1280 lines
45 KiB
Python
1280 lines
45 KiB
Python
import os
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import threading
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import time
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import uuid
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from typing import List
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from unittest.mock import patch
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import pytest
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import requests
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from dotenv import load_dotenv
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from letta_client import AgentState, ApprovalCreate, Letta, LlmConfig, MessageCreate, Tool
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from letta_client.core.api_error import ApiError
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from letta.adapters.simple_llm_stream_adapter import SimpleLLMStreamAdapter
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from letta.interfaces.anthropic_streaming_interface import AnthropicStreamingInterface
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from letta.log import get_logger
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from letta.schemas.enums import AgentType
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logger = get_logger(__name__)
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# ------------------------------
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# Helper Functions and Constants
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# ------------------------------
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USER_MESSAGE_OTID = str(uuid.uuid4())
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USER_MESSAGE_CONTENT = "This is an automated test message. Call the get_secret_code_tool to get the code for text 'hello world'."
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USER_MESSAGE_TEST_APPROVAL: List[MessageCreate] = [
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MessageCreate(
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role="user",
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content=USER_MESSAGE_CONTENT,
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otid=USER_MESSAGE_OTID,
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)
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]
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FAKE_REQUEST_ID = str(uuid.uuid4())
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SECRET_CODE = str(740845635798344975)
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USER_MESSAGE_FOLLOW_UP_OTID = str(uuid.uuid4())
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USER_MESSAGE_FOLLOW_UP_CONTENT = "Thank you for the secret code."
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USER_MESSAGE_FOLLOW_UP: List[MessageCreate] = [
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MessageCreate(
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role="user",
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content=USER_MESSAGE_FOLLOW_UP_CONTENT,
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otid=USER_MESSAGE_FOLLOW_UP_OTID,
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)
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]
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USER_MESSAGE_PARALLEL_TOOL_CALL_CONTENT = "This is an automated test message. Call the get_secret_code_tool 3 times in parallel for the following inputs: 'hello world', 'hello letta', 'hello test', and also call the roll_dice_tool once with a 16-sided dice."
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USER_MESSAGE_PARALLEL_TOOL_CALL: List[MessageCreate] = [
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MessageCreate(
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role="user",
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content=USER_MESSAGE_PARALLEL_TOOL_CALL_CONTENT,
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otid=USER_MESSAGE_OTID,
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)
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]
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def get_secret_code_tool(input_text: str) -> str:
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"""
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A tool that returns the secret code based on the input. This tool requires approval before execution.
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Args:
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input_text (str): The input text to process.
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Returns:
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str: The secret code based on the input text.
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"""
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return str(abs(hash(input_text)))
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def roll_dice_tool(num_sides: int) -> str:
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"""
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A tool that returns a random number between 1 and num_sides.
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Args:
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num_sides (int): The number of sides on the die.
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Returns:
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str: The random number between 1 and num_sides.
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"""
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import random
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return str(random.randint(1, num_sides))
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def accumulate_chunks(stream):
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messages = []
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prev_message_type = None
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for chunk in stream:
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current_message_type = chunk.message_type
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if prev_message_type != current_message_type:
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messages.append(chunk)
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prev_message_type = current_message_type
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return messages
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def approve_tool_call(client: Letta, agent_id: str, tool_call_id: str):
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client.agents.messages.create(
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agent_id=agent_id,
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messages=[
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ApprovalCreate(
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approve=False, # legacy (passing incorrect value to ensure it is overridden)
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approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
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approvals=[
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{
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"type": "approval",
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"approve": True,
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"tool_call_id": tool_call_id,
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},
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],
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),
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],
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)
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# ------------------------------
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# Fixtures
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# ------------------------------
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@pytest.fixture(scope="module")
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def server_url() -> str:
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"""
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Provides the URL for the Letta server.
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If LETTA_SERVER_URL is not set, starts the server in a background thread
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and polls until it's accepting connections.
