SMRTR ProgrammingFeb 1, 2026DZone

Automating TDD: Using AI to Generate Edge-Case Unit Tests

SMRTR summary

Traditional TDD encourages optimistic testing focused on happy paths, missing critical edge cases. This approach inverts the workflow by using AI as an adversarial partner to identify vulnerabilities and boundary conditions before implementation. A practical example demonstrates building a payment validator where AI identifies floating-point precision errors, negative amount attacks, and currency normalization issues, forcing developers to write more robust code from the start.

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