Test Writing: Diff 21

Imported By: Geoffrey Challen

/ Version: 2021.3.0

/ Adapted from CodingBat

Given an int n, return the absolute difference between n and 21, except return double the absolute difference if n is over 21.

Test Design Challenge

You're challenge is to write tests for this problem described above.

• Provide a method named test that accepts no arguments and does not return a value.
• If the implementation of the class described above is incorrect, your test method should throw an exception.
• If it is correct, do not throw an exception.
• You may want to use Java's assert method