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Criterion

★ 2,290 Open GitHub ↗

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

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[![Documentation (Stable)](https://img.shields.io/badge/docs-stable-green)][online-docs]
[![Documentation (Bleeding)](https://img.shields.io/badge/docs-bleeding-orange)][online-docs-latest]

A dead-simple, yet extensible, C and C++ unit testing framework.

![Screencast](https://raw.githubusercontent.com/Snaipe/Criterion/bleeding/doc/screencast.gif)

## Philosophy

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:

* [x] C99 and C++11 compatible.
* [x] Tests are automatically registered when declared.
* [x] Implements a xUnit framework structure.
* [x] A default entry point is provided, no need to declare a main
  unless you want to do special handling.
* [x] Test are isolated in their own process, crashes and signals can be
  reported and tested.
* [x] Unified interface between C and C++: include the criterion header and it *just* works.
* [x] Supports parameterized tests and theories.
* [x] Progress and statistics can be followed in real time with report hooks.
* [x] TAP output format can be enabled with an option.
* [x] Runs on Linux, FreeBSD, macOS, and Windows (Compiling with MinGW GCC and Visual Studio 2015+).

## Downloads

### Packages

| Platform | Command |
| --- | --- |
**Ubuntu** (>=21.04) / **Debian** (>=11) | `apt-get install libcriterion-dev`
**Gentoo** | `emerge -a dev-libs/criterion`
**Arch Linux** | `pacman -S criterion`
**macOS** | `brew install criterion`
**Nix** | `nix-shell -p criterion`
**FreeBSD** | `pkg install criterion`

If you'd like to see Criterion included in your favorite distribution, please reach out to their package maintainers team.

### Binary archives

Binary releases for Linux x86\_64 are available [on the release page](https://github.com/Snaipe/Criterion/releases).

If you have a different platform, you can still [build the library from source](http://criterion.readthedocs.org/en/latest/setup.html#installation).

## Developer Resources

### Documentation

An online documentation is available on [ReadTheDocs][online-docs]
([PDF][pdf-docs] | [Zip][zip-docs] | [Epub][epub-docs])

### Samples

Sample tests can be found in the [sample directory][samples].

* [A simple test][sample-simple]
* [Using multiple suites][sample-suites]
* [Writing assertions][sample-asserts]
* [Adding test fixtures][sample-fixtures]
* [Tests with signals][sample-signal]
* [Using report hooks][sample-report]

### Getting help

| Channel | Description |
| --- | --- |
[![Ask a question in GitHub discussions](https://img.shields.io/badge/github-Ask%20a%20question-46BC99.svg)][gh-discussions] | Ask a question in GitHub discussions
[![Subscribe to the mailing list](https://img.shields.io/badge/ml-criterion@freelists.org-46BC99.svg)][mailing-list] | Criterion mailing list on freelists.org

### Misc

* [autotools skeleton for projects with criterion tests][autotools]
* [CMake find module for Criterion][find-module]

## Credits

Criterion is built with the following projects:

* [boxfort](https://github.com/diacritic/BoxFort)
* [debugbreak](https://github.com/MrAnno/debugbreak)
* [libffi](https://sourceware.org/libffi/)
* [klib](http://attractivechaos.github.io/klib/)
* [libcsptr](https://github.com/Snaipe/libcsptr)
* [nanomsg](http://nanomsg.org/)
* [nanopb](http://koti.kapsi.fi/jpa/nanopb/)

Logo made by [Paul Bouigue](http://www.cargocollective.com/pbouigue).

[online-docs]: http://criterion.readthedocs.org/
[online-docs-latest]: http://criterion.readthedocs.org/en/latest
[pdf-docs]: http://readthedocs.org/projects/criterion/downloads/pdf/latest/
[zip-docs]: http://readthedocs.org/projects/criterion/downloads/htmlzip/latest/
[epub-docs]: http://readthedocs.org/projects/criterion/downloads/epub/latest/

[samples]: ./samples/
[sample-simple]: ./samples/simple.c
[sample-suites]: ./samples/suites.c
[sample-asserts]: ./samples/asserts.c
[sample-fixtures]: ./samples/fixtures.c
[sample-signal]: ./samples/signal.c
[sample-report]: ./samples/report.c

[autotools]: ./dev/autotools
[find-module]: ./dev/cmake/cmake/FindCriterion.cmake

[mailing-list]: http://www.freelists.org/list/criterion
[gh-discussions]: https://github.com/Snaipe/Criterion/discussions/new?category=q-a

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