Feat: Add fuzz testing#82
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Closes #72
Description
This PR adds property-based fuzz testing using the
hypothesislibrary to ensure thatpy-cidcan handle arbitrary or malformed input without crashing unexpectedly.Previously,
py-cidlacked fuzz tests, while Go'sgo-cidimplementation includes extensive fuzz testing.Changes
tests/test_fuzz.py.test_from_bytes_never_crasheswhich passes arbitrary byte strings up to 200 bytes tomake_cid()and ensures that only expected validation errors (ValueError,KeyError,TypeError) are raised, preventing unhandled crashes.test_cid_roundtrip_never_crasheswhich verifies that successfully parsed CIDs can be safely encoded, converted to string, and prefixed without crashing.