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"""
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def _run_server() -> None:
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load_dotenv()
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from letta.server.rest_api.app import start_server
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start_server(debug=True)
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url: str = os.getenv("LETTA_SERVER_URL", "http://localhost:8283")
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if not os.getenv("LETTA_SERVER_URL"):
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thread = threading.Thread(target=_run_server, daemon=True)
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thread.start()
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# Poll until the server is up (or timeout)
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timeout_seconds = 30
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deadline = time.time() + timeout_seconds
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while time.time() < deadline:
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try:
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resp = requests.get(url + "/v1/health")
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if resp.status_code < 500:
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break
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except requests.exceptions.RequestException:
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pass
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time.sleep(0.1)
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else:
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raise RuntimeError(f"Could not reach {url} within {timeout_seconds}s")
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return url
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@pytest.fixture(scope="module")
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def client(server_url: str) -> Letta:
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"""
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Creates and returns a synchronous Letta REST client for testing.
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"""
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client_instance = Letta(base_url=server_url)
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yield client_instance
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@pytest.fixture(scope="function")
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def approval_tool_fixture(client: Letta) -> Tool:
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"""
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Creates and returns a tool that requires approval for testing.
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"""
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client.tools.upsert_base_tools()
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approval_tool = client.tools.upsert_from_function(
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func=get_secret_code_tool,
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default_requires_approval=True,
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)
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yield approval_tool
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client.tools.delete(tool_id=approval_tool.id)
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@pytest.fixture(scope="function")
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def dice_tool_fixture(client: Letta) -> Tool:
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client.tools.upsert_base_tools()
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dice_tool = client.tools.upsert_from_function(
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func=roll_dice_tool,
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)
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yield dice_tool
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client.tools.delete(tool_id=dice_tool.id)
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@pytest.fixture(scope="function")
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def agent(client: Letta, approval_tool_fixture, dice_tool_fixture) -> AgentState:
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"""
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Creates and returns an agent state for testing with a pre-configured agent.
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The agent is configured with the requires_approval_tool.
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"""
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agent_state = client.agents.create(
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name="approval_test_agent",
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agent_type=AgentType.letta_v1_agent,
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include_base_tools=False,
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tool_ids=[approval_tool_fixture.id, dice_tool_fixture.id],
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include_base_tool_rules=False,
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tool_rules=[],
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# parallel_tool_calls=True,
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model="anthropic/claude-sonnet-4-5-20250929",
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embedding="openai/text-embedding-3-small",
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tags=["approval_test"],
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)
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agent_state = client.agents.modify(
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agent_id=agent_state.id, llm_config=dict(agent_state.llm_config.model_dump(), **{"parallel_tool_calls": True})
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)
