All targets use libfuzzer via cargo-fuzz. This repo's run_fuzz.sh is a convenience wrapper that automatically starts multi-process fuzzing campaigns. Usage:

./run_fuzz.sh <target_name>

The arena (internal-use only) relies on a non-standard Vec implemented via a dependency, so the goal of fuzzing is to verify our use of the safety and reliability of this 3rd-party implementation. For structure-aware fuzzing:

cargo fuzz run sg_arena

The goal of fuzzing is to ensure "lock step" with std::collections::BTreeSet. For structure-aware, differential fuzzing:

cargo fuzz run sg_set

The goal of fuzzing is to ensure "lock step" with std::collections::BTreeMap. For structure-aware, differential fuzzing:

cargo fuzz run sg_map

Both the SgSet and SgMap APIs are built atop SgTree, so their respective targets already provide SgTree coverage.