You will need nodejs v16.
To install do:
./install.sh
Then you need to launch node with (should be restarted every 5 minutes and between tests):
./fork.sh
Then you can run tests from test directory with:
npm run compile
npm run test
To see all kinds of logging, uncomment console.log lines in all *.sol files. You will need to set the block gas limit to 30M then in ganache-7.4.4/package.json "fork-celo" script.