This fuzzer creates a json file directly from bytes.
HFUZZ_RUN_ARGS="--dict=json.dict" cargo hfuzz run fuzz_json
To run this fuzzer you need to be able to run cairo-compile command from the fuzzer folder beforehand.
To run the fuzzer you need to have installed cargo-fuzz. If not, use the command cargo +nightly install cargo-fuzz
To run simply use cargo +nightly fuzz run --fuzz-dir . cairo_compiled_programs_fuzzer
We use nightly for this fuzzer because cargo fuzz runs with the -Z flag, which only works with +nightly.
To run the diff fuzzer on various cairo hints, go to the root of the project and run
make fuzzer-deps if you haven't before, this should only be run once. Then, you can call
make fuzzer-run-hint-diff to run the fuzzer.
For more documentaion, check out the diff_fuzzer README