// tag
#fuzztest
2 posts tagged #fuzztest.
The same assertion, as a unit test and as a fuzzer
Google FuzzTest lets one assertion serve as both a bounded property test that runs with your normal suite and a coverage-guided fuzzer you invoke on demand. Written against a deliberately buggy encoder, it found the counterexample without being asked to fuzz at all, and printed a regression test to paste back.
reflect_arbitrary: property-based test generators, inferred from your types
Corrected on 6 October 2026: reflect_arbitrary is not a published library (its repository holds only a README), the embedded demo is a reduced stand-in with a fixed-range random generator, and the printed shrinking output came from no test and is removed. The correction at the top has the details; the rest is kept as published.