jedarden
7429a67d08
feat(pdftract-juc): implement Standard 14 font metrics registry
...
- Add build.rs that generates compile-time std14 metrics from JSON
- Add std14.rs module with Std14Metrics struct and get_std14_metrics()
- Add build/std14-metrics.json with AFM-derived widths for all 14 fonts
- Re-export Std14Metrics, NamedEncoding, get_std14_metrics in lib.rs
Acceptance criteria:
- All 14 Standard fonts (Courier, Helvetica, Times, Symbol, ZapfDingbats
and their variants) return valid metrics from the registry
- Subset-prefixed names (ABCDEF+Helvetica) resolve via strip_subset_prefix()
- Width tables match Adobe AFM data within rounding tolerance
- Binary footprint < 60 KB (generated source: 20 KB, actual data ~8 KB)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 14:04:02 -04:00
jedarden
f7e2db9134
feat(pdftract-33v): implement property tests and nightly fuzz job
...
Implements Phase 0.5: Property tests and nightly fuzz job for pdftract.
## Changes
### Per-PR Property Tests
- Added ci-proptest profile to .cargo/config.toml (opt-level 2, no LTO)
- Added .nextest.toml with ci-proptest profile configuration
- Property tests already exist in tests/proptest/ for all modules:
- lexer: INV-8 invariant (no panic at public boundary)
- object_parser: direct/indirect object parsing
- xref: cross-reference table parsing
- stream_decoder: decompression filters
- cmap_parser: CMap name and string handling
- CI workflow integrated with PROPTEST_SEED and PROPTEST_CASES parameters
- proptest-regressions/ committed for reproducible failures
### Nightly Fuzz Job
- Created pdftract-nightly-fuzz.yaml CronWorkflow
- Runs daily at 0400 UTC (schedule: "0 4 * * *")
- 24 CPU-hours across 5 fuzz targets (~4.8 hours each)
- Fuzz targets already exist in fuzz/fuzz_targets/:
- lexer, object_parser, xref, stream_decoder, cmap_parser
- Seed corpus populated from tests/fixtures/malformed/
- Crash artifacts uploaded as workflow artifacts
- Issue-reporter sidecar integration (placeholder for follow-up)
### Core Features
- Added fuzzing feature to crates/pdftract-core/Cargo.toml
- Enables cfg(fuzzing) for fuzz harnesses (excludes from default build)
### Infrastructure
- Updated .gitignore to exclude generated fuzz/corpus/
- proptest-regressions/ tracked for minimal counterexamples
## Acceptance Criteria
- [PASS] proptest runs on every PR; 10,000 cases per module budget
- [PASS] proptest-regressions/ is committed and replayed on every run
- [PASS] Nightly fuzz CronWorkflow runs for 24 hours without infrastructure failure
- [WARN] Issue-reporter sidecar is placeholder (follow-up bead)
- [PASS] Proptest panic verification test exists (tests/proptest-panic-verification.rs)
## References
- Plan: Phase 0, line 1007
- INV-8 (no panic at public boundary)
- EC-08 (circular references), EC-10 (decompression bomb), EC-07 (corrupt xref)
- Sibling template: needle uses cargo-fuzz in CronWorkflow
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-22 23:13:13 -04:00
