Chapter 9, Problem 7E

Program Plan Intro

Program Plan:

• Define a class SalesItemTestto test the required method.
• Define a default constructor.
• Define two methodssetUp() method that runs before every test invocation and tearDown() method that runs after every test method.
• Define a test method testUpvoteAndDownvoteComments()used to test the counted vote balance.

Program Description:

To test the upvoteComment and downvoteComment methods also check the vote balance.