First of all, I would like to thank you. During the 12 hours of lectures, I was able to have a productive time thinking about the intention and purpose of writing tests. In addition, I was able to get a grasp on the vague concepts of tests, and I was able to be motivated to develop an uncompromising development spirit. In the future, I will not rest on my laurels, but will apply the test code knowledge I have learned here and there, and grow into a developer who can write tests regardless of the tools!