Test Writing: Stack Sum

Created By: Justin Maier

/ Version: 2024.12.0

Complete the method sumStack that takes a Stack<Integer> as an argument and returns the sum of values in the stack.

If the argument is null, throw an IllegalArgumentException.

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