# Book published: Property-Based Testing in a Screencast Editor

**URL:** <https://discourse.haskell.org/t/book-published-property-based-testing-in-a-screencast-editor/850>\
**Category:** Announcements\
**Created:** [August 21, 2019, 7:51am UTC](https://discourse.haskell.org/t/book-published-property-based-testing-in-a-screencast-editor/850 "2019-08-21T07:51:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![owi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.haskell.org/owi/32/251_2.png) [@owi](https://discourse.haskell.org/u/owi)\
**Post date:** [August 21, 2019, 7:51am UTC](https://discourse.haskell.org/t/book-published-property-based-testing-in-a-screencast-editor/850/1 "2019-08-21T07:51:36Z")

</div>

This is a short book on using property-based testing (PBT) within Komposition, a screencast editor written in and tested with Haskell and Hedgehog. It’s based on articles published on [https://wickstrom.tech](https://wickstrom.tech/).

I’ve previously announced the articles here on the forum, but this text has received a bunch of updates, and the PDF formatting is much nicer. Also, if you’ve enjoyed my writing before, buying the book could be a way of contributing with a coffee or two. 🙂

> **[Property-Based Testing in a Screencast Editor](https://leanpub.com/property-based-testing-in-a-screencast-editor)**