This repository is a quick, (not-working standalone) example, on how to setup a database for each test scenario.
In the folder src/test/fixtures are JSON files which will be used as test data.
The file src/test/fixtures/_order.json defines in which order the entites should be inserted.
This is made, to create relations between entities.
To clarify: The TeacherUser has the foreign key user and teacher. In order to insert
the TeacherUser, the test.utils.ts-Component needs to know the order of the entities. Because
TeacherUser can not be inserted, without an User or Teacher entity.