DEV Community: Neyts Zupan

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Neyts Zupan — Mon, 21 Jul 2025 11:52:04 +0000

The 4-Day Work Week Experiment: How 3 IT Companies Boosted Developer Output 40%

Pratham naik for Teamcamp ・ Jul 17

#webdev #devops #productivity #opensource

Block Pull Requests that make tests slower

Neyts Zupan — Tue, 03 Jan 2023 20:19:14 +0000

As a developer, I was constantly frustrated by the fact that our unit tests seemed to get slower and slower over time. It was a never-ending cycle: I'd make them faster, only to discover a month later they are slow again. It was a real drain on my productivity, and I knew there had to be a better way.

That's when I came up with the idea for BlueRacer. I wanted to create a tool that would help developers like me keep their unit tests fast and efficient, without all the hassle of constantly hunting down slow tests.

With BlueRacer, it's easy to block the merging of Pull Requests that make your tests slower. Simply install https://github.com/apps/blueracer-io on your repo, configure your test runner to output the "junit.xml" report file, and upload this file to BlueRacer.io with a single command. From then on, BlueRacer will automatically post a warning on any Pull Request that would cause your tests to run slower, giving you the opportunity to fix the slowdown before the merge.

I'm thrilled with the results I've seen since using BlueRacer. Our unit tests are running faster than ever, and I'm able to focus on my work rather than constantly worrying about other people's Pull Requests slowing me down. If you're tired of dealing with slow unit tests, I highly recommend giving BlueRacer a try at https://github.com/apps/blueracer-io.

Let me know what you think!

Faster unit tests

Neyts Zupan — Mon, 19 Dec 2022 13:26:45 +0000

Unit tests are an integral part of any software development process. They help ensure that the codebase is stable, reliable, and easy to maintain. However, as the codebase grows and evolves, it's not uncommon for unit tests to become slower over time. This can be frustrating for us developers, who have to spend more time waiting for tests to complete, and it can also be costly in terms of machine time.

That's where BlueRacer.io comes in. BlueRacer.io is a free GitHub app that helps you keep your unit tests fast by posting a performance summary on every Pull Request. With BlueRacer, you can prevent slow tests from creeping into your codebase and save heaps of developer as well as machine time.

So, how does it work? When you use your unit tests with BlueRacer, it tracks the performance of each test and generates a report. This report is then automatically posted to your Pull Request, allowing you to see at a glance how your tests are performing. If any tests are running slower than expected, you'll be alerted, so you can take action to improve their performance.

BlueRacer is easy to use and integrates seamlessly with your existing workflow. Install the GitHub App, upload the junit.xml in your CI job, and that's it! No need to worry about manually tracking test performance or manually generating reports.

In addition to saving time and improving developer productivity, BlueRacer can also help improve the overall quality of your codebase. By catching slow tests early on, you can prevent them from becoming a burden on the rest of the team and ensure that your code is as efficient as possible.

Overall, BlueRacer is a powerful tool for keeping your unit tests fast and ensuring the stability and reliability of your codebase. So if you're looking to improve your unit test performance and save time and resources, give BlueRacer a try at https://github.com/apps/blueracer-io.

Happy to hear any and all feedback!