This website is really good for practicing. The 1st partial will be difficulty (kyu) 8, 7, 6. Those are some of the easiest exercises on the website but they are good practice for the exam.
This is a selection of exercises some from codewars some from other places. They have asserts and also the solutions. Some asserts may have mistakesl, I am sorry for the inconvenience.
hackerrank.com/dashboard
For the ones doing the programming general exam, Lucibello said he takes the exercises from the hackerrank website. The difficulty of the exercises in the exam will be medium. However, not all medium exercises are feasible based on the few things he taught us.