chore: initial commit — existing single-user document scanner codebase

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/tests/test_extractor.py

@@ -0,0 +1,52 @@
+import pytest
+from pathlib import Path
+from services.extractor import extract_text
+
+
+def test_extract_txt(tmp_path):
+    p = tmp_path / "test.txt"
+    p.write_text("Hello world this is a test document.", encoding="utf-8")
+    text = extract_text(str(p), "text/plain")
+    assert "Hello world" in text
+
+
+def test_extract_pdf(tmp_path):
+    import fitz
+    doc = fitz.open()
+    page = doc.new_page()
+    page.insert_text((50, 50), "PDF content about legal contracts.")
+    pdf_path = tmp_path / "test.pdf"
+    doc.save(str(pdf_path))
+    doc.close()
+
+    text = extract_text(str(pdf_path), "application/pdf")
+    assert "PDF content" in text
+
+
+def test_extract_docx(tmp_path):
+    from docx import Document
+    doc = Document()
+    doc.add_paragraph("DOCX paragraph about financial reports.")
+    docx_path = tmp_path / "test.docx"
+    doc.save(str(docx_path))
+
+    text = extract_text(
+        str(docx_path),
+        "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
+    )
+    assert "DOCX paragraph" in text
+
+
+def test_extract_unknown_falls_back_to_text(tmp_path):
+    p = tmp_path / "test.csv"
+    p.write_text("col1,col2\nval1,val2", encoding="utf-8")
+    text = extract_text(str(p), "text/csv")
+    assert "col1" in text
+
+
+def test_extract_truncation(tmp_path):
+    p = tmp_path / "big.txt"
+    p.write_text("A" * 60_000, encoding="utf-8")
+    text = extract_text(str(p), "text/plain")
+    assert len(text) <= 50_100  # 50k + truncation marker
+    assert "truncated" in text