catchorg / Catch2
A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)
catchorg / Catch2
eProsima / Fast-DDS
The most complete DDS - Proven: Plenty of success cases. Looking for commercial support? Contact info@eprosima.com
doctest / doctest
The fastest feature-rich C++11/14/17/20/23 single-header testing framework
boost-ext / ut
C++20 μ(micro)/Unit Testing framework