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# Mosaic Unit Tests
This directory contains comprehensive unit tests for the Mosaic package.
## Running Tests
To run all tests:
```bash
pytest tests/
```
To run tests with coverage report:
```bash
pytest tests/ --cov=src/mosaic --cov-report=term-missing
```
To run a specific test file:
```bash
pytest tests/inference/test_data.py -v
```
## Test Structure
- `tests/inference/` - Tests for inference modules
- `test_data.py` - Tests for data structures and datasets
- `test_aeon.py` - Tests for Aeon inference module
- `test_paladin.py` - Tests for Paladin inference module
- `tests/test_gradio_app.py` - Tests for Gradio application utilities
- `tests/conftest.py` - Pytest configuration and fixtures
## Test Coverage
Current test coverage includes:
### Data Module (`mosaic.inference.data`)
- ✅ Cancer type mapping constants
- ✅ SiteType enum
- ✅ TileFeatureTensorDataset class
- Dataset initialization
- Feature padding and truncation
- Data type conversions
- Site type handling
### Aeon Module (`mosaic.inference.aeon`)
- ✅ Module constants
- ✅ Cancer type indices
### Paladin Module (`mosaic.inference.paladin`)
- ✅ Model map loading
- ✅ Aeon score loading
- ✅ Cancer subtype selection
- ✅ Logits to point estimates conversion
- ✅ UsageError exception
### Gradio App Module (`mosaic.gradio_app`)
- ✅ Constants (IHC subtypes, settings columns)
- ✅ Settings loading and validation
- ✅ Oncotree code name retrieval
- ✅ CSV export functionality
## Notes
- Tests use mocking for external dependencies (e.g., mussel models, network requests)
- Some tests require pytest-mock for mocking functionality
- Tests are designed to run without requiring full model downloads or GPU access
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