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DocsGPT/tests/parser/file/test_docling_parser.py
T

894 lines
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Python

"""Comprehensive tests for application/parser/file/docling_parser.py
Covers: DoclingParser (init, _init_parser, _get_ocr_options, _export_content,
parse_file), subclass initialization, error handling.
"""
import os
from pathlib import Path
from unittest.mock import MagicMock, patch
import pytest
# =====================================================================
# DoclingParser - Init
# =====================================================================
@pytest.mark.unit
class TestDoclingParserInit:
def test_default_init(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
assert parser.ocr_enabled is True
assert parser.table_structure is True
assert parser.export_format == "markdown"
assert parser.use_rapidocr is True
assert parser.ocr_languages == ["english"]
assert parser.force_full_page_ocr is False
assert parser._converter is None
def test_custom_init(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(
ocr_enabled=False,
table_structure=False,
export_format="text",
use_rapidocr=False,
ocr_languages=["german"],
force_full_page_ocr=True,
)
assert parser.ocr_enabled is False
assert parser.table_structure is False
assert parser.export_format == "text"
assert parser.use_rapidocr is False
assert parser.ocr_languages == ["german"]
assert parser.force_full_page_ocr is True
# =====================================================================
# Init Parser
# =====================================================================
@pytest.mark.unit
class TestDoclingParserInitParser:
def test_init_parser_raises_without_docling(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
with patch("importlib.util.find_spec", return_value=None):
with pytest.raises(ImportError, match="docling is required"):
parser._init_parser()
def test_init_parser_success(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
mock_converter = MagicMock()
with patch("importlib.util.find_spec", return_value=MagicMock()), \
patch.object(parser, "_create_converter", return_value=mock_converter):
result = parser._init_parser()
assert isinstance(result, dict)
assert result["ocr_enabled"] is True
assert result["table_structure"] is True
assert parser._converter is mock_converter
# =====================================================================
# Get OCR Options
# =====================================================================
@pytest.mark.unit
class TestGetOCROptions:
def test_returns_none_when_rapidocr_disabled(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(use_rapidocr=False)
assert parser._get_ocr_options() is None
def test_returns_options_when_available(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(use_rapidocr=True, ocr_languages=["english"])
mock_options = MagicMock()
with patch(
"application.parser.file.docling_parser.DoclingParser._get_ocr_options",
return_value=mock_options,
):
result = parser._get_ocr_options()
assert result is mock_options
def test_returns_none_on_import_error(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(use_rapidocr=True)
# Simulate the ImportError path
original = parser._get_ocr_options
def patched_get_ocr():
try:
raise ImportError("No RapidOcrOptions")
except ImportError:
return None
parser._get_ocr_options = patched_get_ocr
assert parser._get_ocr_options() is None
parser._get_ocr_options = original
# =====================================================================
# Export Content
# =====================================================================
@pytest.mark.unit
class TestExportContent:
def test_export_markdown(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="markdown")
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = "# Title\n\nContent here"
mock_doc.texts = []
result = parser._export_content(mock_doc)
assert "# Title" in result
mock_doc.export_to_markdown.assert_called_once()
def test_export_html(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="html")
mock_doc = MagicMock()
mock_doc.export_to_html.return_value = "<h1>Title</h1>"
mock_doc.texts = []
result = parser._export_content(mock_doc)
assert "<h1>" in result
def test_export_text(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="text")
mock_doc = MagicMock()
mock_doc.export_to_text.return_value = "Plain text content"
mock_doc.texts = []
result = parser._export_content(mock_doc)
assert "Plain text" in result
def test_fallback_to_texts_on_minimal_content(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="markdown")
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = "<!-- image -->"
text1 = MagicMock()
text1.text = "OCR extracted text 1"
text2 = MagicMock()
text2.text = "OCR extracted text 2"
