Results 2 issues of Mao Chao

Hi, zm recently I start refactoring our test, move large object creation from `let` to [let_it_be](https://test-prof.evilmartians.io/#/recipes/let_it_be), which will change object creation from `before_each` hook into `before_all` hook, then I found...

Hi, there I read readme a lot of times and still confuse about it, can someone explain it in detail, especially about depend_on? Sorry for my poor english. ``` Any...