Top 8 C unit-testing Projects

Criterion

3 1,698 5.6 C

A cross-platform C and C++ unit testing framework for the 21st century

Project mention: Looking for unittest libraries in pure C | reddit.com/r/C_Programming | 2022-09-12

My school uses Criterion (doc). source code
Muon

2 118 5.1 C

A Micro (1k lines of code) Unit Test Framework for C/C++ (by jasmcaus)

Project mention: Can some point me to a good resource on preprocessor macros? | reddit.com/r/C_Programming | 2022-05-22

If you want type polymorphism akind to c++ template, check out https://github.com/jasmcaus/tau/blob/dev/tau/tau.h
SonarQube

www.sonarqube.org
sponsored

Static code analysis for 29 languages.. Your projects are multi-language. So is SonarQube analysis. Find Bugs, Vulnerabilities, Security Hotspots, and Code Smells so you can release quality code every time. Get started analyzing your projects today for free.
qtools

0 100 2.1 C

QTools collection of open source tools for embedded systems development on Windows, Linux and MacOS
c_koans

1 89 0.6 C

C Koans

Project mention: Github repository with "simple" code examples? | reddit.com/r/C_Programming | 2023-01-24
cauldron

5 84 0.0 C

A collection of single-file C libraries. (generic containers, random number generation, argument parsing and other functionalities) (by camel-cdr)

Project mention: SIMD-oriented Fast Mersenne Twister in C and non STD library discussion | reddit.com/r/C_Programming | 2023-02-02

It really depends on your use case, but I've written a header only PRNG library that might be interesting to you. I've also held a presentation about it, if you are interested in the specifics: "How computers generate random numbers (A guide for programmers)"
libcester

0 50 0.0 C

A robust header-only unit testing framework for C and C++ programming language. Support function mocking, memory leak detection, crash report.
clove-unit

5 26 7.5 C

Single-Header Unit Testing framework for C (interoperable with C++) with test autodiscovery feature

Project mention: Released CLove-Unit Test Adapter for Visual Studio! | reddit.com/r/unittesting | 2022-10-07

Now you can run your C/C++ unit test written with CLove-Unit (single-header library) with a UI boost on Visual Studio.
InfluxDB

www.influxdata.com
sponsored

Build time-series-based applications quickly and at scale.. InfluxDB is the Time Series Platform where developers build real-time applications for analytics, IoT and cloud-native services. Easy to start, it is available in the cloud or on-premises.
testdrive

0 2 0.8 C

An expressive single-header unit testing framework for C.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-02-02.