# Fuzzing Infra To add a new test, define a `TestSpec`-based class in a file in the `tests/` folder. You can choose which tests to load from which file: ```bash RUN_FILES="hcq,allocator" python3 extra/hcqfuzz/fuzzer.py ``` Or skip tests from any file: ```bash SKIP_FILES="allocator" python3 extra/hcqfuzz/fuzzer.py ```