions across a physical fleet. 

And because it runs on Sauce Labs' virtual infrastructure, you can skip provisioning dedicated Chromebook hardware altogether. No juggling OS versions or screen dimensions across a physical fleet.

Getting started

Getting a ChromiumOS session running takes minutes. Review the technical documentation for full setup details, grab example configurations from the Platform Configurator, or skip straight to Live Testing > Cross Browser in the Sauce Labs UI and launch a session right now. 

The Chromebooks are already back online. Your test coverage should be too.