Testing
Explore how to effectively test and debug Java programs involving loops by using well-designed test data that covers typical, extreme, and invalid cases. Understand how to verify program correctness and ensure robustness by examining output and expected results, preparing you to create reliable and error-free loop-based methods.
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Kinds of testing data
Before we can correct an error in logic, we must recognize that an error has occurred. To do so, we need to test the program. Thus, testing and debugging are interrelated activities. Ideally, a test should try all possible paths through a program’s logic. When those paths depend on some sort of input data, designing the test data set is the immediate task.
Testing should proceed using the following kinds of data:
- Typical data
- Extreme but acceptable data
- Unacceptable or incorrect data
We want our programs to behave well under all of these conditions. That is, a program should not crash or end in an infinite loop. A well-behaved program is robust, as we stated in an earlier ...