First of all, thank you for making a good lecture. Thanks to you, I was able to approach React testing more easily. I liked the easy and clear explanation of jest, testing libaray react, and msw. I also liked the TDD method of conducting the lecture. However, first of all, I was disappointed that the PDF material was difficult to view. And although it seemed to be intended to some extent, the code felt a bit unclean. In particular, the contexts part seems to have become more complicated because it processes two states at once. Although it is a testing lecture, it would be easier to follow if you provided a cleaner code, so it is a pity. Still, thank you for leaving a good lecture!