May 2014
Beginner
1312 pages
38h 36m
English
Content preview from Programming: Principles and Practice Using C++, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,







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26. Testing
“I have only proved the code correct, not tried it.”
—Donald Knuth
This chapter covers testing and design for correctness. These are huge topics, so we can only scratch their surfaces. The emphasis is on giving some practical ideas and techniques for testing units, such as functions and classes, of a program. We discuss the use of interfaces and the selection of tests to run against them. We emphasize the importance of designing systems to simplify testing and the use of testing from the earliest stages of development. Proving programs correct and dealing with performance problems are also briefly considered.
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