llama-stack-mirror/tests/integration/safety/test_vision_safety.py
Charlie Doern 840ad75fe9
feat: split API and provider specs into separate llama-stack-api pkg (#3895)
# What does this PR do?

Extract API definitions and provider specifications into a standalone
llama-stack-api package that can be published to PyPI independently of
the main llama-stack server.


see: https://github.com/llamastack/llama-stack/pull/2978 and
https://github.com/llamastack/llama-stack/pull/2978#issuecomment-3145115942

Motivation

External providers currently import from llama-stack, which overrides
the installed version and causes dependency conflicts. This separation
allows external providers to:

- Install only the type definitions they need without server
dependencies
- Avoid version conflicts with the installed llama-stack package
- Be versioned and released independently

This enables us to re-enable external provider module tests that were
previously blocked by these import conflicts.

Changes

- Created llama-stack-api package with minimal dependencies (pydantic,
jsonschema)
- Moved APIs, providers datatypes, strong_typing, and schema_utils
- Updated all imports from llama_stack.* to llama_stack_api.*
- Configured local editable install for development workflow
- Updated linting and type-checking configuration for both packages

Next Steps

- Publish llama-stack-api to PyPI
- Update external provider dependencies
- Re-enable external provider module tests


Pre-cursor PRs to this one:

- #4093 
- #3954 
- #4064 

These PRs moved key pieces _out_ of the Api pkg, limiting the scope of
change here.


relates to #3237 

## Test Plan

Package builds successfully and can be imported independently. All
pre-commit hooks pass with expected exclusions maintained.

---------

Signed-off-by: Charlie Doern <cdoern@redhat.com>
2025-11-13 11:51:17 -08:00

70 lines
2.4 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import base64
import mimetypes
import os
import pytest
from llama_stack_api import ViolationLevel
VISION_SHIELD_ENABLED_PROVIDERS = {"together"}
def data_url_from_image(file_path):
mime_type, _ = mimetypes.guess_type(file_path)
if mime_type is None:
raise ValueError("Could not determine MIME type of the file")
with open(file_path, "rb") as image_file:
encoded_string = base64.b64encode(image_file.read()).decode("utf-8")
data_url = f"data:{mime_type};base64,{encoded_string}"
return data_url
def test_safety_with_image(llama_stack_client, model_providers):
vision_safety_enabled = len(VISION_SHIELD_ENABLED_PROVIDERS & model_providers) > 0
if not vision_safety_enabled:
pytest.skip(f"Testing vision shields is not supported for model_providers {model_providers}")
current_dir = os.path.dirname(os.path.abspath(__file__))
unsafe_example_img_path = f"{current_dir}/resources/example_unsafe.jpg"
safe_example_img_path = f"{current_dir}/resources/example_safe.jpg"
examples = {
"safe": safe_example_img_path,
"unsafe": unsafe_example_img_path,
}
for _, file_path in examples.items():
message = {
"role": "user",
"content": [
{
"type": "text",
"text": "Tell me how to assemble this",
},
{
"type": "image",
"image": {"url": {"uri": data_url_from_image(file_path)}},
},
],
}
response = llama_stack_client.safety.run_shield(
messages=[message],
shield_id="meta-llama/Llama-Guard-3-11B-Vision",
params={},
)
assert response is not None
# FIXME: We are getting flaky results with the unsafe example:
# 1. sometimes it is marked as safe
# 2. sometimes it is marked as unsafe but with incorrect violation_type
# 3. sometimes it is marked as unsafe with correct violation_type
if response.violation is not None:
assert response.violation.violation_level == ViolationLevel.ERROR.value
assert response.violation.user_message == "I can't answer that. Can I help with something else?"