what can be tested? - [ ] specs-related tests: consider using [amethyst_test](https://github.com/amethyst/amethyst/tree/master/amethyst_test) as a reference - [x] `Tile` / `Floor` methods - [x] `UnitType::draw` - [ ] `Profile` from/to toml methods - [ ] `starter` functions - [x] `Warrior` methods