feat(ocr): Add validation system and CLIENT CUI extraction
OCR Data Extraction Validation System: - Add 7 validation rules (amount range, TVA ratio, payment sum, etc.) - Add Medium preprocessing to replace Heavy (fixes digit concatenation) - Add validation warnings to API responses - Flag receipts needing manual review (needs_manual_review field) - Add database migration for needs_manual_review column CLIENT CUI Extraction Improvements: - Support all format variations: CIF CLIENT:, CLIENT C.U.I/C.I.F., etc. - Handle OCR errors (R0 vs RO, C1F vs CIF) - Add client_name, client_cui, client_address to API response - Add validation fields to API response (was missing) QA Review: 12 issues found, 9 fixed (5 errors + 4 warnings) - Fixed type safety in validation rules - Fixed ZeroDivisionError risk - Fixed schema mismatch (Optional[bool] for needs_manual_review) - All 37 unit tests passing 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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"""
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Integration tests for OCR validation system.
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These tests verify the end-to-end validation flow with real OCR processing.
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IMPORTANT: These tests require:
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1. PaddleOCR models downloaded
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2. Tesseract installed
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3. Test receipt files in docs/data-entry/
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Run with: pytest backend/modules/data_entry/tests/test_ocr_validation_integration.py -v
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"""
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import pytest
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from pathlib import Path
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from decimal import Decimal
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# Mark all tests as integration tests (slower, require OCR models)
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pytestmark = pytest.mark.integration
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@pytest.fixture
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def five_holding_receipt_path():
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"""Path to Five-Holding production receipt (85.99 LEI test case)."""
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return Path("docs/data-entry/igiena 14 decembrie five-holding.pdf")
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class TestProductionCaseFiveHolding:
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"""Test the critical Five-Holding receipt case (85.99 not 859,762.16)."""
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def test_correct_amount_extracted(self, five_holding_receipt_path):
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"""Verify Five-Holding receipt extracts 85.99 LEI, not 859,762.16."""
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# TODO: Implement when OCR service is running
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# from backend.modules.data_entry.services.ocr_service import OCRService
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# service = OCRService()
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# success, message, extraction = service.process_receipt(five_holding_receipt_path)
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#
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# assert success is True
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# assert extraction.amount == Decimal('85.99'), f"Expected 85.99, got {extraction.amount}"
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# assert extraction.tva_total == Decimal('14.92'), f"Expected 14.92, got {extraction.tva_total}"
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pytest.skip("Requires running OCR service - manual test")
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def test_no_magnitude_errors(self, five_holding_receipt_path):
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"""Verify no 10,000x magnitude errors."""
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# TODO: Verify extraction.amount < 1000 (not 859,762.16)
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pytest.skip("Requires running OCR service - manual test")
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def test_validation_warnings_if_any(self, five_holding_receipt_path):
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"""Check validation warnings on Five-Holding receipt."""
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# TODO: extraction.validation_warnings should be empty or minimal
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pytest.skip("Requires running OCR service - manual test")
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class TestValidationIntegration:
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"""Test validation integration with OCR pipeline."""
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def test_payment_sum_validation_mock(self):
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"""Test payment sum validation with mocked data."""
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# This can run without OCR - just tests validation logic
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from backend.modules.data_entry.services.ocr.validation import OCRValidationEngine
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validator = OCRValidationEngine()
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# Case: Payment sum mismatch
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data = {
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'amount': 100.0,
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'card_amount': 50.0,
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'cash_amount': 40.0, # Sum = 90, diff = 10
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}
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result = validator.validate_extraction(data)
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assert result.needs_manual_review is True
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assert len(result.validation_warnings) > 0
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assert any('Payment sum' in w for w in result.validation_warnings)
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def test_tva_ratio_validation_mock(self):
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"""Test TVA ratio validation with mocked data."""
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from backend.modules.data_entry.services.ocr.validation import OCRValidationEngine
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validator = OCRValidationEngine()
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# Case: TVA too high (> 24%)
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data = {
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'amount': 100.0,
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'tva': 30.0, # 30% - invalid!
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}
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result = validator.validate_extraction(data)
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assert result.needs_manual_review is True
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assert any('TVA ratio' in w for w in result.validation_warnings)
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def test_amount_range_validation_mock(self):
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"""Test amount range validation with mocked data."""
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from backend.modules.data_entry.services.ocr.validation import OCRValidationEngine
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validator = OCRValidationEngine()
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# Case: Amount too high (> 100,000)
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data = {
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'amount': 859_762.16, # Production error case!
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}
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result = validator.validate_extraction(data)
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assert result.needs_manual_review is True
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assert len(result.validation_errors) > 0
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assert any('exceeds maximum' in e for e in result.validation_errors)
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def test_medium_ocr_preprocessing(self):
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"""Test that Medium OCR preprocessing works."""
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pytest.skip("Requires OCR models - manual test")
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# TODO:
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# from backend.modules.data_entry.services.image_preprocessor import ImagePreprocessor
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# preprocessor = ImagePreprocessor()
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# # Load test image
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# # Apply preprocess_medium()
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# # Verify output shape and values
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class TestDatabaseIntegration:
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"""Test database integration for needs_manual_review field."""
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def test_receipt_model_has_validation_field(self):
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"""Verify Receipt model has needs_manual_review field."""
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# TODO: Check Receipt model
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pytest.skip("Requires database connection")
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def test_migration_adds_column(self):
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"""Verify migration adds needs_manual_review column."""
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# TODO: Run migration and check column exists
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pytest.skip("Requires database connection")
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# =============================================================================
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# MANUAL TESTING CHECKLIST
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# =============================================================================
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"""
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MANUAL TESTS TO PERFORM:
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1. Five-Holding Receipt Test (Production Case)
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□ Upload: docs/data-entry/igiena 14 decembrie five-holding.pdf
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□ Verify TOTAL: 85.99 LEI (not 859,762.16)
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□ Verify TVA: 14.92 LEI (not 149,214.92)
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□ Verify CUI: R010562600
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□ Verify no validation warnings (or only minor ones)
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2. Database Migration Test
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□ Run: alembic upgrade head
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□ Check: receipts table has needs_manual_review column
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□ Verify: Existing receipts have NULL value
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□ Verify: New receipts get TRUE/FALSE values
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3. API Response Test
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□ POST /api/ocr/extract with test receipt
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□ Verify response includes: needs_manual_review, validation_warnings
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□ Verify Save button works even with warnings
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4. Validation Rules Test
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□ Test with receipt having wrong amounts (should flag)
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□ Test with receipt having correct amounts (should pass)
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□ Test payment sum mismatch detection
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□ Test TVA ratio validation
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5. Medium OCR vs Heavy OCR
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□ Compare results on clear PDFs
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□ Verify no digit concatenation errors
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□ Check processing time is similar
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6. Unit Tests
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□ Run: pytest backend/modules/data_entry/tests/test_ocr_validation.py -v
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□ Verify: All tests pass
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□ Check: Coverage > 90%
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"""
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if __name__ == "__main__":
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pytest.main([__file__, "-v", "--tb=short"])
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