ATF, or Automated Testing Framework, is a collection of libraries to write test programs in C, C++ and POSIX shell.

The ATF libraries offer a simple API. The API is orthogonal through the various bindings, allowing developers to quickly learn how to write test programs in different languages.

ATF-based test programs offer a consistent end-user command-line interface to allow both humans and automation to run the tests.

ATF-based test programs rely on an execution engine to be run and this execution engine is not shipped with ATF. Kyua is the engine of choice.

Formal releases for source files are available for download from GitHub:

• atf 0.23, released on March 29th, 2025.

You are encouraged to install binary packages for your operating system wherever available:

• FreeBSD 10.0 and above: install the atf package with pkg install atf.

• NetBSD with pkgsrc: install the pkgsrc/devel/atf package.

• OpenBSD: install the devel/atf package with pkg_add atf.

• Ubuntu: install the libatf-dev and atf-sh packages with apt install libatf-dev atf-sh.

Should you want to build and install ATF from the source tree provided here, follow the instructions in the INSTALL file.

• AUTHORS: List of authors and contributors for this project.

• COPYING: License information.

• INSTALL.md: Compilation and installation instructions. These is not the standard document shipped with many packages, so be sure to read it for things that are specific to ATF's build.

• NEWS.md: List of major changes between formal, published releases.

• AUTHORS: List of authors and contributors for this project.

• COPYING: License information.

• INSTALL.md: Compilation and installation instructions. These is not the standard document shipped with many packages, so be sure to read it for things that are specific to ATF's build.

• NEWS.md: List of major changes between formal, published releases.

Please use the FreeBSD-testing@FreeBSD.org mailing list for any support inquiries related to atf-c, atf-c++, atf-sh, or kyua.