Software Quality Assurance Practice Exam

Which function asserts that the input value must be a positive integer?

1. checkArgs()

2. primeCheck()

3. assertFalse()

4. main()

The correct answer is: checkArgs()

The function that asserts that the input value must be a positive integer is typically designed to validate input parameters and ensure that they meet specified criteria. In this context, the function likely named `checkArgs()` seems to be responsible for verifying that arguments passed to it comply with the rules set; one of which would be that the value should be a positive integer. Validation functions like `checkArgs()` are common in programming, as they help maintain data integrity by ensuring that only acceptable values are processed further in the program. By having such a check, the function prevents errors that could arise from invalid input, such as negative numbers or non-integer types, which could lead to unexpected behavior in the program. The other options serve different purposes: `primeCheck()` is likely focused on determining whether a number is prime, `assertFalse()` is a generic assertion method, and `main()` is typically the entry point of a program. None of these functions are specifically designed to validate if an input value is a positive integer. Therefore, `checkArgs()` stands out as the correct choice that fulfills the requirement stated in the question.