Proof of concept on how to test some logic defined in your DB (e.g. pure_db_logic(a int)).
In order to demonstrate the integration with a DB via JDBC, the most external script (scripts/integration_tests.sh)
spins up a dockerized Postgres DB instance, initializes it with the function defined in schema.sql and
runs the test by connecting to the dockerized DB and checking the SELECT pure_db_logic(123) result.
Scala-CLI - IntelliJ IDEA setup: guide.