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1e04845b02
* Fix initializing agent from snapshot. Refactoring tests * Fixing tests * Add integration test * Add reno * linting * Update releasenotes/notes/fix-openai-agent-snapshot-init-1ca26789564a53fe.yaml Co-authored-by: David S. Batista <dsbatista@gmail.com> --------- Co-authored-by: David S. Batista <dsbatista@gmail.com>
618 lines
27 KiB
Python
618 lines
27 KiB
Python
# SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
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#
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# SPDX-License-Identifier: Apache-2.0
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import os
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from pathlib import Path
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from typing import Any, Optional, Union
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import pytest
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from haystack import component
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from haystack.components.agents import Agent
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from haystack.components.generators.chat import OpenAIChatGenerator
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from haystack.core.errors import BreakpointException
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from haystack.core.pipeline.breakpoint import load_pipeline_snapshot
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from haystack.dataclasses import ChatMessage, ToolCall
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from haystack.dataclasses.breakpoints import AgentBreakpoint, AgentSnapshot, Breakpoint, ToolBreakpoint
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from haystack.tools import Tool, Toolset
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def weather_function(location):
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weather_info = {
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"Berlin": {"weather": "mostly sunny", "temperature": 7, "unit": "celsius"},
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"Paris": {"weather": "mostly cloudy", "temperature": 8, "unit": "celsius"},
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"Rome": {"weather": "sunny", "temperature": 14, "unit": "celsius"},
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}
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return weather_info.get(location, {"weather": "unknown", "temperature": 0, "unit": "celsius"})
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@pytest.fixture
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def weather_tool():
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return Tool(
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name="weather_tool",
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description="Provides weather information for a given location.",
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parameters={"type": "object", "properties": {"location": {"type": "string"}}, "required": ["location"]},
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function=weather_function,
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)
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@component
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class MockChatGenerator:
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def __init__(self):
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self._counter = 0
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def to_dict(self) -> dict[str, Any]:
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return {"type": "MockChatGenerator", "data": {}}
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@classmethod
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def from_dict(cls, data: dict[str, Any]) -> "MockChatGenerator":
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return cls()
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@component.output_types(replies=list[ChatMessage])
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def run(
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self, messages: list[ChatMessage], tools: Optional[Union[list[Tool], Toolset]] = None, **kwargs
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) -> dict[str, Any]:
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if self._counter == 0:
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self._counter += 1
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return {
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"replies": [
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ChatMessage.from_assistant(
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"I'll help you check the weather.",
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tool_calls=[ToolCall(tool_name="weather_tool", arguments={"location": "Berlin"})],
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)
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]
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}
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else:
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return {"replies": [ChatMessage.from_assistant("The weather in Berlin is sunny.")]}
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@component.output_types(replies=list[ChatMessage])
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async def run_async(
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self, messages: list[ChatMessage], tools: Optional[Union[list[Tool], Toolset]] = None, **kwargs
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) -> dict[str, Any]:
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if self._counter == 0:
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self._counter += 1
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return {
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"replies": [
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ChatMessage.from_assistant(
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"I'll help you check the weather.",
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tool_calls=[ToolCall(tool_name="weather_tool", arguments={"location": "Berlin"})],
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)
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]
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}
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else:
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return {"replies": [ChatMessage.from_assistant("The weather in Berlin is sunny.")]}
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@pytest.fixture
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def agent(weather_tool):
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return Agent(chat_generator=MockChatGenerator(), tools=[weather_tool])
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@pytest.fixture
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def chat_generator_serialization_schema():
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return {
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"type": "object",
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"properties": {
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"messages": {"type": "array", "items": {"type": "haystack.dataclasses.chat_message.ChatMessage"}},
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"tools": {"type": "array", "items": {"type": "haystack.tools.tool.Tool"}},
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},
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}
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class TestAgentBreakpoints:
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def test_run_with_chat_generator_breakpoint(self, agent, chat_generator_serialization_schema):
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agent_breakpoint = AgentBreakpoint(
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break_point=Breakpoint(component_name="chat_generator"), agent_name="test_agent"
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)
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with pytest.raises(BreakpointException) as exc_info:
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agent.run(messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint)
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assert isinstance(exc_info.value, BreakpointException)
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assert exc_info.value.component == "chat_generator"
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assert exc_info.value.inputs == {
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"chat_generator": {
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"serialization_schema": chat_generator_serialization_schema,
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"serialized_data": {
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"messages": [
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{
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"role": "user",
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"meta": {},
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"name": None,
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"content": [{"text": "What's the weather in Berlin?"}],
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}
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],
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"tools": [
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{
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"type": "haystack.tools.tool.Tool",
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"data": {
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"name": "weather_tool",
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"description": "Provides weather information for a given location.",
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"parameters": {
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"type": "object",
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"properties": {"location": {"type": "string"}},
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"required": ["location"],
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},
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"function": "test_agent_breakpoints.weather_function",
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"outputs_to_string": None,
