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from pathlib import Path
sys.path.insert(0, str(Path(__file__).parent.parent / "src"))
import pytest
import io
from unittest.mock import Mock, MagicMock, patch
class TestExtractPdfPages:
"""Tests for extract_pdf_pages function."""
@patch("document_processor.pdfplumber")
@patch("document_processor.tempfile.NamedTemporaryFile")
@patch("document_processor.os.unlink")
def test_extracts_pages_with_text(self, mock_unlink, mock_tempfile, mock_pdfplumber):
"""Should extract text from PDF pages."""
from document_processor import extract_pdf_pages
mock_tmp = MagicMock()
mock_tmp.name = "/tmp/test.pdf"
mock_tmp.__enter__ = Mock(return_value=mock_tmp)
mock_tmp.__exit__ = Mock(return_value=False)
mock_tempfile.return_value = mock_tmp
mock_page = Mock()
mock_page.extract_text.return_value = "Page content"
mock_pdf = MagicMock()
mock_pdf.pages = [mock_page]
mock_pdf.__enter__ = Mock(return_value=mock_pdf)
mock_pdf.__exit__ = Mock(return_value=False)
mock_pdfplumber.open.return_value = mock_pdf
file_obj = io.BytesIO(b"fake pdf content")
result = extract_pdf_pages(file_obj, "test.pdf")
assert len(result) == 1
assert result[0]["text"] == "Page content"
assert result[0]["page_number"] == 1
assert result[0]["source"] == "test.pdf"
@patch("document_processor.pdfplumber")
@patch("document_processor.tempfile.NamedTemporaryFile")
@patch("document_processor.os.unlink")
def test_skips_empty_pages(self, mock_unlink, mock_tempfile, mock_pdfplumber):
"""Should skip pages with no text."""
from document_processor import extract_pdf_pages
mock_tmp = MagicMock()
mock_tmp.name = "/tmp/test.pdf"
mock_tmp.__enter__ = Mock(return_value=mock_tmp)
mock_tmp.__exit__ = Mock(return_value=False)
mock_tempfile.return_value = mock_tmp
mock_page1 = Mock()
mock_page1.extract_text.return_value = "Content"
mock_page2 = Mock()
mock_page2.extract_text.return_value = " "
mock_pdf = MagicMock()
mock_pdf.pages = [mock_page1, mock_page2]
mock_pdf.__enter__ = Mock(return_value=mock_pdf)
mock_pdf.__exit__ = Mock(return_value=False)
mock_pdfplumber.open.return_value = mock_pdf
file_obj = io.BytesIO(b"fake pdf")
result = extract_pdf_pages(file_obj, "test.pdf")
assert len(result) == 1
@patch("document_processor.pdfplumber")
@patch("document_processor.tempfile.NamedTemporaryFile")
@patch("document_processor.os.unlink")
def test_cleans_up_temp_file(self, mock_unlink, mock_tempfile, mock_pdfplumber):
"""Should delete temp file after processing."""
from document_processor import extract_pdf_pages
mock_tmp = MagicMock()
mock_tmp.name = "/tmp/test.pdf"
mock_tmp.__enter__ = Mock(return_value=mock_tmp)
mock_tmp.__exit__ = Mock(return_value=False)
mock_tempfile.return_value = mock_tmp
mock_pdf = MagicMock()
mock_pdf.pages = []
mock_pdf.__enter__ = Mock(return_value=mock_pdf)
mock_pdf.__exit__ = Mock(return_value=False)
mock_pdfplumber.open.return_value = mock_pdf
file_obj = io.BytesIO(b"fake pdf")
extract_pdf_pages(file_obj, "test.pdf")
mock_unlink.assert_called_once_with("/tmp/test.pdf")
class TestChunkText:
"""Tests for chunk_text function."""
def test_creates_chunks_with_metadata(self):
"""Should create chunks with correct metadata."""
from document_processor import chunk_text
text = "Short text."
result = chunk_text(text, "doc.pdf", 5)
assert len(result) >= 1
assert result[0]["text"] == "Short text."
assert result[0]["metadata"]["source"] == "doc.pdf"
assert result[0]["metadata"]["page_number"] == 5
assert result[0]["metadata"]["chunk_index"] == 0
def test_splits_long_text(self):
"""Should split long text into multiple chunks."""
