email_newsletter_api/docs/testing.md

Testing Notes

The Test Suite

• The OS will find an available port for the test suite to use.
• We use the same PostgreSQL database instance for both testing and production environment (might bite us in the ass later ?).

Testing with tokio

• Each test has to be marked #[tokio::test].
• This macro will build a new async runtime for that one test.
• By calling spawn_app(), we will get a API HttpServer running for the entire duration of the single test that the macro above belongs to.