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yield agent_state
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client.agents.delete(agent_id=agent_state.id)
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# ------------------------------
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# Error Test Cases
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# ------------------------------
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def test_send_approval_without_pending_request(client, agent):
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with pytest.raises(ApiError, match="No tool call is currently awaiting approval"):
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client.agents.messages.create(
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agent_id=agent.id,
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messages=[
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ApprovalCreate(
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approve=True, # legacy
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approval_request_id=FAKE_REQUEST_ID, # legacy
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approvals=[
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{
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"type": "approval",
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"approve": True,
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"tool_call_id": FAKE_REQUEST_ID,
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},
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],
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),
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],
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)
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def test_send_user_message_with_pending_request(client, agent):
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response = client.agents.messages.create(
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agent_id=agent.id,
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messages=USER_MESSAGE_TEST_APPROVAL,
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)
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with pytest.raises(ApiError, match="Please approve or deny the pending request before continuing"):
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client.agents.messages.create(
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agent_id=agent.id,
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messages=[MessageCreate(role="user", content="hi")],
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)
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approve_tool_call(client, agent.id, response.messages[2].tool_call.tool_call_id)
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def test_send_approval_message_with_incorrect_request_id(client, agent):
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response = client.agents.messages.create(
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agent_id=agent.id,
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messages=USER_MESSAGE_TEST_APPROVAL,
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)
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with pytest.raises(ApiError, match="Invalid tool call IDs"):
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client.agents.messages.create(
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agent_id=agent.id,
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messages=[
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ApprovalCreate(
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approve=True, # legacy
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approval_request_id=FAKE_REQUEST_ID, # legacy
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approvals=[
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{
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"type": "approval",
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"approve": True,
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"tool_call_id": FAKE_REQUEST_ID,
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},
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],
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),
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],
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)
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approve_tool_call(client, agent.id, response.messages[2].tool_call.tool_call_id)
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|
|
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# ------------------------------
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# Request Test Cases
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# ------------------------------
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def test_invoke_approval_request(
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client: Letta,
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agent: AgentState,
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) -> None:
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response = client.agents.messages.create(
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agent_id=agent.id,
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messages=USER_MESSAGE_TEST_APPROVAL,
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)
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messages = response.messages
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assert messages is not None
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assert len(messages) == 3
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assert messages[0].message_type == "reasoning_message"
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assert messages[1].message_type == "assistant_message"
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assert messages[2].message_type == "approval_request_message"
