llama-stack/tests/verifications

Llama Stack Verifications

Llama Stack Verifications provide standardized test suites to ensure API compatibility and behavior consistency across different LLM providers. These tests help verify that different models and providers implement the expected interfaces and behaviors correctly.

Overview

This framework allows you to run the same set of verification tests against different LLM providers' OpenAI-compatible endpoints (Fireworks, Together, Groq, Cerebras, etc., and OpenAI itself) to ensure they meet the expected behavior and interface standards.

Features

The verification suite currently tests the following in both streaming and non-streaming modes:

• Basic chat completions
• Image input capabilities
• Structured JSON output formatting
• Tool calling functionality

Report

The lastest report can be found at REPORT.md.

To update the report, ensure you have the API keys set,

export OPENAI_API_KEY=<your_openai_api_key>
export FIREWORKS_API_KEY=<your_fireworks_api_key>
export TOGETHER_API_KEY=<your_together_api_key>

then run

uv run python tests/verifications/generate_report.py --run-tests

Running Tests

To run the verification tests, use pytest with the following parameters:

cd llama-stack
pytest tests/verifications/openai_api --provider=<provider-name>

Example:

# Run all tests
pytest tests/verifications/openai_api --provider=together

# Only run tests with Llama 4 models
pytest tests/verifications/openai_api --provider=together -k 'Llama-4'

Parameters

• --provider: The provider name (openai, fireworks, together, groq, cerebras, etc.)
• --base-url: The base URL for the provider's API (optional - defaults to the standard URL for the specified provider)
• --api-key: Your API key for the provider (optional - defaults to the standard API_KEY name for the specified provider)

Supported Providers

The verification suite supports any provider with an OpenAI compatible endpoint.

See tests/verifications/conf/ for the list of supported providers.

To run on a new provider, simply add a new yaml file to the conf/ directory with the provider config. See tests/verifications/conf/together.yaml for an example.

Adding New Test Cases

To add new test cases, create appropriate JSON files in the openai_api/fixtures/test_cases/ directory following the existing patterns.

Structure

• __init__.py - Marks the directory as a Python package
• conf/ - Provider-specific configuration files
• openai_api/ - Tests specific to OpenAI-compatible APIs
  • fixtures/ - Test fixtures and utilities
    • fixtures.py - Provider-specific fixtures
    • load.py - Utilities for loading test cases
    • test_cases/ - JSON test case definitions
  • test_chat_completion.py - Tests for chat completion APIs