mock_doc.texts = [text1, text2]
result = parser._export_content(mock_doc)
assert "OCR extracted text 1" in result
assert "OCR extracted text 2" in result
def test_no_fallback_for_substantial_content(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="markdown")
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = "A" * 100
mock_doc.texts = []
result = parser._export_content(mock_doc)
assert result == "A" * 100
def test_fallback_skipped_when_no_texts(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="markdown")
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = "short"
mock_doc.texts = []
result = parser._export_content(mock_doc)
assert result == "short"
def test_fallback_skips_empty_texts(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(export_format="markdown")
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = ""
empty_text = MagicMock()
empty_text.text = ""
mock_doc.texts = [empty_text]
result = parser._export_content(mock_doc)
assert result == ""
# =====================================================================
# Parse File
# =====================================================================
@pytest.mark.unit
class TestDoclingParserParseFile:
def test_parse_file_success(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
mock_converter = MagicMock()
mock_result = MagicMock()
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = "Parsed document content"
mock_doc.texts = []
mock_result.document = mock_doc
mock_converter.convert.return_value = mock_result
parser._converter = mock_converter
result = parser.parse_file(Path("test.pdf"))
assert "Parsed document content" in result
def test_parse_file_inits_converter_on_first_call(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
parser._converter = None
mock_converter = MagicMock()
mock_result = MagicMock()
mock_doc = MagicMock()
mock_doc.export_to_markdown.return_value = "content"
mock_doc.texts = []
mock_result.document = mock_doc
mock_converter.convert.return_value = mock_result
with patch.object(parser, "_init_parser") as mock_init:
parser._converter = mock_converter
mock_init.return_value = {}
result = parser.parse_file(Path("test.pdf"))
assert "content" in result
def test_parse_file_error_ignore_raises_instead_of_returning_error_text(self):
"""A failed conversion must never become the document's text.
Regression: ``errors="ignore"`` used to return
``"[Error parsing file with docling: ...]"``, which the attachment
worker then stored as ``attachments.content`` and handed to the LLM
as if it were the PDF. ``errors`` controls *decoding* leniency, not
"substitute the traceback for the document".
"""
from application.parser.file.base_parser import DocumentParseError
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
mock_converter = MagicMock()
mock_converter.convert.side_effect = Exception("Parse failed")
parser._converter = mock_converter
with pytest.raises(DocumentParseError) as excinfo:
parser.parse_file(Path("bad.pdf"), errors="ignore")
# The message identifies the file and preserves the cause for triage…
assert "bad.pdf" in str(excinfo.value)
assert "Parse failed" in str(excinfo.value)
# …and the original exception is chained, not swallowed.
assert isinstance(excinfo.value.__cause__, Exception)
assert "Parse failed" in str(excinfo.value.__cause__)
def test_parse_file_error_ignore_never_returns_a_string(self):
"""Belt-and-braces: no code path may hand back error text as content."""
from application.parser.file.base_parser import DocumentParseError
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
mock_converter = MagicMock()
mock_converter.convert.side_effect = RuntimeError(
"Conversion failed for: x.pdf with status: failure. Errors: "
"InvalidCxxCompiler: No working C++ compiler found"
)
parser._converter = mock_converter
try:
result = parser.parse_file(Path("x.pdf"), errors="ignore")
except DocumentParseError:
return # expected
pytest.fail(
f"parse_file returned {result!r} instead of raising; error text "
"must not be usable as document content"
)
def test_parse_file_error_raise(self):
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser()
mock_converter = MagicMock()
mock_converter.convert.side_effect = Exception("Parse failed")
parser._converter = mock_converter
with pytest.raises(Exception, match="Parse failed"):
parser.parse_file(Path("bad.pdf"), errors="strict")
# =====================================================================
# Subclass Init
# =====================================================================
@pytest.mark.unit
class TestDoclingSubclasses:
def test_pdf_parser_init(self):
from application.parser.file.docling_parser import DoclingPDFParser
parser = DoclingPDFParser()
assert parser.ocr_enabled is True
assert parser.export_format == "markdown"
def test_pdf_parser_custom_ocr(self):
