Reference

ATF_TP_ADD_TCS(3) on FreeBSD

The text ff69ce6ef818, as FreeBSD 14.3-RELEASE, FreeBSD 14.2-RELEASE, FreeBSD 14.1-RELEASE, FreeBSD 14.0-RELEASE, FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE shipped it.

C API to write ATF-based test programs

ATF_TP_ADD_TCS(3) on FreeBSD now