Testing requirements:

Setup

Copy test world to run/saves
Copy test.zs to run/scripts
Inject hook to know when the game has fully loaded and automatically load up testing world?
Run game with ALL mods enabled
Make a logger readout that logs the state of all tests? or just use JUnit?
Check that DJ2Addons is loaded, DJ2AddonsCore is loaded, and <something>
Run two checks on the world or just one? one at world load and one at ~500 ticks after, or just do the second one?

World checking for:

Making sure datafixers change blocks/tiles properly with correct metadata and NBT,
- Place blocks in defined positions and reference their hardcoded position
Making sure recipes can work properly and machines aren't borked,
- Bewitchment - Witches Oven, get minrep
Checking behavior
- Hellfire Forge input into output slot
  - Wire a hopper to try to insert into the output slot, code check if item exists in the output slot

Code checks

Ensure mods are loaded properly (dj2addons and dj2addons core)
Ensure all Mixin configs execute (can use [DJ2AMixinConfig] to validate that each mixin has been encountered)
Registering items through CT API
- validate by querying registry
Validate state of altered objects
- e.g. hellfire forge - crafting time