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ShroominicandClaude Opus 4.8
e972b62758
When an upstream reports a non-zero USD cost but the response carries no tokens at all (input, output, cache-read and cache-creation all zero), the USD path billed the full USD-derived amount for an empty response. Return an all-zero cost (full refund) for that case only. The gate is tightened relative to the superseded PR #489: a cache-read- or cache-creation-only turn legitimately reports zero prompt/completion tokens with a real cost and must still be billed, so the refund only fires when every token bucket is zero. Adds unit tests covering both the refund and the still-billed cache-only path. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
FastAPI Async Unit Tests
This directory contains async unit tests for the Routstr proxy FastAPI application.
Installation
First, ensure you have the development dependencies installed:
uv pip install -e ".[dev]"
Running Tests
To run all tests:
pytest
To run tests with coverage:
pytest --cov=routstr --cov-report=html
To run specific test files:
pytest tests/test_main.py
pytest tests/test_models.py
pytest tests/test_proxy.py
To run only async tests:
pytest -m asyncio
Test Structure
conftest.py- Pytest fixtures and configurationtest_main.py- Tests for main app endpointstest_account.py- Tests for wallet/account management endpointstest_proxy.py- Tests for the proxy functionality with mocked upstreamtest_models.py- Tests for model pricing and data structures
Key Fixtures
async_client- Async HTTP client for testing FastAPI endpointstest_session- In-memory SQLite database session for teststest_api_key- Pre-configured API key with balanceapi_key_with_balance- API key with sufficient balance for proxy tests
Environment Variables
The tests automatically set up required environment variables in conftest.py. No manual configuration needed.
Writing New Tests
- Use
@pytest.mark.asynciofor async tests - Use the provided fixtures for database and client access
- Mock external dependencies (like upstream API calls)
- Test both success and error cases
- Verify database state changes when applicable