Guideline: Writing White-box Tests |
Write white-box tests that validate small increments of new code that's been recently created.
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Related Elements | Developer Implement the Solution
Main Description
A white-box test approach should be taken to verify a unit's internal structure. Theoretically, you should test every possible path through the code, but that isn't always possible. At the very least you should exercise every decision-to-decision path (DD-path) at least once because you are then executing all statements at least once. A decision is typically an if-statement, and a DD-path is a path between two decisions. To get this level of test coverage, it is recommended that you choose test data so that every decision is evaluated in every possible way.
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Guidelines | Developer Testing
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