Week 4: Unit test and first glimpse of recursion

This week we did some exercise of inheritance and exception in the lab. My partner and I were both not familiar with writing unittest cases, especially on how to check whether or not an exception was correctly raised. We checked the documentation and learned to use assertraises, and with the clarification later by the TA we successfully got it done. Checking the slides posted on past course websites can sometimes help as well. During the lecture, we saw several examples on recursion. We actually have seen examples of recursion since the very first lecture so it is becoming much easier to understand now. Dustin gave a very specific one with each execution clearly explained, which is helpful. He also introduced functional programming and functions with lambda to help us understand.