There are unit tests that will validate each function returns the expected values. The unit tests are in the file test$\_$all.py$.$ You can test individual functions as you work. There is a test class for the logic section $($TestLogicFunctions$)$ and Boolean $($TestBooleanFunctions$)$ that you can run as a group. If you want to run all the tests, click the green arrow by $"$if $\_\_$name$\_\_==\text{'}\_\_$main$\_\_\text{'}$: $"$ at the bottom.