llama-stack-mirror/tests/unit
Ashwin Bharambe 2c56a8560d fix(context): prevent provider data leak between streaming requests (#3924)
## Summary

- `preserve_contexts_async_generator` left `PROVIDER_DATA_VAR` (and
other context vars) populated after a streaming generator completed on
HEAD~1, so the asyncio context for request N+1 started with request N's
provider payload.
- FastAPI dependencies and middleware execute before
`request_provider_data_context` rebinds the header data, meaning
auth/logging hooks could observe a prior tenant's credentials or treat
them as authenticated. Traces and any background work that inspects the
context outside the `with` block leak as well—this is a real security
regression, not just a CLI artifact.
- The wrapper now restores each tracked `ContextVar` to the value it
held before the iteration (falling back to clearing when necessary)
after every yield and when the generator terminates, so provider data is
wiped while callers that set their own defaults keep them.

## Test Plan

- `uv run pytest tests/unit/core/test_provider_data_context.py -q`
- `uv run pytest tests/unit/distribution/test_context.py -q`

Both suites fail on HEAD~1 and pass with this change.
2025-10-30 14:14:36 -07:00
..
cli feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
conversations feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
core fix(context): prevent provider data leak between streaming requests (#3924) 2025-10-30 14:14:36 -07:00
distribution chore: remove build.py (#3869) 2025-10-20 16:28:15 -07:00
files feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
models feat(tools)!: substantial clean up of "Tool" related datatypes (#3627) 2025-10-02 15:12:03 -07:00
prompts/prompts feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
providers fix: remove consistency checks (#3881) 2025-10-21 14:40:14 -07:00
rag revert: "chore(cleanup)!: remove tool_runtime.rag_tool" (#3877) 2025-10-21 11:22:06 -07:00
registry chore(cleanup)!: kill vector_db references as far as possible (#3864) 2025-10-20 20:06:16 -07:00
server chore(cleanup)!: kill vector_db references as far as possible (#3864) 2025-10-20 20:06:16 -07:00
tools feat(tools)!: substantial clean up of "Tool" related datatypes (#3627) 2025-10-02 15:12:03 -07:00
utils feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
__init__.py chore: Add fixtures to conftest.py (#2067) 2025-05-06 13:57:48 +02:00
conftest.py fix(tests): reduce some test noise (#3825) 2025-10-16 09:52:16 -07:00
fixtures.py chore(rename): move llama_stack.distribution to llama_stack.core (#2975) 2025-07-30 23:30:53 -07:00
README.md test: Measure and track code coverage (#2636) 2025-07-18 18:08:36 +02:00

Llama Stack Unit Tests

Unit Tests

Unit tests verify individual components and functions in isolation. They are fast, reliable, and don't require external services.

Prerequisites

  1. Python Environment: Ensure you have Python 3.12+ installed
  2. uv Package Manager: Install uv if not already installed

You can run the unit tests by running:

./scripts/unit-tests.sh [PYTEST_ARGS]

Any additional arguments are passed to pytest. For example, you can specify a test directory, a specific test file, or any pytest flags (e.g., -vvv for verbosity). If no test directory is specified, it defaults to "tests/unit", e.g:

./scripts/unit-tests.sh tests/unit/registry/test_registry.py -vvv

If you'd like to run for a non-default version of Python (currently 3.12), pass PYTHON_VERSION variable as follows:

source .venv/bin/activate
PYTHON_VERSION=3.13 ./scripts/unit-tests.sh

Test Configuration

  • Test Discovery: Tests are automatically discovered in the tests/unit/ directory
  • Async Support: Tests use --asyncio-mode=auto for automatic async test handling
  • Coverage: Tests generate coverage reports in htmlcov/ directory
  • Python Version: Defaults to Python 3.12, but can be overridden with PYTHON_VERSION environment variable

Coverage Reports

After running tests, you can view coverage reports:

# Open HTML coverage report in browser
open htmlcov/index.html  # macOS
xdg-open htmlcov/index.html  # Linux
start htmlcov/index.html  # Windows