from application.parser.file.docling_parser import DoclingPDFParser
parser = DoclingPDFParser(ocr_enabled=False, force_full_page_ocr=True)
assert parser.ocr_enabled is False
assert parser.force_full_page_ocr is True
def test_docx_parser_init(self):
from application.parser.file.docling_parser import DoclingDocxParser
parser = DoclingDocxParser()
assert parser.export_format == "markdown"
def test_pptx_parser_init(self):
from application.parser.file.docling_parser import DoclingPPTXParser
parser = DoclingPPTXParser()
assert parser.export_format == "markdown"
def test_xlsx_parser_init(self):
from application.parser.file.docling_parser import DoclingXLSXParser
parser = DoclingXLSXParser()
assert parser.table_structure is True
def test_html_parser_init(self):
from application.parser.file.docling_parser import DoclingHTMLParser
parser = DoclingHTMLParser()
assert parser.export_format == "markdown"
def test_image_parser_init(self):
from application.parser.file.docling_parser import DoclingImageParser
parser = DoclingImageParser()
assert parser.ocr_enabled is True
assert parser.force_full_page_ocr is True
def test_image_parser_custom(self):
from application.parser.file.docling_parser import DoclingImageParser
parser = DoclingImageParser(ocr_enabled=False)
assert parser.ocr_enabled is False
def test_csv_parser_init(self):
from application.parser.file.docling_parser import DoclingCSVParser
parser = DoclingCSVParser()
assert parser.table_structure is True
def test_markdown_parser_init(self):
from application.parser.file.docling_parser import DoclingMarkdownParser
parser = DoclingMarkdownParser()
assert parser.export_format == "markdown"
def test_asciidoc_parser_init(self):
from application.parser.file.docling_parser import DoclingAsciiDocParser
parser = DoclingAsciiDocParser()
assert parser.export_format == "markdown"
def test_vtt_parser_init(self):
from application.parser.file.docling_parser import DoclingVTTParser
parser = DoclingVTTParser()
assert parser.export_format == "markdown"
def test_xml_parser_init(self):
from application.parser.file.docling_parser import DoclingXMLParser
parser = DoclingXMLParser()
assert parser.export_format == "markdown"
# =====================================================================
# Coverage gap tests (lines 148-153, 289)
# =====================================================================
@pytest.mark.unit
class TestDoclingParserGaps:
def test_get_ocr_options_import_error_returns_none(self):
"""Cover lines 148-150: ImportError returns None."""
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(ocr_enabled=True, use_rapidocr=True)
with patch.dict("sys.modules", {"docling.datamodel.pipeline_options": None}):
# Force re-import to trigger ImportError
with patch(
"builtins.__import__", side_effect=ImportError("no module")
):
result = parser._get_ocr_options()
assert result is None
def test_get_ocr_options_generic_error_returns_none(self):
"""Cover lines 151-153: generic Exception returns None."""
from application.parser.file.docling_parser import DoclingParser
parser = DoclingParser(ocr_enabled=True, use_rapidocr=True)
with patch(
"builtins.__import__",
side_effect=RuntimeError("unexpected"),
):
result = parser._get_ocr_options()
assert result is None
def test_csv_parser_init(self):
"""Cover line 289: DoclingCSVParser.__init__ calls super."""
from application.parser.file.docling_parser import DoclingCSVParser
parser = DoclingCSVParser()
assert parser.export_format == "markdown"
assert parser.ocr_enabled is True
# =====================================================================
# Pipeline memory caps
# =====================================================================
@pytest.mark.unit
class TestApplyPipelineCaps:
"""_apply_pipeline_caps bounds docling's threaded-pipeline buffering."""
def test_caps_threaded_pipeline_knobs(self, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import _apply_pipeline_caps
monkeypatch.setattr(
settings, "DOCLING_PIPELINE_QUEUE_MAX_SIZE", 2, raising=False
)
class Opts:
# docling >= 2.94 threaded pipeline — all knobs present.
queue_max_size = 100
layout_batch_size = 4
table_batch_size = 4
ocr_batch_size = 4
opts = Opts()
_apply_pipeline_caps(opts)
assert opts.queue_max_size == 2
assert opts.layout_batch_size == 1
assert opts.table_batch_size == 1
assert opts.ocr_batch_size == 1
def test_queue_size_is_settings_driven(self, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import _apply_pipeline_caps
monkeypatch.setattr(
settings, "DOCLING_PIPELINE_QUEUE_MAX_SIZE", 6, raising=False
)
class Opts:
queue_max_size = 100
opts = Opts()
_apply_pipeline_caps(opts)
assert opts.queue_max_size == 6
def test_misconfigured_zero_floors_to_one(self, monkeypatch):
"""A 0 queue depth could deadlock the threaded pipeline — floor it."""
