Go in the smoke-test subdirectory and run:
$ ./test.sh [--get-helpers [branch|tag]]
--get-helpers [branch|tag]
forces downloading helper tools anew on specified branch or tag (default = master).
0
test passed ✔️>=1 && <=100
test passed with assigned marks ✔️-1
(=255) test failed ❌-2
(=254) code under test doesn't compile 🔨-3
(=253) test itself doesn't compile 🔫-4
(=252) generic error 😱