mirror of
https://github.com/meta-llama/llama-stack.git
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132 lines
4.3 KiB
Python
132 lines
4.3 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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import json
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import pytest
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from llama_stack_client import Agent
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from llama_stack import LlamaStackAsLibraryClient
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from llama_stack.apis.models import ModelType
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from llama_stack.distribution.datatypes import AuthenticationRequiredError
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AUTH_TOKEN = "test-token"
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from tests.common.mcp import MCP_TOOLGROUP_ID, make_mcp_server
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@pytest.fixture(scope="function")
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def mcp_server():
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with make_mcp_server(required_auth_token=AUTH_TOKEN) as mcp_server_info:
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yield mcp_server_info
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def test_mcp_invocation(llama_stack_client, mcp_server):
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if not isinstance(llama_stack_client, LlamaStackAsLibraryClient):
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pytest.skip("The local MCP server only reliably reachable from library client.")
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test_toolgroup_id = MCP_TOOLGROUP_ID
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uri = mcp_server["server_url"]
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# registering should not raise an error anymore even if you don't specify the auth token
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llama_stack_client.toolgroups.register(
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toolgroup_id=test_toolgroup_id,
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provider_id="model-context-protocol",
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mcp_endpoint=dict(uri=uri),
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)
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provider_data = {
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"mcp_headers": {
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uri: {
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"Authorization": f"Bearer {AUTH_TOKEN}",
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},
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},
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}
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auth_headers = {
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"X-LlamaStack-Provider-Data": json.dumps(provider_data),
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}
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with pytest.raises(Exception, match="Unauthorized"):
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llama_stack_client.tools.list()
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response = llama_stack_client.tools.list(
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toolgroup_id=test_toolgroup_id,
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extra_headers=auth_headers,
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)
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assert len(response) == 2
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assert {t.identifier for t in response} == {"greet_everyone", "get_boiling_point"}
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response = llama_stack_client.tool_runtime.invoke_tool(
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tool_name="greet_everyone",
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kwargs=dict(url="https://www.google.com"),
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extra_headers=auth_headers,
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)
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content = response.content
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assert len(content) == 1
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assert content[0].type == "text"
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assert content[0].text == "Hello, world!"
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models = [
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m for m in llama_stack_client.models.list() if m.model_type == ModelType.llm and "guard" not in m.identifier
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]
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model_id = models[0].identifier
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print(f"Using model: {model_id}")
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agent = Agent(
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client=llama_stack_client,
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model=model_id,
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instructions="You are a helpful assistant.",
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tools=[test_toolgroup_id],
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)
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session_id = agent.create_session("test-session")
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response = agent.create_turn(
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session_id=session_id,
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messages=[
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{
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"role": "user",
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"content": "Say hi to the world. Use tools to do so.",
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}
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],
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stream=False,
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extra_headers=auth_headers,
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)
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steps = response.steps
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first = steps[0]
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assert first.step_type == "inference"
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assert len(first.api_model_response.tool_calls) == 1
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tool_call = first.api_model_response.tool_calls[0]
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assert tool_call.tool_name == "greet_everyone"
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second = steps[1]
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assert second.step_type == "tool_execution"
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tool_response_content = second.tool_responses[0].content
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assert len(tool_response_content) == 1
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assert tool_response_content[0].type == "text"
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assert tool_response_content[0].text == "Hello, world!"
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third = steps[2]
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assert third.step_type == "inference"
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# when streaming, we currently don't check auth headers upfront and fail the request
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# early. but we should at least be generating a 401 later in the process.
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response = agent.create_turn(
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session_id=session_id,
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messages=[
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{
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"role": "user",
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"content": "What is the boiling point of polyjuice? Use tools to answer.",
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}
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],
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stream=True,
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)
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if isinstance(llama_stack_client, LlamaStackAsLibraryClient):
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with pytest.raises(AuthenticationRequiredError):
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for _ in response:
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pass
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else:
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error_chunks = [chunk for chunk in response if "error" in chunk.model_dump()]
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assert len(error_chunks) == 1
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chunk = error_chunks[0].model_dump()
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assert "Unauthorized" in chunk["error"]["message"]
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