---
title: "Peli's blog - a great unit testing information center"
url: "https://osherove.com/blog/2004/5/22/pelis-blog-a-great-unit-testing-information-center.md"
canonical: "https://osherove.com/blog/2004/5/22/pelis-blog-a-great-unit-testing-information-center.html"
published: "2004-05-22T12:00:00"
updated: "2004-05-22T12:00:00"
tags: ["Blogging"]
author: "Roy Osherove"
description: "Peli's blog has been on my aggregator for a few weeks now. He is, among other things, responsible for mbUnit , a Generative Unit and Model-based Test Framework. his blog discusses the techniques for the stuff he does…"
usage: "Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page)."
license: "https://creativecommons.org/licenses/by/4.0/"
---

# Peli's blog - a great unit testing information center

By Roy Osherove May 22, 2004 In [Blogging](https://osherove.com/blog/category/blogging)

**Historical article** · Originally published May 22, 2004; technical details may be outdated.

[Peli's blog](http://blog.dotnetwiki.org/) has been on my aggregator for a few weeks now. He is, among other things, responsible for [mbUnit](http://mbunit.tigris.org/), a Generative Unit and Model-based Test Framework. his blog discusses the techniques for the stuff he does plus lots of other goodies.

[his latest post](http://blog.dotnetwiki.org/archive/2004/05/22/255.aspx) discusses implementing “Mutation Testing” in .net, where you “mutate” a tested component at runtime to see if the test actually catches the faults that will occur. For example, changing an “if” clause from true to false and see if the test fails. He does this using RAIL, which is a cool thing on its own that I should play with more.

Very insightful.

## More in Blogging

[All posts in Blogging](https://osherove.com/blog/category/blogging)

- May 22, 2004

    ### [Recommended C# Bloggers](https://osherove.com/blog/2004/5/22/recommended-c-bloggers.html)

- May 22, 2004

    ### [Returning to RSS bandit and a couple of requests](https://osherove.com/blog/2004/5/22/returning-to-rss-bandit-and-a-couple-of-requests.html)

- May 22, 2004

    ### [HOWTO: fight back the current spam scum](https://osherove.com/blog/2004/5/22/howto-fight-back-the-current-spam-scum.html)

- May 21, 2004

    ### [Comment spam wave](https://osherove.com/blog/2004/5/21/comment-spam-wave.html)


---

## About the author

**Roy Osherove**: Senior Solutions Architect at AWS working on AI for production and AI-driven development; author of The Art of Unit Testing and Elastic Leadership, with about 20 years of consulting and training on unit testing, TDD, team leadership and continuous delivery.

### Sites

- [RobotPaper](https://robotpaper.ai/): This blog: AI patterns and anti-patterns, AI and coding agents, and engineering leadership.
- [osherove.com](https://osherove.com): Roy's personal site. Author of The Art of Unit Testing and Elastic Leadership; consulting and training on unit testing, TDD, team leadership and continuous delivery, plus about 20 years of blog posts.
- [The Art of Unit Testing](https://www.artofunittesting.com): The Art of Unit Testing, 3rd Edition (Manning): readable, maintainable, trustworthy unit tests, plus TDD workshops in C#, JavaScript, Java and Kotlin.
- [5whys.com](https://www.5whys.com): Roy's writing on software team leadership: self-organizing teams, surviving chaos, learning mode and the Elastic Leadership model.
- [Pipeline Driven](https://pipelinedriven.org): Continuous delivery and DevOps practices: build patterns, pipeline-friendly testing, DevOps metrics and enterprise DevOps.
- [Elastic Leadership](https://www.elasticleadership.com): Elastic Leadership, Roy's framework for software team leaders (survival, learning and self-organizing modes).

### Social

- X: https://x.com/royosherove
- LinkedIn: https://www.linkedin.com/in/osherove/

### Contact

- Contact form: https://forms.gle/jQSx5KoXvrVA1JCK7

### License

Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page). License: https://creativecommons.org/licenses/by/4.0/