Random   •   Archives   •   RSS   •   About   •   Contact

The Pyramid community taught me the importance of test driven development

Sontek's patch

I greeted the UPS man in the middle of the street to sign for my new Lenovo ThinkPad T430. Because this was My first brand-new laptop purchase I rationalized the time I spent tracking the package from the factory in China to my hands in Connecticut. Once inside, I opened the box and started installing Fedora 17. I couldn't help but to take in the new-electronics smell.

I've been without a laptop for more than a month so I was eager to get my development environment configured. Most of my tools ship with vanilla Linux, vim, python, hg mercurial, chromium browser, etc. My first goal was to get a development copy of linkpeek.com running locally. This took about 5 minutes and it seemed to be working fine until I noticed a few pages had errors. The errors seemed to be caused by a difference between Pyramid 1.3 and 1.4a1. But what was failing?

I posted a short message in #pyramid about the bug and minutes later I had multiple developers prodding for hints. "Could you post the whole traceback?", "What does your view look like?". I answered quickly and attempted to explain what I thought was going on. Turns out I was close but before I could finish explaining the problem, sontek had a working one-character-fix and was in the process finishing the tests to prove the patch. He also explained what I should do in the interim to patch locally.

In the next 4 hours a pull request was submitted to the upstream master and the patch was peer reviewed, accepted, and integrate by mcdonc. That impressed me, a lot. All Pylon Projects have strict policies about test coverage and now I understand why. Tests not only help produce better bug-free software but also act as a powerful tool when proving the validity of a patch. I plan to devote the next couple weeks to making test-driven-development a habit.




Want comments on your site?

Remarkbox — is a free SaaS comment service which embeds into your pages to keep the conversation in the same place as your contentr. It works everywhere, even static HTML sites like this one!

Remarks: The Pyramid community taught me the importance of test driven development

© Russell Ballestrini.