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assert messages[2].tool_call is not None
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assert messages[2].tool_call.name == "get_secret_code_tool"
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assert messages[2].tool_calls is not None
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assert len(messages[2].tool_calls) == 1
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assert messages[2].tool_calls[0]["name"] == "get_secret_code_tool"
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# v3/v1 path: approval request tool args must not include request_heartbeat
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import json as _json
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_args = _json.loads(messages[2].tool_call.arguments)
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assert "request_heartbeat" not in _args
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client.agents.context.retrieve(agent_id=agent.id)
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approve_tool_call(client, agent.id, response.messages[2].tool_call.tool_call_id)
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|
|
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def test_invoke_approval_request_stream(
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client: Letta,
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agent: AgentState,
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|
) -> None:
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response = client.agents.messages.create_stream(
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agent_id=agent.id,
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messages=USER_MESSAGE_TEST_APPROVAL,
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stream_tokens=True,
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)
|
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messages = accumulate_chunks(response)
|
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assert messages is not None
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assert len(messages) == 5
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assert messages[0].message_type == "reasoning_message"
|
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assert messages[1].message_type == "assistant_message"
|
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assert messages[2].message_type == "approval_request_message"
|
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assert messages[2].tool_call is not None
|
|
assert messages[2].tool_call.name == "get_secret_code_tool"
|
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assert messages[3].message_type == "stop_reason"
|
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assert messages[4].message_type == "usage_statistics"
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client.agents.context.retrieve(agent_id=agent.id)
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approve_tool_call(client, agent.id, messages[2].tool_call.tool_call_id)
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|
|
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def test_invoke_tool_after_turning_off_requires_approval(
|
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client: Letta,
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agent: AgentState,
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approval_tool_fixture: Tool,
|
|
) -> None:
|
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response = client.agents.messages.create(
|
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agent_id=agent.id,
|
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messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
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tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
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response = client.agents.messages.create_stream(
|
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agent_id=agent.id,
|
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messages=[
|
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ApprovalCreate(
|
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approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
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{
|
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"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": tool_call_id,
|
|
},
|
|
],
|
|
),
|
|
],
|
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stream_tokens=True,
|
|
)
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messages = accumulate_chunks(response)
|
|
|
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client.agents.tools.modify_approval(
|
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agent_id=agent.id,
|
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tool_name=approval_tool_fixture.name,
|
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requires_approval=False,
|
|
)
|
|
|
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response = client.agents.messages.create_stream(agent_id=agent.id, messages=USER_MESSAGE_TEST_APPROVAL, stream_tokens=True)
|
|
|
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messages = accumulate_chunks(response)
|
|
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assert messages is not None
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assert 6 <= len(messages) <= 9
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idx = 0
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assert messages[idx].message_type == "reasoning_message"
|
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idx += 1
|
|
|
|
try:
|
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assert messages[idx].message_type == "assistant_message"
|
|
idx += 1
|
|
except:
|
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pass
|
|
|
|
assert messages[idx].message_type == "tool_call_message"
|
|
idx += 1
|
|