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"inputs_from_state": None,
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"outputs_to_state": None,
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},
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}
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],
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},
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},
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"tool_invoker": {
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"serialization_schema": {
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"type": "object",
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"properties": {
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"messages": {"type": "array", "items": {}},
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"state": {"type": "haystack.components.agents.state.state.State"},
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"tools": {"type": "array", "items": {"type": "haystack.tools.tool.Tool"}},
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},
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},
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"serialized_data": {
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"messages": [],
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"state": {
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"schema": {
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"messages": {
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"type": "list[haystack.dataclasses.chat_message.ChatMessage]",
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"handler": "haystack.components.agents.state.state_utils.merge_lists",
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}
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},
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"data": {
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"serialization_schema": {
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"type": "object",
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"properties": {
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"messages": {
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"type": "array",
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"items": {"type": "haystack.dataclasses.chat_message.ChatMessage"},
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}
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},
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},
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"serialized_data": {
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"messages": [
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{
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"role": "user",
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"meta": {},
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"name": None,
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"content": [{"text": "What's the weather in Berlin?"}],
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}
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]
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},
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},
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},
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"tools": [
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{
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"type": "haystack.tools.tool.Tool",
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"data": {
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"name": "weather_tool",
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"description": "Provides weather information for a given location.",
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"parameters": {
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"type": "object",
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"properties": {"location": {"type": "string"}},
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"required": ["location"],
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},
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"function": "test_agent_breakpoints.weather_function",
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"outputs_to_string": None,
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"inputs_from_state": None,
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"outputs_to_state": None,
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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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assert exc_info.value.results == {
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"schema": {
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"messages": {
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"type": "list[haystack.dataclasses.chat_message.ChatMessage]",
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"handler": "haystack.components.agents.state.state_utils.merge_lists",
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}
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},
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"data": {
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"serialization_schema": {
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"type": "object",
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"properties": {
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"messages": {
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"type": "array",
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"items": {"type": "haystack.dataclasses.chat_message.ChatMessage"},
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}
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},
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},
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"serialized_data": {
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"messages": [
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{
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"role": "user",
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"meta": {},
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"name": None,
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"content": [{"text": "What's the weather in Berlin?"}],
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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_run_with_tool_invoker_breakpoint(self, agent, chat_generator_serialization_schema):
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agent_breakpoint = AgentBreakpoint(
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break_point=ToolBreakpoint(component_name="tool_invoker", tool_name="weather_tool"), agent_name="test_agent"
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)
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with pytest.raises(BreakpointException) as exc_info:
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agent.run(messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint)
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assert isinstance(exc_info.value, BreakpointException)
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assert exc_info.value.component == "tool_invoker"
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assert exc_info.value.inputs == {
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"chat_generator": {
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"serialization_schema": chat_generator_serialization_schema,
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"serialized_data": {
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"messages": [
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{
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"role": "user",
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"meta": {},
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"name": None,
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"content": [{"text": "What's the weather in Berlin?"}],
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}
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],
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"tools": [
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{
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"type": "haystack.tools.tool.Tool",
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"data": {
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"name": "weather_tool",
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"description": "Provides weather information for a given location.",
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"parameters": {
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"type": "object",
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"properties": {"location": {"type": "string"}},
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"required": ["location"],
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},
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"function": "test_agent_breakpoints.weather_function",
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"outputs_to_string": None,
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"inputs_from_state": None,
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"outputs_to_state": None,
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},
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}
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],
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},
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},
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"tool_invoker": {
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"serialization_schema": {
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"type": "object",
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"properties": {
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"messages": {
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"type": "array",
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"items": {"type": "haystack.dataclasses.chat_message.ChatMessage"},
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},
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"state": {"type": "haystack.components.agents.state.state.State"},
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"tools": {"type": "array", "items": {"type": "haystack.tools.tool.Tool"}},
