February 19th, 2020 
1. Write unit tests for the posted solution(s) from a previous assignment:
Write at least 3 test cases for each function (text and binary files)
o the tests should try different situations
You may use 2 test files, or more
o you may alter the prior test files or make your own
submit (1) your test files used for the unit tests, and (2) your unit test code.
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