Fuzz Testing

An introduction to fuzz testing using a circular queue implementation as the example. The post explains the concept of throwing random inputs at code to uncover bugs, contrasts it with hand-crafted corner-case tests, and walks through a complete C implementation that runs 10 million random enqueue/dequeue operations while independently tracking queue state to verify correctness. It also covers testing return values, queue fullness/emptiness reporting, and the importance of logging seeds or operations to reproduce failures.