New in version 3.29.

This variable is used to initialize the TEST_LAUNCHER target property of executable targets as they are created. It is used to specify a launcher for running tests, added by the add_test() command, that run an executable target.

If this variable contains a semicolon-separated list, then the first value is the command and remaining values are its arguments.

This variable can be initialized via an CMAKE_TEST_LAUNCHER environment variable.