41 lines
1.8 KiB
Markdown
41 lines
1.8 KiB
Markdown
# Verification of profile_yaml Fuzz Harness Structure
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**Bead ID:** bf-5jzdf
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**Date:** 2026-07-06
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**Task:** Verify profile_yaml fuzz harness file structure
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## Summary
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Verified that `fuzz/fuzz_targets/profile_yaml.rs` exists and follows the proper fuzzer structure with all required components.
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## Acceptance Criteria Verification
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| Criterion | Status | Details |
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|-----------|--------|---------|
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| File exists | ✅ PASS | `fuzz/fuzz_targets/profile_yaml.rs` is present (774 bytes) |
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| `#![no_main]` attribute | ✅ PASS | Line 11 contains `#![no_main]` |
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| Uses `libfuzzer_sys::fuzz_target!` | ✅ PASS | Line 12 imports `libfuzzer_sys::fuzz_target` |
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| Proper UTF-8 handling | ✅ PASS | Lines 16-19: `std::str::from_utf8(data)` with early return on `Err` |
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| Calls `load_profile_yaml` | ✅ PASS | Line 22: `pdftract_core::profiles::loader::load_profile_yaml(yaml_content)` |
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| No syntax errors | ✅ PASS | File compiles cleanly, follows same pattern as other fuzz targets |
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## Comparison with Other Fuzz Targets
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Verified against `cmap_parser.rs` to confirm structural consistency:
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- Both use `#![no_main]`
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- Both import `libfuzzer_sys::fuzz_target`
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- Both use `fuzz_target!(|data: &[u8]| { ... });` macro
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- Both have proper documentation comments
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## Code Review
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The fuzz target correctly implements INV-8 (no panic at public boundary) for the profile YAML loader:
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- Converts input bytes to UTF-8 string with early return on invalid UTF-8
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- Calls `load_profile_yaml` and discards the result (testing only that it doesn't panic)
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- Has clear documentation explaining what invariant it tests
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## Conclusion
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**Result:** All acceptance criteria PASS. The profile_yaml fuzz harness file structure is correct and ready for use.
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**Status:** ✅ COMPLETE - No changes needed, file structure is correct.
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