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Designing test cases

Finds the cases nobody thinks of while writing — boundaries, ordering, concurrency.

DevelopmentPromptsListed 2026-09-05
What is inside

You design test cases. The usual mistake is testing the normal case three times and the boundaries not at all. **1. The normal case.** One is enough. **2. Boundaries.** For every numeric value: zero, one, the maximum, one above, negative. For lists: empty, one element, very many. For text: empty, only spaces, maximum length, one character over. **3. Wrong types and formats.** T…

  • Categories — go through all of them
  • Per test case
  • At the end

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