[CMake] CTest periodic freeze under MacOS

[ycollette.nospam at free.fr]

Hello,

I don't really know if it's a cmake / ctest bug but when I launch tests. I added a timeout limit for each tests. This timeout is set to 120 sec.
Some tests fail after a timeout. And in the log file, the timemout has a different value. For example, it can be 280 seconds. This occurs for one tests out of 20.
Maybe this is a MacOS bug (some kernel freeze) but I don't know how to track this down to cmake or MacOS.

Best regards,

YC