It is correct but is it fast?

This is a past event

5 people went

Union St. Co-working space

18-20 Union Street, Sheffield, S1 2JP · Sheffield

How to find us

Our meetup will take place at our usual venue, Union St. After the meetup, we’ll be heading to The Devonshire Cat for drinks and a chat.

Location image of event venue


Acceptance and unit tests will help you to deliver working software and guard it against regressing into a complete mess.

What is not guaranteed is that the code will remain performant. Without performance tests, it’s easy to refactor your way into slow code.

Let’s see how we can change this!

About our speaker

Piotr Murach is a software engineer building things on the web.

He has a special interest in tooling, automation, and testing. He is a creator of over 50 Ruby gems including a framework called TTY for building intuitive and sleek command line applications.

If you’re interested in his ruminations on software, technology and more, visit