Creates a django test database using a postgres template database.
Django template test database is a testing tool for django that provides an alternative to fixtures when tools like FactoryBoy aren’t suitable. The use case is simple: for integration tests that require the test database to be populated with a specific (large) set of test data before they will even run. Loading this test data using fixtures would be very slow. This problem is solved by loading the test data during database creation at the database level and allows us to avoid all of the overhead by loading data through django.
How it works
It uses postgresql database templates to create the test database. Because of this it only works with postgresql, however if you are interested in extending this to support other database backends feel free to do so.
To make this work we need three parts:
- A custom test runner to customize test db creation
- Custom test cases to prevent the test database being flushed after each run
- Decorator that allows existing test cases to run against a template test database.