The hook will lint and test all code before committed:
$ cp pre-commit .git/hooks/pre-commit
Run npm run build-docker the first time or any time you change dependencies.
After the first build you can simply run npm run test-integration and it will run integration tests inside the already built docker image.
Integration tests should be few and only for ensuring the overall beanstalkd communications work as intended. Rely on unit tests and coverage for productivity.