** 2022-12-30: THIS PROJECT IS DEPRECATED **
Until this issue is fixed, I recommend using CircleCI and the technique outlined in Start unit testing your Drupal and other PHP code today, October 16, 2019, Dcycle Blog for unit testing
To run unit tests, for example, for Unit Test Tutorial:
git clone https://github.com/dcycle/drupal-tester.git
cd drupal-tester/
mkdir -p modules
cd modules
git clone --branch 8.x-1.x https://git.drupalcode.org/project/unit_test_tutorial.git
cd ..
./scripts/test.sh "--verbose --suppress-deprecations unit_test_tutorial"
docker-compose down -v