Don't touch tester.py.

Add your tests to homework_tests.py.

Copy your w4118_sh file to this directory.

Then run:

python tester.py


This testing script does not guarantee you will get a 100%
on the homework 1. This script is intended to help you
achieve a 100%.

To run checkpatch:
cd checkpatch
./run_checkpatch.sh /path/to/your/homework/repo

Make sure there's no erros and warnings.