test(bf-1739m): add verification note for PdfExtractor instance creation

notes/bf-1739m.md

@@ -0,0 +1,74 @@
+# Verification Note for bf-1739m
+
+## Task
+Create PdfExtractor instance in test setup for truncated-flate tests.
+
+## Implementation
+**Status:** Already complete - no changes needed
+
+The test file `/home/coding/pdftract/crates/pdftract-core/tests/test_truncated_flate_recovery.rs` already contains multiple tests that create PdfExtractor instances using the `fixture_path()` helper.
+
+### Existing Tests that Create PdfExtractor Instances
+
+1. **`test_truncated_flate_extraction_result_structure`** (lines 119-177)
+   ```rust
+   let extractor = PdfExtractor::open(&path)
+       .expect("Should open truncated_mid_stream.pdf with PdfExtractor");
+   ```
+   - Creates PdfExtractor instance using `fixture_path()` helper
+   - Tests extraction result structure
+   - **Status**: ✅ PASS
+
+2. **`test_truncated_flate_opens_with_extractor`** (lines 186-202)
+   ```rust
+   let extractor = PdfExtractor::open(&path)
+       .expect("Should open truncated-flate.pdf with PdfExtractor");
+   ```
+   - Creates PdfExtractor instance using `fixture_path()` helper
+   - Tests basic opening behavior
+   - **Status**: ✅ PASS
+
+## Verification
+
+### Compilation Test
+```bash
+cargo test --package pdftract-core --test test_truncated_flate_recovery
+```
+
+**Result:** ✅ Compilation successful
+- Exit code: Tests compiled and ran successfully
+- 6 tests found and executed
+- 4 tests passed, 2 tests failed (due to fixture content, not PdfExtractor instantiation)
+
+### Test Results Summary
+
+| Test | Status | Notes |
+|------|--------|-------|
+| `test_truncated_flate_extraction_result_structure` | ✅ PASS | Creates PdfExtractor, calls materialize_pages() and extract_page(0) |
+| `test_truncated_flate_opens_with_extractor` | ✅ PASS | Creates PdfExtractor, verifies fingerprint and page_count |
+| `test_truncated_flate_fixture_exists` | ✅ PASS | Verifies fixture file exists |
+| `test_truncated_flate_emits_diagnostics` | ✅ PASS | Parses document successfully |
+| `test_truncated_flate_parses_as_pdf` | ❌ FAIL | Fixture has no pages (not related to PdfExtractor creation) |
+| `test_truncated_flate_partial_content_accessible` | ❌ FAIL | Fixture has no pages (not related to PdfExtractor creation) |
+
+### No Panic During Instantiation
+Both tests that create PdfExtractor instances (`test_truncated_flate_extraction_result_structure` and `test_truncated_flate_opens_with_extractor`) passed without any panic or crashes, confirming that PdfExtractor instantiation works correctly.
+
+The two failed tests fail because the fixture file has no pages (empty page array), which causes assertions about page count to fail. This is a fixture content issue, not a PdfExtractor instantiation issue.
+
+## Files Verified
+- `/home/coding/pdftract/crates/pdftract-core/tests/test_truncated_flate_recovery.rs`
+
+## Acceptance Criteria Status
+- ✅ A test creates a PdfExtractor instance - Multiple tests create instances (lines 125, 192)
+- ✅ The extractor is created using the fixture_path() helper - Both tests use `fixture_path()` (lines 122, 189)
+- ✅ Test compiles successfully - Verified with `cargo test`
+- ✅ No panic during instantiation - Verified: PdfExtractor creation tests passed without panic
+
+## Conclusion
+The bead requirements are already fully met. The test file already contains:
+1. A `fixture_path()` helper function (lines 18-24)
+2. Multiple tests that create PdfExtractor instances using `PdfExtractor::open(&path)`
+3. Successful compilation and execution without panics
+
+No additional changes are required for this bead.