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},
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},
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"serialized_data": {
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"messages": [
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{
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"role": "assistant",
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"meta": {},
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"name": None,
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"content": [
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{"text": "I'll help you check the weather."},
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{
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"tool_call": {
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"tool_name": "weather_tool",
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"arguments": {"location": "Berlin"},
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"id": None,
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}
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},
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],
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}
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],
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"state": {
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"schema": {
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"messages": {
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"type": "list[haystack.dataclasses.chat_message.ChatMessage]",
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"handler": "haystack.components.agents.state.state_utils.merge_lists",
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}
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},
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"data": {
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"serialization_schema": {
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"type": "object",
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"properties": {
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"messages": {
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"type": "array",
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"items": {"type": "haystack.dataclasses.chat_message.ChatMessage"},
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}
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},
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},
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"serialized_data": {
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"messages": [
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{
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"role": "user",
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"meta": {},
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"name": None,
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"content": [{"text": "What's the weather in Berlin?"}],
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},
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{
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"role": "assistant",
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"meta": {},
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"name": None,
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"content": [
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{"text": "I'll help you check the weather."},
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{
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"tool_call": {
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"tool_name": "weather_tool",
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"arguments": {"location": "Berlin"},
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"id": None,
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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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},
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},
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"tools": [
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{
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"type": "haystack.tools.tool.Tool",
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"data": {
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"name": "weather_tool",
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"description": "Provides weather information for a given location.",
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"parameters": {
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"type": "object",
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"properties": {"location": {"type": "string"}},
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"required": ["location"],
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},
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"function": "test_agent_breakpoints.weather_function",
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"outputs_to_string": None,
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"inputs_from_state": None,
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"outputs_to_state": None,
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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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assert exc_info.value.results == {
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"schema": {
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"messages": {
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"type": "list[haystack.dataclasses.chat_message.ChatMessage]",
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"handler": "haystack.components.agents.state.state_utils.merge_lists",
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}
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},
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"data": {
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"serialization_schema": {
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"type": "object",
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"properties": {
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"messages": {
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"type": "array",
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"items": {"type": "haystack.dataclasses.chat_message.ChatMessage"},
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}
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},
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},
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"serialized_data": {
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"messages": [
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{
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"role": "user",
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"meta": {},
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"name": None,
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"content": [{"text": "What's the weather in Berlin?"}],
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},
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{
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"role": "assistant",
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"meta": {},
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"name": None,
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"content": [
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{"text": "I'll help you check the weather."},
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{
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"tool_call": {
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"tool_name": "weather_tool",
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"arguments": {"location": "Berlin"},
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"id": None,
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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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},
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}
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def test_resume_from_chat_generator(self, agent, tmp_path):
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debug_path = str(tmp_path / "debug_snapshots")
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agent_breakpoint = AgentBreakpoint(
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break_point=Breakpoint(component_name="chat_generator", snapshot_file_path=debug_path),
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agent_name="test_agent",
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)
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try:
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agent.run(messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint)
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except BreakpointException:
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pass
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snapshot_files = list(Path(debug_path).glob("test_agent_chat_generator_*.json"))
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assert len(snapshot_files) > 0
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latest_snapshot_file = str(max(snapshot_files, key=os.path.getctime))
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result = agent.run(
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messages=[ChatMessage.from_user("This is actually ignored when resuming from snapshot.")],
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snapshot=load_pipeline_snapshot(latest_snapshot_file).agent_snapshot,
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)
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assert "messages" in result
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assert "last_message" in result
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# There should be 4 messages: user + assistant + tool call result + final assistant message
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assert len(result["messages"]) == 4
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def test_resume_from_tool_invoker(self, agent, tmp_path):
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messages = [ChatMessage.from_user("What's the weather in Berlin?")]