from application.core.settings import settings
from application.parser.file.docling_parser import _apply_pipeline_caps
monkeypatch.setattr(
settings, "DOCLING_PIPELINE_QUEUE_MAX_SIZE", 0, raising=False
)
class Opts:
queue_max_size = 100
opts = Opts()
_apply_pipeline_caps(opts)
assert opts.queue_max_size == 1
def test_noop_on_docling_without_threaded_pipeline(self):
"""Builds predating the threaded pipeline lack the knobs — the cap
must be a silent no-op, not an AttributeError."""
from application.parser.file.docling_parser import _apply_pipeline_caps
class LegacyOpts:
__slots__ = ("do_ocr", "do_table_structure")
def __init__(self):
self.do_ocr = False
self.do_table_structure = True
opts = LegacyOpts()
_apply_pipeline_caps(opts) # must not raise
assert not hasattr(opts, "queue_max_size")
assert not hasattr(opts, "layout_batch_size")
# =====================================================================
# Tabular size gate (CSV / XLSX)
# =====================================================================
@pytest.mark.unit
class TestDoclingTabularSizeGate:
"""Oversized tabular files must bypass docling.
Docling materializes a ``TableCell`` object per cell (measured ~11 KB of
RSS per 4-cell CSV row), so a multi-MB CSV balloons the worker by tens of
GB. Above ``DOCLING_TABULAR_MAX_BYTES`` the docling tabular parsers must
delegate to the lightweight parsers in ``tabular_parser``.
"""
def _write_csv(self, tmp_path: Path, rows: int = 50) -> Path:
path = tmp_path / "data.csv"
path.write_text("\n".join(f"{i},{i * 2}" for i in range(rows)) + "\n")
return path
def test_oversized_csv_delegates_to_plain_csv_parser(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import DoclingCSVParser, DoclingParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 64)
docling_parse = MagicMock(name="docling_parse")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
path = self._write_csv(tmp_path)
assert path.stat().st_size > 64
out = DoclingCSVParser().parse_file(path)
docling_parse.assert_not_called()
# Plain ``CSVParser`` output: rows joined with ", ", newline-separated.
assert out.startswith("0, 0\n1, 2\n")
def test_small_csv_still_uses_docling(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import DoclingCSVParser, DoclingParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 10_000_000)
docling_parse = MagicMock(name="docling_parse", return_value="DOCLING")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
out = DoclingCSVParser().parse_file(self._write_csv(tmp_path))
assert out == "DOCLING"
docling_parse.assert_called_once()
def test_gate_disabled_when_max_bytes_is_zero(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import DoclingCSVParser, DoclingParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 0)
docling_parse = MagicMock(name="docling_parse", return_value="DOCLING")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
out = DoclingCSVParser().parse_file(self._write_csv(tmp_path, rows=5000))
assert out == "DOCLING"
docling_parse.assert_called_once()
def test_oversized_xlsx_delegates_to_excel_parser(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import DoclingParser, DoclingXLSXParser
from application.parser.file.tabular_parser import ExcelParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 64)
docling_parse = MagicMock(name="docling_parse")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
excel_parse = MagicMock(name="excel_parse", return_value="PLAIN-XLSX")
monkeypatch.setattr(ExcelParser, "parse_file", excel_parse)
path = tmp_path / "big.xlsx"
path.write_bytes(b"x" * 200)
out = DoclingXLSXParser().parse_file(path)
assert out == "PLAIN-XLSX"
docling_parse.assert_not_called()
excel_parse.assert_called_once()
def test_small_xlsx_still_uses_docling(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file.docling_parser import DoclingParser, DoclingXLSXParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 10_000_000)
docling_parse = MagicMock(name="docling_parse", return_value="DOCLING")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
path = tmp_path / "small.xlsx"
path.write_bytes(b"x" * 200)
assert DoclingXLSXParser().parse_file(path) == "DOCLING"
docling_parse.assert_called_once()
# =====================================================================
# Tabular content-size gate — XLSX compression must not defeat it
# =====================================================================
def _make_xlsx(path: Path, rows: int) -> None:
from openpyxl import Workbook
wb = Workbook(write_only=True)
ws = wb.create_sheet()
for i in range(rows):
ws.append([i, i * 2, i % 7, i % 13, i * 3])
wb.save(str(path))
@pytest.mark.unit
class TestTabularContentSize:
"""XLSX is zip-compressed, so the gate must measure inner-uncompressed
size, not on-disk bytes — otherwise a small-on-disk / many-cell xlsx
(2.44 GB in docling) slips under a byte gate."""
