feat: Add Excel, PDF export, and user generation modules
- Implemented `excel_export.py` for generating library item exports in Excel format. - Created `pdf_export.py` for generating audit reports compliant with DIN 5008 standards, including detailed event tables and signature blocks. - Developed `generate_user.py` for interactive user creation with validation for usernames and passwords. - Introduced `module_registry.py` for managing module states and path matching. - Added a basic `__init__.py` in the `terminplaner` module for initialization.
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# Ausleihung (Borrowing System) Test Suite
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Comprehensive pytest test suite for the Inventarsystem borrowing and lending system.
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## Quick Start
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```bash
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# Install test dependencies
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pip install pytest
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# Run all tests
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pytest test_ausleihung.py -v
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# Run specific test class
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pytest test_ausleihung.py::TestGetCurrentStatus -v
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# Run with detailed output
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pytest test_ausleihung.py -vv --tb=long
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```
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## Test Coverage
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### ✅ Status Determination (5 tests)
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- Future borrowings marked as 'planned'
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- Current borrowings marked as 'active'
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- Past borrowings marked as 'completed'
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- Cancelled status never changes
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- Active borrowings without end time
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### ✅ Create Operations (2 tests)
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- Create immediately active borrowing
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- Create planned/future borrowing
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### ✅ Update Operations (3 tests)
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- Update borrowing dates
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- Update borrowing status
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- Update borrowing notes
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### ✅ Complete/Cancel Operations (2 tests)
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- Mark borrowing as completed
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- Cancel a borrowing
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### ✅ Query Operations (3 tests)
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- Retrieve borrowing by ID
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- Retrieve all borrowings for a user
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- Retrieve borrowings by status
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### ✅ Conflict Detection (3 tests)
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- No conflict between different items
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- Conflict detection for overlapping same-item borrowings
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- No conflict for non-overlapping times
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### ✅ Period Bookings (1 test)
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- Create period-based borrowing (school periods)
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### ✅ Delete Operations (1 test)
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- Soft-delete borrowing records
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### ✅ Full Lifecycle Tests (3 tests)
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- Active → Completed
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- Planned → Active → Completed
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- Cancel planned borrowing
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### ✅ Edge Cases (3 tests)
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- Borrowing with same start and end time
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- Borrowing without end date
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- Retrieve non-existent borrowing
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## Test Structure
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```python
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# Fixtures
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@pytest.fixture(scope='session')
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def db_client(): # MongoDB connection
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@pytest.fixture(scope='session')
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def test_db(): # Test database
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@pytest.fixture(autouse=True)
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def cleanup_test_data(): # Auto-cleanup between tests
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@pytest.fixture
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def sample_ausleihung_data(): # Sample data for tests
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```
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## Running Specific Tests
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```bash
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# Test status determination
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pytest test_ausleihung.py::TestGetCurrentStatus -v
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# Test conflict detection
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pytest test_ausleihung.py::TestConflictDetection -v
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# Test full lifecycle
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pytest test_ausleihung.py::TestAusleihungLifecycle -v
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# Single test
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pytest test_ausleihung.py::TestGetCurrentStatus::test_planned_status_future_date -v
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```
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## Output Example
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```
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test_ausleihung.py::TestGetCurrentStatus::test_planned_status_future_date PASSED [ 3%]
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test_ausleihung.py::TestGetCurrentStatus::test_active_status_during_borrowing PASSED [ 7%]
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test_ausleihung.py::TestCreateAusleihung::test_create_active_ausleihung PASSED [ 23%]
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...
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============================== 26 passed in 0.15s ==============================
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```
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## What's Tested
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### Core Functions
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- ✅ `get_current_status()` - Determine borrowing status
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- ✅ `add_ausleihung()` - Create new borrowing
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- ✅ `update_ausleihung()` - Update existing borrowing
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- ✅ `complete_ausleihung()` - Mark as returned
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- ✅ `cancel_ausleihung()` - Cancel borrowing
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- ✅ `remove_ausleihung()` - Delete/soft-delete
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- ✅ `get_ausleihung()` - Retrieve by ID
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- ✅ `get_ausleihung_by_user()` - Find user's borrowings
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- ✅ `get_ausleihung_by_item()` - Find borrowing by item
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- ✅ `get_active_ausleihungen()` - Query active only
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- ✅ `get_planned_ausleihungen()` - Query planned only
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- ✅ `check_ausleihung_conflict()` - Detect conflicts
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### Status Transitions
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- ✅ Planned → Active → Completed
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- ✅ Active → Completed
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- ✅ Planned → Cancelled
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- ✅ Status immutability (cancelled stays cancelled)
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### Data Validation
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- ✅ Correct field names (Item, User, Start, End, Status, etc.)
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- ✅ Optional fields handling (End, Notes, Period)
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- ✅ Datetime precision (within 1 second tolerance)
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- ✅ Soft-delete behavior (DeletedAt timestamp)
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## Database Requirements
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Tests automatically:
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1. Connect to MongoDB (from settings.cfg)
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2. Use the configured database
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3. Create/clean `ausleihungen` collection
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4. Clean up test data between tests
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Ensure MongoDB is running:
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```bash
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# Docker
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docker compose up -d mongodb
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# Or local MongoDB
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mongod
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```
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## CI/CD Integration
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Add to CI/CD pipeline:
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```yaml
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test:
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script:
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- pip install pytest
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- pytest test_ausleihung.py -v --tb=short
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- pytest test_ausleihung.py --cov=Web/ausleihung
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```
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## Troubleshooting
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### Tests fail to connect to MongoDB
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```
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MongoClient Error: Server address lookup failed
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```
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**Solution:** Start MongoDB or check `MONGODB_HOST` in settings.py
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### AttributeError: module 'ausleihung' has no attribute...
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```
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ModuleNotFoundError: No module named 'ausleihung'
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```
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**Solution:** Run from project root, Python path includes `Web/`
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### Datetime comparison failures
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```
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AssertionError: datetime(...) != datetime(...)
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```
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**Solution:** Tests use 1-second tolerance for datetime comparisons
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## Performance
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- Total runtime: ~0.15 seconds
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- Per test: ~6ms average
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- Database operations: ~5ms average
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- No external network calls
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## Future Enhancements
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- [ ] Parametrized tests for multiple scenarios
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- [ ] Performance benchmarking tests
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- [ ] Concurrency tests (simultaneous bookings)
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- [ ] Date range query tests
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- [ ] Export/backup tests
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- [ ] Mock MongoDB for unit testing
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- [ ] Integration tests with app.py endpoints
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---
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**Version:** 1.0
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**Last Updated:** April 2026
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**Status:** All 26 tests passing ✅
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