assert messages[idx].message_type == "tool_return_message"
|
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idx += 1
|
|
|
|
assert messages[idx].message_type == "reasoning_message"
|
|
idx += 1
|
|
try:
|
|
assert messages[idx].message_type == "assistant_message"
|
|
idx += 1
|
|
except:
|
|
assert messages[idx].message_type == "tool_call_message"
|
|
idx += 1
|
|
assert messages[idx].message_type == "tool_return_message"
|
|
idx += 1
|
|
|
|
|
|
# ------------------------------
|
|
# Approve Test Cases
|
|
# ------------------------------
|
|
|
|
|
|
def test_approve_tool_call_request(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": tool_call_id,
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 3 or len(messages) == 5 or len(messages) == 6
|
|
assert messages[0].message_type == "tool_return_message"
|
|
assert messages[0].tool_call_id == tool_call_id
|
|
assert messages[0].status == "success"
|
|
if len(messages) == 4:
|
|
assert messages[1].message_type == "stop_reason"
|
|
assert messages[2].message_type == "usage_statistics"
|
|
elif len(messages) == 5:
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert messages[3].message_type == "stop_reason"
|
|
assert messages[4].message_type == "usage_statistics"
|
|
elif len(messages) == 6:
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "tool_call_message"
|
|
assert messages[3].message_type == "tool_return_message"
|
|
assert messages[4].message_type == "stop_reason"
|
|
assert messages[5].message_type == "usage_statistics"
|
|
|
|
|
|
def test_approve_cursor_fetch(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
last_message_cursor = client.agents.messages.list(agent_id=agent.id, limit=1)[0].id
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
last_message_id = response.messages[0].id
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_cursor)
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "user_message"
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert messages[3].message_type == "approval_request_message"
|
|
# Ensure no request_heartbeat on approval request
|
|
import json as _json
|
|
|
|
_args = _json.loads(messages[3].tool_call.arguments)
|
|
assert "request_heartbeat" not in _args
|
|
|
|
client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": tool_call_id,
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_id)
|
|
assert len(messages) == 2 or len(messages) == 4
|
|
assert messages[0].message_type == "approval_response_message"
|
|
assert messages[0].approval_request_id == tool_call_id
|
|
assert messages[0].approve is True
|
|
assert messages[0].approvals[0]["approve"] is True
|
|
assert messages[0].approvals[0]["tool_call_id"] == tool_call_id
|
|
assert messages[1].message_type == "tool_return_message"
|
|
assert messages[1].status == "success"
|
|
if len(messages) == 4:
|
|
assert messages[2].message_type == "reasoning_message"
|
|
assert messages[3].message_type == "assistant_message"
|
|
|
|
|
|
def test_approve_with_context_check(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": tool_call_id,
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
try:
|
|
client.agents.context.retrieve(agent_id=agent.id)
|
|
except Exception as e:
|
|
if len(messages) > 4:
|
|
raise ValueError("Model did not respond with only reasoning content, please rerun test to repro edge case.")
|
|
raise e
|
|
|
|
|
|
def test_approve_and_follow_up(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": tool_call_id,
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4 or len(messages) == 5
|
|
if len(messages) == 4:
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "stop_reason"
|
|
assert messages[3].message_type == "usage_statistics"
|
|
elif len(messages) == 5:
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "tool_call_message"
|
|
assert messages[2].message_type == "tool_return_message"
|
|
assert messages[3].message_type == "stop_reason"
|
|
assert messages[4].message_type == "usage_statistics"
|
|
|
|
|
|
def test_approve_and_follow_up_with_error(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
# Mock the streaming adapter to return llm invocation failure on the follow up turn
|
|
with patch.object(SimpleLLMStreamAdapter, "invoke_llm", side_effect=ValueError("TEST: Mocked error")):
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": tool_call_id,
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
stop_reason_message = [m for m in messages if m.message_type == "stop_reason"][0]
|
|
assert stop_reason_message
|
|
assert stop_reason_message.stop_reason == "invalid_llm_response"
|
|
|
|
# Ensure that agent is not bricked
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4 or len(messages) == 5
|
|
assert messages[0].message_type == "reasoning_message"
|
|
if len(messages) == 4:
|
|
assert messages[1].message_type == "assistant_message"
|
|
else:
|
|
assert messages[1].message_type == "tool_call_message"
|
|
assert messages[2].message_type == "tool_return_message"
|
|
|
|
|
|
# ------------------------------
|
|
# Deny Test Cases
|
|
# ------------------------------
|
|
|
|
|
|
def test_deny_tool_call_request(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": False,
|
|
"tool_call_id": tool_call_id,
|
|
"reason": f"You don't need to call the tool, the secret code is {SECRET_CODE}",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 5
|
|
assert messages[0].message_type == "tool_return_message"
|
|
assert messages[0].tool_call_id == tool_call_id
|
|
assert messages[0].status == "error"
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert SECRET_CODE in messages[2].content
|
|
assert messages[3].message_type == "stop_reason"
|
|
assert messages[4].message_type == "usage_statistics"
|
|
|
|
|
|
def test_deny_cursor_fetch(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
last_message_cursor = client.agents.messages.list(agent_id=agent.id, limit=1)[0].id
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
last_message_id = response.messages[0].id
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_cursor)