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debug_path = str(tmp_path / "debug_snapshots")
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tool_bp = ToolBreakpoint(component_name="tool_invoker", snapshot_file_path=debug_path)
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agent_breakpoint = AgentBreakpoint(break_point=tool_bp, agent_name="test_agent")
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try:
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agent.run(messages=messages, break_point=agent_breakpoint)
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except BreakpointException:
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pass
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snapshot_files = list(Path(debug_path).glob("test_agent_tool_invoker_*.json"))
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assert len(snapshot_files) > 0
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latest_snapshot_file = str(max(snapshot_files, key=os.path.getctime))
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result = agent.run(
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messages=[ChatMessage.from_user("This is actually ignored when resuming from snapshot.")],
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snapshot=load_pipeline_snapshot(latest_snapshot_file).agent_snapshot,
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)
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assert "messages" in result
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assert "last_message" in result
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assert len(result["messages"]) > 0
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def test_invalid_combination_breakpoint_and_pipeline_snapshot(self, agent):
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messages = [ChatMessage.from_user("What's the weather in Berlin?")]
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tool_bp = ToolBreakpoint(component_name="tool_invoker", tool_name="weather_tool")
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agent_breakpoint = AgentBreakpoint(break_point=tool_bp, agent_name="test_agent")
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with pytest.raises(ValueError, match="break_point and snapshot cannot be provided at the same time"):
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agent.run(
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messages=messages,
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break_point=agent_breakpoint,
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snapshot=AgentSnapshot(component_inputs={}, component_visits={}, break_point=agent_breakpoint),
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)
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def test_breakpoint_with_invalid_component_name(self):
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invalid_bp = Breakpoint(component_name="invalid_breakpoint")
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with pytest.raises(ValueError):
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AgentBreakpoint(break_point=invalid_bp, agent_name="test_agent")
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def test_breakpoint_with_invalid_tool_name(self, agent):
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with pytest.raises(ValueError, match="Tool 'invalid_tool' is not available in the agent's tools"):
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agent_breakpoint = AgentBreakpoint(
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break_point=ToolBreakpoint(component_name="tool_invoker", tool_name="invalid_tool"),
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agent_name="test_agent",
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)
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agent.run(messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint)
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@pytest.mark.skipif(not os.environ.get("OPENAI_API_KEY"), reason="OPENAI_API_KEY not set")
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@pytest.mark.integration
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def test_live_resume_from_tool_invoker(self, tmp_path, weather_tool):
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agent = Agent(chat_generator=OpenAIChatGenerator(model="gpt-4o"), tools=[weather_tool])
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debug_path = str(tmp_path / "debug_snapshots")
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agent_breakpoint = AgentBreakpoint(
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break_point=ToolBreakpoint(component_name="tool_invoker", snapshot_file_path=debug_path),
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agent_name="test_agent",
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)
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try:
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agent.run(messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint)
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except BreakpointException:
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pass
