pdftract/notes/bf-184rf.md

bf-184rf: Forms Integration Test Scaffold

Summary

Verified and documented the existing forms integration test scaffold. The test infrastructure was already complete and functional.

Acceptance Criteria Status

✅ PASS: Test file tests/forms_integration.rs exists and compiles

• Location: crates/pdftract-cli/tests/forms_integration.rs
• File size: 10,459 bytes (314 lines)
• Compiles without errors

✅ PASS: Test discovers all PDF fixtures in tests/fixtures/forms/

• Uses walkdir crate for recursive directory traversal
• Function discover_pdf_fixtures() walks fixtures directory
• Filters for .pdf extension
• Returns sorted Vec<PathBuf> of discovered fixtures

✅ PASS: Test can be run via cargo test forms_integration

• Command: cargo test --test forms_integration
• Result: All 6 tests pass
• Test names:
  • test_discover_pdf_fixtures
  • test_forms_fixtures_discovery
  • test_extract_all_discovered_pdfs
  • test_form_field_structure
  • test_acroform_features
  • test_xfa_detection

✅ PASS: Test skeleton calls pdftract extract

• Uses Command::new(&bin).arg("extract").arg("--json").arg(pdf_path)
• Invokes built pdftract binary via pdftract_bin() helper
• Captures stdout/stderr for validation
• Reports success/failure with detailed output

Files Verified

1. crates/pdftract-cli/tests/forms_integration.rs (existing, verified)

   • 314 lines of test infrastructure
   • Helper functions for PDF discovery
   • 6 test functions covering forms extraction
   • Well-documented with module-level comments

2. crates/pdftract-cli/tests/fixtures/forms/ (directory exists, empty)

   • Currently 0 PDF files
   • Ready for fixture population

Test Infrastructure Details

Helper Functions

• pdftract_bin(): Locates the compiled pdftract binary
• fixtures_dir(): Returns path to fixtures directory
• find_pdf_fixtures(): Non-recursive PDF discovery
• discover_pdf_fixtures(): Recursive walkdir-based discovery

Test Functions

1. test_discover_pdf_fixtures: Validates fixture discovery and prints found files
2. test_forms_fixtures_discovery: Tests each fixture with pdftract extract --json
3. test_extract_all_discovered_pdfs: Comprehensive extraction test with output capture
4. test_form_field_structure: Skeleton for form field structure validation (TODO)
5. test_acroform_features: Skeleton for AcroForm-specific validation (TODO)
6. test_xfa_detection: Skeleton for XFA detection validation (TODO)

Integration Points

• Binary location: Uses CARGO_MANIFEST_DIR to find target/debug/pdftract or target/release/pdftract
• Fixtures path: tests/fixtures/forms/ relative to CLI crate root
• Dependencies: walkdir crate for recursive PDF discovery
• CLI invocation: Executes pdftract extract --json <pdf> via std::process::Command

Next Steps (Future Beads)

The scaffold is complete. Subsequent beads should:

1. Populate tests/fixtures/forms/ with real form PDF fixtures
2. Implement TODO items for form field structure validation
3. Implement AcroForm-specific validation logic
4. Implement XFA detection validation
5. Add JSON output structure verification