On MacOS, the small3d unit tests and sample game can be built from the command line, just like on any other platform. However you might want to create an Xcode project, in order to use the Xcode debugger for example.

In this case, as a first step, instead of the scripts/build.sh script, the deps/prapare.sh has to be launched. Then, small3d together with its unit tests can be configured and built for Xcode as follows (execute from the main directory):

mkdir build
cd build
cmake .. -G"Xcode"
cmake --build .

The created project, build/small3d.xcodeproj can then be opened in Xcode.

There are some settings that need to be taken care of before proceeding to run and debug the unit tests though. From the Project Navigator, click on small3d, and then on the unittests target. Select Build Settings and scroll down to User-Defined. There, the CONFIGURATION_BUILD_DIR variable needs to be set to the bin directory in all cases, for example /Users/me/Source/small3d/build/bin/, rather than the differentiated directories it is set to by default, e.g. bin/Debug, bin/Release, etc.