SMRTR ProgrammingAug 23, 2026Daily.dev

fuzz: A PestPHP Plugin for Coverage-Guided Fuzz Testing.

SMRTR summary

Fuzz is a PestPHP plugin that brings coverage-guided fuzz testing into your existing Pest suite. Instead of only testing inputs you already thought of, it mutates seed values, keeps mutations that hit new code paths, and hunts for crashes — TypeErrors, bad JSON shapes, missing keys — that hand-authored datasets miss. It wraps nikic/php-fuzzer with a clean Pest-style API.

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