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "user_message"
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert messages[3].message_type == "approval_request_message"
|
|
assert messages[3].tool_call.tool_call_id == tool_call_id
|
|
# Ensure no request_heartbeat on approval request
|
|
# import json as _json
|
|
|
|
# _args = _json.loads(messages[2].tool_call.arguments)
|
|
# assert "request_heartbeat" not in _args
|
|
|
|
client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": False,
|
|
"tool_call_id": tool_call_id,
|
|
"reason": f"You don't need to call the tool, the secret code is {SECRET_CODE}",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_id)
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "approval_response_message"
|
|
assert messages[0].approvals[0]["approve"] == False
|
|
assert messages[0].approvals[0]["tool_call_id"] == tool_call_id
|
|
assert messages[0].approvals[0]["reason"] == f"You don't need to call the tool, the secret code is {SECRET_CODE}"
|
|
assert messages[1].message_type == "tool_return_message"
|
|
assert messages[1].status == "error"
|
|
assert messages[2].message_type == "reasoning_message"
|
|
assert messages[3].message_type == "assistant_message"
|
|
|
|
|
|
def test_deny_with_context_check(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason="Cancelled by user. Instead of responding, wait for next user input before replying.", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": False,
|
|
"tool_call_id": tool_call_id,
|
|
"reason": "Cancelled by user. Instead of responding, wait for next user input before replying.",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
try:
|
|
client.agents.context.retrieve(agent_id=agent.id)
|
|
except Exception as e:
|
|
if len(messages) > 4:
|
|
raise ValueError("Model did not respond with only reasoning content, please rerun test to repro edge case.")
|
|
raise e
|
|
|
|
|
|
def test_deny_and_follow_up(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": False,
|
|
"tool_call_id": tool_call_id,
|
|
"reason": f"You don't need to call the tool, the secret code is {SECRET_CODE}",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "stop_reason"
|
|
assert messages[3].message_type == "usage_statistics"
|
|
|
|
|
|
def test_deny_and_follow_up_with_error(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
# Mock the streaming adapter to return llm invocation failure on the follow up turn
|
|
with patch.object(SimpleLLMStreamAdapter, "invoke_llm", side_effect=ValueError("TEST: Mocked error")):
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": False,
|
|
"tool_call_id": tool_call_id,
|
|
"reason": f"You don't need to call the tool, the secret code is {SECRET_CODE}",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
stop_reason_message = [m for m in messages if m.message_type == "stop_reason"][0]
|
|
assert stop_reason_message
|
|
assert stop_reason_message.stop_reason == "invalid_llm_response"
|
|
|
|
# Ensure that agent is not bricked
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "stop_reason"
|
|
assert messages[3].message_type == "usage_statistics"
|
|
|
|
|
|
# --------------------------------
|
|
# Client-Side Execution Test Cases
|
|
# --------------------------------
|
|
|
|
|
|
def test_client_side_tool_call_request(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "tool",
|
|
"tool_call_id": tool_call_id,
|
|
"tool_return": SECRET_CODE,
|
|
"status": "success",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 5
|
|
assert messages[0].message_type == "tool_return_message"
|
|
assert messages[0].tool_call_id == tool_call_id
|
|
assert messages[0].status == "success"
|
|
assert messages[0].tool_return == SECRET_CODE
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert SECRET_CODE in messages[2].content
|
|
assert messages[3].message_type == "stop_reason"
|
|
assert messages[4].message_type == "usage_statistics"
|
|
|
|
|
|
def test_client_side_tool_call_cursor_fetch(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
last_message_cursor = client.agents.messages.list(agent_id=agent.id, limit=1)[0].id
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
last_message_id = response.messages[0].id
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_cursor)
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "user_message"
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert messages[3].message_type == "approval_request_message"
|
|
assert messages[3].tool_call.tool_call_id == tool_call_id
|
|
# Ensure no request_heartbeat on approval request
|
|
# import json as _json
|
|
|
|
# _args = _json.loads(messages[2].tool_call.arguments)
|
|
# assert "request_heartbeat" not in _args
|
|
|
|
client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "tool",
|
|
"tool_call_id": tool_call_id,
|
|
"tool_return": SECRET_CODE,
|
|
"status": "success",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_id)
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "approval_response_message"
|
|
assert messages[0].approvals[0]["type"] == "tool"
|
|
assert messages[0].approvals[0]["tool_call_id"] == tool_call_id
|
|
assert messages[0].approvals[0]["tool_return"] == SECRET_CODE
|
|
assert messages[0].approvals[0]["status"] == "success"
|
|
assert messages[1].message_type == "tool_return_message"
|
|
assert messages[1].status == "success"
|
|
assert messages[1].tool_call_id == tool_call_id
|
|
assert messages[1].tool_return == SECRET_CODE
|
|
assert messages[2].message_type == "reasoning_message"
|
|
assert messages[3].message_type == "assistant_message"
|
|
|
|
|
|
def test_client_side_tool_call_with_context_check(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason="Cancelled by user. Instead of responding, wait for next user input before replying.", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "tool",
|
|
"tool_call_id": tool_call_id,
|
|
"tool_return": SECRET_CODE,
|
|
"status": "success",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
try:
|
|
client.agents.context.retrieve(agent_id=agent.id)
