Add property-based testing infrastructure for the lexer module with 6+
property tests covering INV-8 (no panic), string/hex roundtrips, name
length bounds, and position monotonicity. Create 8 curated fixture files
with golden token outputs for critical edge cases including EC-01 empty
file test and whitespace-only inputs.
Changes:
- Add prop_string_roundtrip to tests/proptest/lexer.rs
- Create tests/lexer/fixtures/ with 8 fixtures + .tokens.txt golden files
- Add gen_lexer_golden.rs binary for regenerating golden outputs
- Fix missing ObjRef import in marked_content_operators.rs
Acceptance criteria:
- cargo test --features proptest -p pdftract-core: 105 lexer tests pass
- tests/lexer/fixtures/ contains 8 fixtures with .tokens.txt outputs
- EC-01 empty file test: 0-byte input -> Token::Eof, no panic
- Whitespace-only file test passes
- INV-8 verified by prop_lexer_never_panics
Closes: pdftract-sy8x
Fixed compilation error in xref.rs where u64 literal 0x5DEECE66D was used
with u32 state, causing overflow. Changed state to u64 for proper Java
Random algorithm behavior.
The OCG /OCProperties parsing implementation was already complete and
all tests pass. See notes/pdftract-2a6rk.md for verification.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit implements the Cargo.lock policy for reproducible builds
across all workspace members (pdftract-core, pdftract-cli, pdftract-py).
Changes:
- Add CONTRIBUTING.md with lockfile-update workflow documentation
- Add .renovaterc.json for weekly lockfile-only PRs (human-gated)
- Add crates/pdftract-core/README.md with rationale for checked-in lockfiles
- Add notes/pdftract-49f8.md with verification note
The Argo workflow updates (pdftract-ci.yaml) are committed separately
in the declarative-config repo.
Acceptance criteria:
- PASS: Cargo.lock tracked by git, not in .gitignore
- PASS: Argo workflow templates document --locked/--frozen requirements
- WARN: Enforcement to be completed when placeholder templates are implemented
- WARN: Binary reproducibility verification deferred to pdftract-build-binaries implementation
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
