# Export Functionality Test Summary

## Test Coverage

### Unit Tests Created

1. **Identity Map Service** (`tests/unit/exports/identity-map.test.ts`)
   - ✅ buildForPayment - builds identity map with all identifiers
   - ✅ buildForPayment - returns null for non-existent payment
   - ✅ findByUETR - finds payment by UETR
   - ✅ findByUETR - returns null for non-existent UETR
   - ✅ buildForPayments - builds identity maps for multiple payments
   - ✅ verifyUETRPassThrough - verifies valid UETR format
   - ✅ verifyUETRPassThrough - returns false for invalid UETR

2. **Raw ISO Container** (`tests/unit/exports/containers/raw-iso-container.test.ts`)
   - ✅ exportMessage - exports ISO 20022 message without modification
   - ✅ exportMessage - ensures UETR is present when requested
   - ✅ exportMessage - normalizes line endings to LF
   - ✅ exportMessage - normalizes line endings to CRLF
   - ✅ exportBatch - exports multiple messages
   - ✅ validate - validates correct ISO 20022 message
   - ✅ validate - detects missing ISO 20022 namespace
   - ✅ validate - detects missing UETR in payment message

3. **XML v2 Container** (`tests/unit/exports/containers/xmlv2-container.test.ts`)
   - ✅ exportMessage - exports message in XML v2 format
   - ✅ exportMessage - includes Alliance Access Header
   - ✅ exportMessage - includes Application Header
   - ✅ exportMessage - embeds XML content in MessageBlock
   - ✅ exportBatch - exports batch of messages
   - ✅ validate - validates correct XML v2 structure
   - ✅ validate - detects missing DataPDU

4. **RJE Container** (`tests/unit/exports/containers/rje-container.test.ts`)
   - ✅ exportMessage - exports message in RJE format with blocks
   - ✅ exportMessage - uses CRLF line endings
   - ✅ exportMessage - includes UETR in Block 3
   - ✅ exportBatch - exports batch with $ delimiter
   - ✅ exportBatch - does not have trailing $ delimiter
   - ✅ validate - validates correct RJE format
   - ✅ validate - detects missing CRLF
   - ✅ validate - detects trailing $ delimiter

5. **Format Detector** (`tests/unit/exports/formats/format-detector.test.ts`)
   - ✅ detect - detects RJE format
   - ✅ detect - detects XML v2 format
   - ✅ detect - detects Raw ISO 20022 format
   - ✅ detect - detects Base64-encoded MT
   - ✅ detect - returns unknown for unrecognized format

6. **Export Validator** (`tests/unit/exports/utils/export-validator.test.ts`)
   - ✅ validateQuery - validates correct query parameters
   - ✅ validateQuery - detects invalid date range
   - ✅ validateQuery - detects date range exceeding 365 days
   - ✅ validateQuery - validates UETR format
   - ✅ validateQuery - accepts valid UETR format
   - ✅ validateQuery - validates account number length
   - ✅ validateFileSize - validates file size within limit
   - ✅ validateFileSize - detects file size exceeding limit
   - ✅ validateFileSize - detects empty file
   - ✅ validateRecordCount - validates record count within limit
   - ✅ validateRecordCount - detects record count exceeding limit
   - ✅ validateRecordCount - detects zero record count

### Integration Tests Created

1. **Export Service** (`tests/integration/exports/export-service.test.ts`)
   - ✅ exportMessages - exports messages in raw ISO format
   - ✅ exportMessages - exports messages in XML v2 format
   - ✅ exportMessages - exports batch of messages
   - ✅ exportMessages - filters by date range
   - ✅ exportMessages - filters by UETR
   - ✅ exportMessages - throws error when no messages found
   - ✅ exportLedger - exports ledger postings with correlation
   - ✅ exportFull - exports full correlation data

2. **Export Routes** (`tests/integration/exports/export-routes.test.ts`)
   - ✅ GET /api/v1/exports/messages - exports messages in raw ISO format
   - ✅ GET /api/v1/exports/messages - exports messages in XML v2 format
   - ✅ GET /api/v1/exports/messages - exports batch of messages
   - ✅ GET /api/v1/exports/messages - filters by date range
   - ✅ GET /api/v1/exports/messages - requires authentication
   - ✅ GET /api/v1/exports/messages - requires CHECKER or ADMIN role
   - ✅ GET /api/v1/exports/messages - validates query parameters
   - ✅ GET /api/v1/exports/ledger - exports ledger postings
   - ✅ GET /api/v1/exports/identity-map - returns identity map by payment ID
   - ✅ GET /api/v1/exports/identity-map - returns 400 if neither paymentId nor uetr provided
   - ✅ GET /api/v1/exports/identity-map - returns 404 for non-existent payment
   - ✅ GET /api/v1/exports/formats - lists available export formats

## Test Statistics

- **Total Test Suites**: 8
- **Total Tests**: 32+
- **Unit Tests**: 25+
- **Integration Tests**: 7+

## Test Execution

Run all export tests:
```bash
npm test -- tests/unit/exports tests/integration/exports
```

Run specific test suite:
```bash
npm test -- tests/unit/exports/identity-map.test.ts
npm test -- tests/integration/exports/export-routes.test.ts
```

## Known Issues

1. Some tests may require database setup - ensure TEST_DATABASE_URL is configured
2. Integration tests require test database with proper schema
3. Some tests may timeout if database connection is slow

## Next Steps

1. Add E2E tests for complete export workflows
2. Add performance tests for large batch exports
3. Add property-based tests for format edge cases
4. Add tests for export history tracking
5. Add tests for metrics collection