Question

Select any tool that provides statement and decision code coverage. Utilizing the VendingMachine.java code Download VendingMachine.java codegiven to you, develop a set of test cases using JUnit for your code based on the following requirements: Takes in an integer input Allows users to select between three products: Candy (20 cents), Coke (25 cents), Coffee (45 cents) Returns the selected product and any remaining change If there is not enough money to buy the product, displays the amount necessary to buy the product and other products to purchase. Execute the program with your test cases and observe the code coverage of your test cases. The goal is to reach 100% in statement coverage and at least 90% decision coverage. For decision coverage, please make sure to test all the decisions except the False decision for line 32 (input < 45).

Answer 1

Using JUnit, you can develop a set of test cases for the VendingMachine.java code to achieve 100% statement coverage and at least 90% decision coverage.

Step-by-step explanation:

To achieve statement and decision code coverage for the VendingMachine.java code, you can use JUnit as a tool. Here is an example of a set of test cases:

1. Test Case 1: Input = 20 (Candy), Expected Output = Candy
2. Test Case 2: Input = 25 (Coke), Expected Output = Coke
3. Test Case 3: Input = 45 (Coffee), Expected Output = Coffee
4. Test Case 4: Input = 10 (Insufficient funds for any product), Expected Output = Not enough funds to buy any product. Amount necessary: $0.20. Other products to purchase: Coke ($0.05), Coffee ($0.25)

By executing these test cases, you can observe the code coverage of your test cases. The goal is to reach 100% statement coverage and at least 90% decision coverage. Remember to test all decisions except the False decision for line 32 (input < 45) to achieve the desired decision coverage.