Yes, I do. To be honest, I did not write unit tests for my previous side projects. I just think that my codes "it works". I realized that it makes me hard to f

Yes, I do. To be honest, I did not write unit tests for my previous side projects. I just think that my codes "it works". I realized that it makes me hard to find a bug on the code when given some test cases. Developing a program is not only just "it works" but also ensure the program can handle the test cases.