As soon as the lecture starts, the test code is explained with the code created without the code implementation process, so I don't think there is any reason to pay for a lecture that is not friendly to the students. As of October 12th. --- The reason I thought the lecture was unfriendly was because I thought there was no sample code provided to follow the lecture, so I felt uncomfortable writing the same test code while watching the lecture. However, I found out later that the sample code was provided through a Github repo link. I misunderstood and left a wrong review. I'm sorry.ㅠ The lecture itself is sufficiently explained. It's concise and good. I left a comment because I was upset, but thank you for your kind reply. I don't know if you explained it before, but for those who missed it like me, if you attached it in the lecture materials section like this: Sample code provided -> [GitHub link], it would be helpful. I would appreciate it if you considered it!