Open Source C Unit Testing Tools

Cutter is a Unit Testing Framework for C and C++. Interface of Cutter is easy to write and easy to debug your code.

CuTest lets you write unit tests for your C code. You should use it because: (1) It has the cutest name, (2) It looks and feels like JUnit, (3) It is cross-platform, (4) It ships in a single .c and .h file for ease of deployment.

Cue is a Unit Testing Framework for C. This framework supports making and execution of the unit test for C programs. Cue aims at the framework that beginner of Test First Programming or XP(eXtream Programming) can easily use.

A port of the well-known C Unit Testing Framework on Visual Studio with a binary installers for the library. Projects using CUnit for their tests only need to install the binary version. Download the binary installers from the "Files" section.

Most test frameworks for C require a lot of boilerplate code to set up tests and test suites -- you need to create a main, then register new test suites, then register the tests within these suites, and finally call the right functions. This gives the user great control, at the unfortunate cost of simplicity. Criterion follows the KISS principle, while keeping the control the user would have with other frameworks. Supports parameterized tests and theories. Progress and statistics can be followed in real time with report hooks. TAP output format can be enabled with an option. Runs on Linux, FreeBSD, macOS, and Windows (Compiling with MinGW GCC and Visual Studio 2015+). If you'd like to see Criterion included in your favorite distribution, please reach out to their package maintainers team. A default entry point is provided, no need to declare a main unless you want to do special handling.

Embedded Unit is unit testing framework for Embedded C System. Its design was copied from JUnit and CUnit and more, and then adapted somewhat for Embedded C System. Embedded Unit does not require std C libs. All objects are allocated to const area.

MPIUnit is a unit testing framework for MPI programming.

A unit testing framework, that supports multiple programming languages through back-ends and allows multiple interfaces through front-ends.

A robust C unit testing framework

cfix is a xUnit unit testing framework for C and C++, specialized for Win32 and NT kernel mode. The aim of the framework is to make the development of test suites as easy as possible while fully exploiting the services provided by Windows.

Base C/C++ library providing unit testing framework with integrated memory leak and buffer overrun detection.

ordeal - minimalistic C Unit Testing framework with an eye on simple deployment in existent projects (just copy and use).

xUnit is a XP style unit testing framework. xUnit uses a protocol between a front-end to display test results and a test driver linked into applications - removing the link time dependencies between the application and the graphics, formatting libraries.