def test_xlsx_content_size_is_inner_not_ondisk(self, tmp_path):
from application.parser.file.docling_parser import _tabular_content_size
path = tmp_path / "data.xlsx"
_make_xlsx(path, rows=5000)
on_disk = path.stat().st_size
inner = _tabular_content_size(path)
# Repetitive numeric data compresses hard: inner XML >> zip on disk.
assert inner > on_disk
def test_csv_content_size_is_ondisk(self, tmp_path):
from application.parser.file.docling_parser import _tabular_content_size
path = tmp_path / "data.csv"
path.write_text("a,b\n1,2\n3,4\n")
assert _tabular_content_size(path) == path.stat().st_size
def test_compressed_xlsx_over_inner_gate_delegates(self, tmp_path, monkeypatch):
"""The regression: on-disk < threshold < inner-uncompressed must gate."""
from application.core.settings import settings
from application.parser.file.docling_parser import (
DoclingParser,
DoclingXLSXParser,
_tabular_content_size,
)
from application.parser.file.tabular_parser import ExcelParser
path = tmp_path / "wide.xlsx"
_make_xlsx(path, rows=5000)
on_disk = path.stat().st_size
inner = _tabular_content_size(path)
assert inner > on_disk, "premise: compression hides cell count"
# A byte gate between the two would have sent this to docling; the
# inner-size gate must catch it.
monkeypatch.setattr(
settings, "DOCLING_TABULAR_MAX_BYTES", (on_disk + inner) // 2
)
docling_parse = MagicMock(name="docling_parse")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
excel_parse = MagicMock(name="excel_parse", return_value="PLAIN")
monkeypatch.setattr(ExcelParser, "parse_file", excel_parse)
out = DoclingXLSXParser().parse_file(path)
assert out == "PLAIN"
docling_parse.assert_not_called()
excel_parse.assert_called_once()
# =====================================================================
# Markup gate (HTML / VTT) — truncate oversized element-dense markup
# =====================================================================
@pytest.mark.unit
class TestDoclingMarkupGate:
def _write(self, tmp_path: Path, name: str, nbytes: int) -> Path:
path = tmp_path / name
# newline-terminated lines so the line-boundary trim has something to cut
path.write_text(("x" * 63 + "\n") * (nbytes // 64 + 1))
return path
@pytest.mark.parametrize("name", ["big.html", "big.vtt"])
def test_oversized_markup_parses_truncated_copy(self, tmp_path, monkeypatch, name):
from application.core.settings import settings
from application.parser.file import docling_parser as dp
monkeypatch.setattr(settings, "DOCLING_MARKUP_MAX_BYTES", 512)
path = self._write(tmp_path, name, 4096)
assert path.stat().st_size > 512
seen = {}
def fake_parse(self_parser, file, errors="ignore"):
p = str(file)
seen["path"] = p
seen["size"] = os.path.getsize(p)
return "PARSED"
monkeypatch.setattr(dp.DoclingParser, "parse_file", fake_parse)
cls = dp.DoclingHTMLParser if name.endswith(".html") else dp.DoclingVTTParser
out = cls().parse_file(path)
assert out == "PARSED"
assert seen["path"] != str(path), "must parse a temp copy, not the original"
assert seen["size"] <= 512, "temp copy must be truncated to the cap"
assert not os.path.exists(seen["path"]), "temp copy must be cleaned up"
assert path.stat().st_size > 512, "original must be untouched"
def test_small_markup_parses_original(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file import docling_parser as dp
monkeypatch.setattr(settings, "DOCLING_MARKUP_MAX_BYTES", 10_000_000)
path = self._write(tmp_path, "small.html", 1024)
seen = {}
def fake_parse(self_parser, file, errors="ignore"):
seen["path"] = str(file)
return "PARSED"
monkeypatch.setattr(dp.DoclingParser, "parse_file", fake_parse)
out = dp.DoclingHTMLParser().parse_file(path)
assert out == "PARSED"
assert seen["path"] == str(path)
def test_markup_gate_disabled_when_zero(self, tmp_path, monkeypatch):
from application.core.settings import settings
from application.parser.file import docling_parser as dp
monkeypatch.setattr(settings, "DOCLING_MARKUP_MAX_BYTES", 0)
path = self._write(tmp_path, "big.vtt", 8192)
seen = {}
def fake_parse(self_parser, file, errors="ignore"):
seen["path"] = str(file)
return "PARSED"
monkeypatch.setattr(dp.DoclingParser, "parse_file", fake_parse)
dp.DoclingVTTParser().parse_file(path)
assert seen["path"] == str(path), "disabled gate must parse the original"
# =====================================================================
# Gate seam: the oversized path through the REAL lightweight parser
# =====================================================================
@pytest.mark.unit
class TestTabularGateSeam:
"""Exercise the gate and the lightweight parser together.
