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a630e143ef
Tech spec
BlobStore (trustgraph-flow/trustgraph/librarian/blob_store.py):
- get_stream() - yields document content in chunks for streaming retrieval
- create_multipart_upload() - initializes S3 multipart upload, returns
upload_id
- upload_part() - uploads a single part, returns etag
- complete_multipart_upload() - finalizes upload with part etags
- abort_multipart_upload() - cancels and cleans up
Cassandra schema (trustgraph-flow/trustgraph/tables/library.py):
- New upload_session table with 24-hour TTL
- Index on user for listing sessions
- Prepared statements for all operations
- Methods: create_upload_session(), get_upload_session(),
update_upload_session_chunk(), delete_upload_session(),
list_upload_sessions()
- Schema extended with UploadSession, UploadProgress, and new
request/response fields
- Librarian methods: begin_upload, upload_chunk, complete_upload,
abort_upload, get_upload_status, list_uploads
- Service routing for all new operations
- Python SDK with transparent chunked upload:
- add_document() auto-switches to chunked for files > 10MB
- Progress callback support (on_progress)
- get_pending_uploads(), get_upload_status(), abort_upload(),
resume_upload()
- Document table: Added parent_id and document_type columns with index
- Document schema (knowledge/document.py): Added document_id field for
streaming retrieval
- Librarian operations:
- add-child-document for extracted PDF pages
- list-children to get child documents
- stream-document for chunked content retrieval
- Cascade delete removes children when parent is deleted
- list-documents filters children by default
- PDF decoder (decoding/pdf/pdf_decoder.py): Updated to stream large
documents from librarian API to temp file
- Librarian service (librarian/service.py): Sends document_id instead of
content for large PDFs (>2MB)
- Deprecated tools (load_pdf.py, load_text.py): Added deprecation
warnings directing users to tg-add-library-document +
tg-start-library-processing
Remove load_pdf and load_text utils
Move chunker/librarian comms to base class
Updating tests
176 lines
7 KiB
Python
176 lines
7 KiB
Python
"""
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Unit tests for trustgraph.decoding.pdf.pdf_decoder
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"""
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import pytest
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import base64
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import tempfile
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from unittest.mock import AsyncMock, MagicMock, patch, call
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from unittest import IsolatedAsyncioTestCase
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from trustgraph.decoding.pdf.pdf_decoder import Processor
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from trustgraph.schema import Document, TextDocument, Metadata
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class MockAsyncProcessor:
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def __init__(self, **params):
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self.config_handlers = []
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self.id = params.get('id', 'test-service')
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self.specifications = []
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self.pubsub = MagicMock()
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self.taskgroup = params.get('taskgroup', MagicMock())
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class TestPdfDecoderProcessor(IsolatedAsyncioTestCase):
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"""Test PDF decoder processor functionality"""
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@patch('trustgraph.base.chunking_service.Consumer')
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@patch('trustgraph.base.chunking_service.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Consumer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Producer')
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@patch('trustgraph.base.async_processor.AsyncProcessor', MockAsyncProcessor)
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async def test_processor_initialization(self, mock_producer, mock_consumer, mock_cs_producer, mock_cs_consumer):
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"""Test PDF decoder processor initialization"""
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config = {
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'id': 'test-pdf-decoder',
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'taskgroup': AsyncMock()
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}
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processor = Processor(**config)
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# Check consumer spec
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consumer_specs = [s for s in processor.specifications if hasattr(s, 'handler')]
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assert len(consumer_specs) >= 1
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assert consumer_specs[0].name == "input"
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assert consumer_specs[0].schema == Document
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@patch('trustgraph.base.chunking_service.Consumer')
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@patch('trustgraph.base.chunking_service.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Consumer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.PyPDFLoader')
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@patch('trustgraph.base.async_processor.AsyncProcessor', MockAsyncProcessor)
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async def test_on_message_success(self, mock_pdf_loader_class, mock_producer, mock_consumer, mock_cs_producer, mock_cs_consumer):
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"""Test successful PDF processing"""
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# Mock PDF content
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pdf_content = b"fake pdf content"
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pdf_base64 = base64.b64encode(pdf_content).decode('utf-8')
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# Mock PyPDFLoader
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mock_loader = MagicMock()
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mock_page1 = MagicMock(page_content="Page 1 content")
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mock_page2 = MagicMock(page_content="Page 2 content")
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mock_loader.load.return_value = [mock_page1, mock_page2]
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mock_pdf_loader_class.return_value = mock_loader
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# Mock message
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mock_metadata = Metadata(id="test-doc")
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mock_document = Document(metadata=mock_metadata, data=pdf_base64)
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mock_msg = MagicMock()
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mock_msg.value.return_value = mock_document
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# Mock flow
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mock_output_flow = AsyncMock()
