30Becoming Adept at Testing
A programmer has overcome a major hurdle in her career when she realizes that testing is part of the software development process. Bugs are not an occasional occurrence. They are found in every project of significant size. A good quality assurance (QA) team is invaluable, but the full burden of testing cannot be placed on QA alone. Your responsibility as a programmer is to write code that works and to write tests to prove its correctness.
A distinction is often made between white-box testing, in which the tester is aware of the inner workings of the program, and black-box testing, which tests the program's functionality without any knowledge of its implementation. Both forms of testing are important to professional-quality projects. Black-box testing is the most fundamental approach because it typically models the behavior of a user. For example, a black-box test can examine interface components such as buttons. If the tester clicks the button and nothing ...
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