|
|
except Exception as e:
|
|
if len(messages) > 4:
|
|
raise ValueError("Model did not respond with only reasoning content, please rerun test to repro edge case.")
|
|
raise e
|
|
|
|
|
|
def test_client_side_tool_call_and_follow_up(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "tool",
|
|
"tool_call_id": tool_call_id,
|
|
"tool_return": SECRET_CODE,
|
|
"status": "success",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "stop_reason"
|
|
assert messages[3].message_type == "usage_statistics"
|
|
|
|
|
|
def test_client_side_tool_call_and_follow_up_with_error(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_TEST_APPROVAL,
|
|
)
|
|
tool_call_id = response.messages[2].tool_call.tool_call_id
|
|
|
|
# Mock the streaming adapter to return llm invocation failure on the follow up turn
|
|
with patch.object(SimpleLLMStreamAdapter, "invoke_llm", side_effect=ValueError("TEST: Mocked error")):
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=True, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
reason=f"You don't need to call the tool, the secret code is {SECRET_CODE}", # legacy
|
|
approvals=[
|
|
{
|
|
"type": "tool",
|
|
"tool_call_id": tool_call_id,
|
|
"tool_return": SECRET_CODE,
|
|
"status": "success",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
stop_reason_message = [m for m in messages if m.message_type == "stop_reason"][0]
|
|
assert stop_reason_message
|
|
assert stop_reason_message.stop_reason == "invalid_llm_response"
|
|
|
|
# Ensure that agent is not bricked
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "stop_reason"
|
|
assert messages[3].message_type == "usage_statistics"
|
|
|
|
|
|
def test_parallel_tool_calling(
|
|
client: Letta,
|
|
agent: AgentState,
|
|
) -> None:
|
|
last_message_cursor = client.agents.messages.list(agent_id=agent.id, limit=1)[0].id
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_PARALLEL_TOOL_CALL,
|
|
)
|
|
|
|
messages = response.messages
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "tool_call_message"
|
|
assert len(messages[2].tool_calls) == 1
|
|
assert messages[2].tool_calls[0]["name"] == "roll_dice_tool"
|
|
assert "6" in messages[2].tool_calls[0]["arguments"]
|
|
dice_tool_call_id = messages[2].tool_calls[0]["tool_call_id"]
|
|
|
|
assert messages[3].message_type == "approval_request_message"
|
|
assert messages[3].tool_call is not None
|
|
assert messages[3].tool_call.name == "get_secret_code_tool"
|
|
|
|
assert len(messages[3].tool_calls) == 3
|
|
assert messages[3].tool_calls[0]["name"] == "get_secret_code_tool"
|
|
assert "hello world" in messages[3].tool_calls[0]["arguments"]
|
|
approve_tool_call_id = messages[3].tool_calls[0]["tool_call_id"]
|
|
assert messages[3].tool_calls[1]["name"] == "get_secret_code_tool"
|
|
assert "hello letta" in messages[3].tool_calls[1]["arguments"]
|
|
deny_tool_call_id = messages[3].tool_calls[1]["tool_call_id"]
|
|
assert messages[3].tool_calls[2]["name"] == "get_secret_code_tool"
|
|
assert "hello test" in messages[3].tool_calls[2]["arguments"]
|
|
client_side_tool_call_id = messages[3].tool_calls[2]["tool_call_id"]
|
|
|
|
# ensure context is not bricked
|
|
client.agents.context.retrieve(agent_id=agent.id)
|
|
|
|
response = client.agents.messages.create(
|
|
agent_id=agent.id,
|
|
messages=[
|
|
ApprovalCreate(
|
|
approve=False, # legacy (passing incorrect value to ensure it is overridden)
|
|
approval_request_id=FAKE_REQUEST_ID, # legacy (passing incorrect value to ensure it is overridden)
|
|
approvals=[
|
|
{
|
|
"type": "approval",
|
|
"approve": True,
|
|
"tool_call_id": approve_tool_call_id,
|
|
},
|
|
{
|
|
"type": "approval",
|
|
"approve": False,
|
|
"tool_call_id": deny_tool_call_id,
|
|
},
|
|
{
|
|
"type": "tool",
|
|
"tool_call_id": client_side_tool_call_id,
|
|
"tool_return": SECRET_CODE,
|
|
"status": "success",
|
|
},
|
|
],
|
|
),
|
|
],
|
|
)
|
|
|
|
messages = response.messages
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 1 or len(messages) == 3 or len(messages) == 4
|
|
assert messages[0].message_type == "tool_return_message"
|
|
assert len(messages[0].tool_returns) == 4
|
|
for tool_return in messages[0].tool_returns:
|
|
if tool_return["tool_call_id"] == approve_tool_call_id:
|
|
assert tool_return["status"] == "success"
|
|
elif tool_return["tool_call_id"] == deny_tool_call_id:
|
|
assert tool_return["status"] == "error"
|
|
elif tool_return["tool_call_id"] == client_side_tool_call_id:
|
|
assert tool_return["status"] == "success"
|
|
assert tool_return["tool_return"] == SECRET_CODE
|
|
else:
|
|
assert tool_return["tool_call_id"] == dice_tool_call_id
|
|
assert tool_return["status"] == "success"
|
|
if len(messages) == 3:
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
elif len(messages) == 4:
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "tool_call_message"
|
|
assert messages[3].message_type == "tool_return_message"
|
|
|
|
# ensure context is not bricked
|
|
client.agents.context.retrieve(agent_id=agent.id)
|
|
|
|
messages = client.agents.messages.list(agent_id=agent.id, after=last_message_cursor)
|
|
assert len(messages) > 6
|
|
assert messages[0].message_type == "user_message"
|
|
assert messages[1].message_type == "reasoning_message"
|
|
assert messages[2].message_type == "assistant_message"
|
|
assert messages[3].message_type == "tool_call_message"
|
|
assert messages[4].message_type == "approval_request_message"
|
|
assert messages[5].message_type == "approval_response_message"
|
|
assert messages[6].message_type == "tool_return_message"
|
|
|
|
response = client.agents.messages.create_stream(
|
|
agent_id=agent.id,
|
|
messages=USER_MESSAGE_FOLLOW_UP,
|
|
stream_tokens=True,
|
|
)
|
|
|
|
messages = accumulate_chunks(response)
|
|
|
|
assert messages is not None
|
|
assert len(messages) == 4
|
|
assert messages[0].message_type == "reasoning_message"
|
|
assert messages[1].message_type == "assistant_message"
|
|
assert messages[2].message_type == "stop_reason"
|
|
assert messages[3].message_type == "usage_statistics"
|