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snapshot_files = list(Path(debug_path).glob("test_agent_tool_invoker_*.json"))
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assert len(snapshot_files) > 0
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latest_snapshot_file = str(max(snapshot_files, key=os.path.getctime))
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result = agent.run(
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messages=[ChatMessage.from_user("This is actually ignored when resuming from snapshot.")],
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snapshot=load_pipeline_snapshot(latest_snapshot_file).agent_snapshot,
|
|
)
|
|
|
|
assert "messages" in result
|
|
assert "last_message" in result
|
|
assert len(result["messages"]) == 4
|
|
assert "berlin" in result["last_message"].text.lower()
|
|
|
|
|
|
class TestAsyncAgentBreakpoints:
|
|
@pytest.mark.asyncio
|
|
async def test_run_async_with_chat_generator_breakpoint(self, agent):
|
|
agent_breakpoint = AgentBreakpoint(
|
|
break_point=Breakpoint(component_name="chat_generator"), agent_name="test_agent"
|
|
)
|
|
with pytest.raises(BreakpointException) as exc_info:
|
|
await agent.run_async(
|
|
messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint
|
|
)
|
|
assert exc_info.value.component == "chat_generator"
|
|
assert "messages" in exc_info.value.inputs["chat_generator"]["serialized_data"]
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_run_async_with_tool_invoker_breakpoint(self, agent):
|
|
agent_breakpoint = AgentBreakpoint(
|
|
break_point=ToolBreakpoint(component_name="tool_invoker", tool_name="weather_tool"), agent_name="test"
|
|
)
|
|
with pytest.raises(BreakpointException) as exc_info:
|
|
await agent.run_async(
|
|
messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint
|
|
)
|
|
|
|
assert exc_info.value.component == "tool_invoker"
|
|
assert "messages" in exc_info.value.inputs["tool_invoker"]["serialized_data"]
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_resume_from_chat_generator_async(self, agent, tmp_path):
|
|
debug_path = str(tmp_path / "debug_snapshots")
|
|
chat_generator_bp = Breakpoint(component_name="chat_generator", snapshot_file_path=debug_path)
|
|
agent_breakpoint = AgentBreakpoint(break_point=chat_generator_bp, agent_name="test_agent")
|
|
|
|
try:
|
|
await agent.run_async(
|
|
messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint
|
|
)
|
|
except BreakpointException:
|
|
pass
|
|
|
|
snapshot_files = list(Path(debug_path).glob("test_agent_chat_generator_*.json"))
|
|
assert len(snapshot_files) > 0
|
|
latest_snapshot_file = str(max(snapshot_files, key=os.path.getctime))
|
|
|
|
result = await agent.run_async(
|
|
messages=[ChatMessage.from_user("This is actually ignored when resuming from snapshot.")],
|
|
snapshot=load_pipeline_snapshot(latest_snapshot_file).agent_snapshot,
|
|
)
|
|
|
|
assert "messages" in result
|
|
assert "last_message" in result
|
|
assert len(result["messages"]) == 4
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_resume_from_tool_invoker_async(self, agent, tmp_path):
|
|
debug_path = str(tmp_path / "debug_snapshots")
|
|
messages = [ChatMessage.from_user("What's the weather in Berlin?")]
|
|
tool_bp = ToolBreakpoint(component_name="tool_invoker", tool_name="weather_tool", snapshot_file_path=debug_path)
|
|
agent_breakpoint = AgentBreakpoint(break_point=tool_bp, agent_name="test_agent")
|
|
|
|
try:
|
|
await agent.run_async(messages=messages, break_point=agent_breakpoint)
|
|
except BreakpointException:
|
|
pass
|
|
|
|
snapshot_files = list(Path(debug_path).glob("test_agent_tool_invoker_*.json"))
|
|
|
|
assert len(snapshot_files) > 0
|
|
latest_snapshot_file = str(max(snapshot_files, key=os.path.getctime))
|
|
|
|
result = await agent.run_async(
|
|
messages=[ChatMessage.from_user("This is actually ignored when resuming from snapshot.")],
|
|
snapshot=load_pipeline_snapshot(latest_snapshot_file).agent_snapshot,
|
|
)
|
|
|
|
assert "messages" in result
|
|
assert "last_message" in result
|
|
assert len(result["messages"]) > 0
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_invalid_combination_breakpoint_and_pipeline_snapshot_async(self, agent):
|
|
tool_bp = ToolBreakpoint(component_name="tool_invoker", visit_count=0, tool_name="weather_tool")
|
|
agent_breakpoint = AgentBreakpoint(break_point=tool_bp, agent_name="test")
|
|
with pytest.raises(ValueError, match="break_point and snapshot cannot be provided at the same time"):
|
|
await agent.run_async(
|
|
messages=[ChatMessage.from_user("What's the weather in Berlin?")],
|
|
break_point=agent_breakpoint,
|
|
snapshot=AgentSnapshot(component_inputs={}, component_visits={}, break_point=agent_breakpoint),
|
|
)
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_breakpoint_with_invalid_tool_name_async(self, agent):
|
|
agent_breakpoint = AgentBreakpoint(
|
|
break_point=ToolBreakpoint(component_name="tool_invoker", tool_name="invalid_tool"), agent_name="test"
|
|
)
|
|
with pytest.raises(ValueError, match="Tool 'invalid_tool' is not available in the agent's tools"):
|
|
await agent.run_async(
|
|
messages=[ChatMessage.from_user("What's the weather in Berlin?")], break_point=agent_breakpoint
|
|
)
|