# Balancing Test Coverage vs. Overhead | Interrupt **URL:** \ **Category:** Blog\ **Created:** [March 24, 2021, 9:09am UTC](https://community.memfault.com/t/balancing-test-coverage-vs-overhead-interrupt/373 "2021-03-24T09:09:49Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![discobot](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.memfault.com/discobot/32/1_2.png) [@discobot](https://community.memfault.com/u/discobot)\ **Post date:** [March 24, 2021, 9:09am UTC](https://community.memfault.com/t/balancing-test-coverage-vs-overhead-interrupt/373/1 "2021-03-24T09:09:49Z")
This article is written by an external contributor, [Erik Fogg](https://interrupt.memfault.comauthors/erikfogg) of [ProdPerfect](https://prodperfect.com/), along with Tyler Hoffman representing the firmware side of the story. Enjoy! * * * This is a companion discussion topic for the original entry at [https://interrupt.memfault.com/blog/testing-vs-overhead](https://interrupt.memfault.com/blog/testing-vs-overhead) ---
**Author:** ![shebu18](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@shebu18](https://community.memfault.com/u/shebu18)\ **Post date:** [March 25, 2021, 7:41pm UTC](https://community.memfault.com/t/balancing-test-coverage-vs-overhead-interrupt/373/2 "2021-03-25T19:41:25Z")
Interesting article and well written. is there a video you would recommend for starting with unit testing C? I find that doing unit testing in embedded is hard if the code/decisions depend on the HW the code is running on. Regards, CG. ---
**Author:** ![discobot](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.memfault.com/discobot/32/1_2.png) [@discobot](https://community.memfault.com/u/discobot)\ **Post date:** [March 25, 2021, 7:41pm UTC](https://community.memfault.com/t/balancing-test-coverage-vs-overhead-interrupt/373/3 "2021-03-25T19:41:25Z")
---
**Author:** ![ncmiller](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.memfault.com/ncmiller/32/131_2.png) [@ncmiller](https://community.memfault.com/u/ncmiller)\ **Post date:** [April 27, 2021, 3:27pm UTC](https://community.memfault.com/t/balancing-test-coverage-vs-overhead-interrupt/373/4 "2021-04-27T15:27:24Z")
@shebu18 - Not a video, but this book is surprisingly easy to read and is probably the best resource on the topic: [Test Driven Development for Embedded C (Pragmatic Programmers): Grenning, James W.: 9781934356623: Amazon.com: Books](https://www.amazon.com/Driven-Development-Embedded-Pragmatic-Programmers/dp/193435662X). The book goes into great detail about how to test in the presence of HW dependencies using mocks and fakes.