Every test in ``TestDoclingTabularSizeGate`` monkeypatches
``ExcelParser.parse_file`` away, so the seam between the size gate and
the real fallback had zero coverage — which is how a crash on blank
cells reached production and silently destroyed an upload.
"""
def _write_xlsx_with_hole(self, path: Path) -> Path:
openpyxl = pytest.importorskip("openpyxl")
wb = openpyxl.Workbook()
ws = wb.active
ws.append([f"col{i}" for i in range(14)])
ws.append(list(range(14)))
holed = list(range(14))
holed[11] = None
ws.append(holed)
wb.save(path)
return path
def test_oversized_xlsx_with_blank_cells_parses_end_to_end(
self, tmp_path, monkeypatch
):
"""The real incident, end to end: gate trips, blanks do not crash."""
from application.core.settings import settings
from application.parser.file.docling_parser import (
DoclingParser,
DoclingXLSXParser,
)
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 64)
docling_parse = MagicMock(name="docling_parse")
monkeypatch.setattr(DoclingParser, "parse_file", docling_parse)
path = self._write_xlsx_with_hole(tmp_path / "focus.xlsx")
out = DoclingXLSXParser().parse_file(path)
docling_parse.assert_not_called()
assert isinstance(out, str) and out
assert "nan" not in out
def test_lightweight_failure_becomes_document_parse_error(
self, tmp_path, monkeypatch
):
"""A fallback crash must be non-retryable and batch-skippable.
``DocumentParseError`` is listed in ``dont_autoretry_for`` on both
``ingest`` and ``store_attachment``, and is the only exception
``SimpleDirectoryReader.load_data`` skips rather than propagating.
"""
from application.core.settings import settings
from application.parser.file.base_parser import DocumentParseError
from application.parser.file.docling_parser import (
DoclingParser,
DoclingXLSXParser,
)
from application.parser.file.tabular_parser import ExcelParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 64)
monkeypatch.setattr(DoclingParser, "parse_file", MagicMock())
monkeypatch.setattr(
ExcelParser,
"parse_file",
MagicMock(side_effect=TypeError("sequence item 11")),
)
path = self._write_xlsx_with_hole(tmp_path / "boom.xlsx")
with pytest.raises(DocumentParseError):
DoclingXLSXParser().parse_file(path)
def test_oversized_csv_failure_becomes_document_parse_error(
self, tmp_path, monkeypatch
):
from application.core.settings import settings
from application.parser.file.base_parser import DocumentParseError
from application.parser.file.docling_parser import (
DoclingCSVParser,
DoclingParser,
)
from application.parser.file.tabular_parser import CSVParser
monkeypatch.setattr(settings, "DOCLING_TABULAR_MAX_BYTES", 8)
monkeypatch.setattr(DoclingParser, "parse_file", MagicMock())
monkeypatch.setattr(
CSVParser, "parse_file", MagicMock(side_effect=ValueError("bad"))
)
path = tmp_path / "data.csv"
path.write_text("a,b\n1,2\n" * 20)
with pytest.raises(DocumentParseError):
DoclingCSVParser().parse_file(path)