tests

LayerLens Test Suite

This directory contains the test suite for LayerLens, organized into unit tests and integration tests.

Structure

tests/
├── conftest.py              # Pytest fixtures and configuration
├── unit/                    # Unit tests for individual components
│   ├── test_profiling_aggregators.py
│   ├── test_profiling_analyzers.py
│   └── test_optimization_solver.py
├── integration/             # Integration tests for full pipelines
│   └── test_pipeline_e2e.py
└── fixtures/               # Test fixtures and sample data

Running Tests

# Install test dependencies
pip install -e .[dev]

# Run all tests
pytest

# Run with coverage
pytest --cov=layerlens --cov-report=html

# Run specific test file
pytest tests/unit/test_profiling_analyzers.py

# Run with verbose output
pytest -v

Test Categories

Unit Tests

Test individual components in isolation:

• Profiling aggregators
• Profiling analyzers
• Optimization solver
• Configuration classes
• Model specifications

Integration Tests

Test full pipeline workflows:

• End-to-end pipeline execution
• Manifest generation
• Latency profiling
• Multi-model scenarios

Writing New Tests

1. Unit tests: Add to tests/unit/ with descriptive names like test_<component>_<behavior>.py
2. Integration tests: Add to tests/integration/ for full workflow tests
3. Fixtures: Add reusable fixtures to tests/conftest.py
4. Follow pytest conventions: Use descriptive test function names starting with test_

Coverage Goals

• Unit test coverage: >80%
• Integration test coverage: >60%
• Critical path coverage: 100%