from document_processor import chunk_text
text = "Word " * 500
result = chunk_text(text, "doc.pdf", 1, chunk_size=100, chunk_overlap=20)
assert len(result) > 1
def test_increments_chunk_index(self):
"""Should increment chunk_index for each chunk."""
from document_processor import chunk_text
text = "Paragraph one.\n\nParagraph two.\n\nParagraph three." * 50
result = chunk_text(text, "doc.pdf", 1, chunk_size=100, chunk_overlap=10)
indices = [c["metadata"]["chunk_index"] for c in result]
assert indices == list(range(len(result)))
def test_uses_custom_chunk_size(self):
"""Should respect custom chunk_size."""
from document_processor import chunk_text
text = "A" * 200
result = chunk_text(text, "doc.pdf", 1, chunk_size=50, chunk_overlap=10)
for chunk in result:
assert len(chunk["text"]) <= 60
class TestProcessDocuments:
"""Tests for process_documents function."""
def test_processes_multiple_pages(self):
"""Should process all pages."""
from document_processor import process_documents
pages = [
{"text": "Page one content.", "source": "doc.pdf", "page_number": 1},
{"text": "Page two content.", "source": "doc.pdf", "page_number": 2},
]
result = process_documents(pages)
assert len(result) >= 2
def test_preserves_page_numbers(self):
"""Should preserve page numbers in metadata."""
from document_processor import process_documents
pages = [
{"text": "Content", "source": "doc.pdf", "page_number": 5},
]
result = process_documents(pages)
assert result[0]["metadata"]["page_number"] == 5
def test_empty_pages_list(self):
"""Should handle empty pages list."""
from document_processor import process_documents
result = process_documents([])
assert result == []
class TestChunksToStoreFormat:
"""Tests for chunks_to_store_format function."""
def test_separates_texts_and_metadatas(self):
"""Should separate texts and metadatas."""
from document_processor import chunks_to_store_format
chunks = [
{"text": "Text 1", "metadata": {"source": "a.pdf"}},
{"text": "Text 2", "metadata": {"source": "b.pdf"}},
]
texts, metadatas = chunks_to_store_format(chunks)
assert texts == ["Text 1", "Text 2"]
assert metadatas == [{"source": "a.pdf"}, {"source": "b.pdf"}]
def test_empty_chunks(self):
"""Should handle empty chunks list."""
from document_processor import chunks_to_store_format
texts, metadatas = chunks_to_store_format([])
assert texts == []
assert metadatas == []
class TestExtractPdfFromPath:
"""Tests for extract_pdf_from_path function."""
@patch("document_processor.pdfplumber")
def test_extracts_pages_from_path(self, mock_pdfplumber):
"""Should extract text from PDF file path."""
from document_processor import extract_pdf_from_path
mock_page = Mock()
mock_page.extract_text.return_value = "Page content"
mock_pdf = MagicMock()
mock_pdf.pages = [mock_page]
mock_pdf.__enter__ = Mock(return_value=mock_pdf)
mock_pdf.__exit__ = Mock(return_value=False)
mock_pdfplumber.open.return_value = mock_pdf
result = extract_pdf_from_path("/path/to/test.pdf", "test.pdf")
assert len(result) == 1
assert result[0]["text"] == "Page content"
assert result[0]["source"] == "test.pdf"
@patch("document_processor.pdfplumber")
def test_uses_basename_if_no_filename(self, mock_pdfplumber):
"""Should use basename if filename not provided."""
from document_processor import extract_pdf_from_path
mock_page = Mock()
mock_page.extract_text.return_value = "Content"
mock_pdf = MagicMock()
mock_pdf.pages = [mock_page]
mock_pdf.__enter__ = Mock(return_value=mock_pdf)
mock_pdf.__exit__ = Mock(return_value=False)
mock_pdfplumber.open.return_value = mock_pdf
result = extract_pdf_from_path("/path/to/document.pdf")
assert result[0]["source"] == "document.pdf"
@patch("document_processor.pdfplumber")
def test_returns_empty_on_error(self, mock_pdfplumber):
"""Should return empty list on error."""
from document_processor import extract_pdf_from_path
mock_pdfplumber.open.side_effect = Exception("File not found")
result = extract_pdf_from_path("/invalid/path.pdf")
assert result == []
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