# EU-Utility Test Suite

Comprehensive test suite for EU-Utility with >80% code coverage.

## Structure

```
tests/
├── conftest.py                 # Shared fixtures and configuration
├── unit/                       # Unit tests for core services
│   ├── test_event_bus.py
│   ├── test_plugin_api.py
│   ├── test_nexus_api.py
│   ├── test_data_store.py
│   ├── test_settings.py
│   ├── test_tasks.py
│   ├── test_log_reader.py
│   └── test_ocr_service.py
├── integration/                # Integration tests for plugins
│   ├── test_plugin_lifecycle.py
│   ├── test_plugin_communication.py
│   └── test_plugin_events.py
├── ui/                         # UI automation tests
│   ├── test_overlay_window.py
│   └── test_dashboard.py
├── performance/                # Performance benchmarks
│   └── test_performance.py
├── mocks/                      # Mock services for testing
│   ├── mock_overlay.py
│   ├── mock_api.py
│   └── mock_services.py
└── fixtures/                   # Test data and fixtures
    ├── sample_logs/
    └── sample_images/
```

## Running Tests

```bash
# Run all tests
pytest

# Run with coverage report
pytest --cov=core --cov=plugins --cov-report=html

# Run specific test categories
pytest -m unit
pytest -m integration
pytest -m ui
pytest -m performance

# Run tests excluding slow ones
pytest -m "not slow"

# Run tests excluding network-dependent
pytest -m "not requires_network"
```

## Coverage Requirements

- Core services: >90%
- Plugin base: >85%
- Integration tests: >80%
- Overall: >80%

## CI/CD

Tests run automatically on:
- Every push to main
- Every pull request
- Nightly builds

See `.github/workflows/test.yml` for configuration.