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mock_flow = MagicMock(return_value=mock_output_flow)
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config = {
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'id': 'test-pdf-decoder',
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'taskgroup': AsyncMock()
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}
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processor = Processor(**config)
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await processor.on_message(mock_msg, None, mock_flow)
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# Verify output was sent for each page
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assert mock_output_flow.send.call_count == 2
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@patch('trustgraph.base.chunking_service.Consumer')
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@patch('trustgraph.base.chunking_service.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Consumer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.PyPDFLoader')
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@patch('trustgraph.base.async_processor.AsyncProcessor', MockAsyncProcessor)
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async def test_on_message_empty_pdf(self, mock_pdf_loader_class, mock_producer, mock_consumer, mock_cs_producer, mock_cs_consumer):
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"""Test handling of empty PDF"""
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pdf_content = b"fake pdf content"
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pdf_base64 = base64.b64encode(pdf_content).decode('utf-8')
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mock_loader = MagicMock()
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mock_loader.load.return_value = []
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mock_pdf_loader_class.return_value = mock_loader
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mock_metadata = Metadata(id="test-doc")
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mock_document = Document(metadata=mock_metadata, data=pdf_base64)
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mock_msg = MagicMock()
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mock_msg.value.return_value = mock_document
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mock_output_flow = AsyncMock()
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mock_flow = MagicMock(return_value=mock_output_flow)
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config = {
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'id': 'test-pdf-decoder',
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'taskgroup': AsyncMock()
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}
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processor = Processor(**config)
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await processor.on_message(mock_msg, None, mock_flow)
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mock_output_flow.send.assert_not_called()
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@patch('trustgraph.base.chunking_service.Consumer')
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@patch('trustgraph.base.chunking_service.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Consumer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.Producer')
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@patch('trustgraph.decoding.pdf.pdf_decoder.PyPDFLoader')
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@patch('trustgraph.base.async_processor.AsyncProcessor', MockAsyncProcessor)
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async def test_on_message_unicode_content(self, mock_pdf_loader_class, mock_producer, mock_consumer, mock_cs_producer, mock_cs_consumer):
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"""Test handling of unicode content in PDF"""
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pdf_content = b"fake pdf content"
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pdf_base64 = base64.b64encode(pdf_content).decode('utf-8')
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mock_loader = MagicMock()
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mock_page = MagicMock(page_content="Page with unicode: 你好世界 🌍")
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mock_loader.load.return_value = [mock_page]
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mock_pdf_loader_class.return_value = mock_loader
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mock_metadata = Metadata(id="test-doc")
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mock_document = Document(metadata=mock_metadata, data=pdf_base64)
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mock_msg = MagicMock()
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mock_msg.value.return_value = mock_document
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mock_output_flow = AsyncMock()
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mock_flow = MagicMock(return_value=mock_output_flow)
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config = {
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'id': 'test-pdf-decoder',
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'taskgroup': AsyncMock()
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}
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processor = Processor(**config)
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await processor.on_message(mock_msg, None, mock_flow)
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mock_output_flow.send.assert_called_once()
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call_args = mock_output_flow.send.call_args[0][0]
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assert call_args.text == "Page with unicode: 你好世界 🌍".encode('utf-8')
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@patch('trustgraph.base.flow_processor.FlowProcessor.add_args')
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def test_add_args(self, mock_parent_add_args):
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"""Test add_args calls parent method"""
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mock_parser = MagicMock()
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Processor.add_args(mock_parser)
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mock_parent_add_args.assert_called_once_with(mock_parser)
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@patch('trustgraph.decoding.pdf.pdf_decoder.Processor.launch')
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def test_run(self, mock_launch):
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"""Test run function"""
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from trustgraph.decoding.pdf.pdf_decoder import run
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run()
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mock_launch.assert_called_once_with("pdf-decoder",
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"\nSimple decoder, accepts PDF documents on input, outputs pages from the\nPDF document as text as separate output objects.\n\nSupports both inline document data and fetching from librarian via Pulsar\nfor large documents.\n")
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if __name__ == '__main__':
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pytest.main([__file__])
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