546 lines
18 KiB
Python
546 lines
18 KiB
Python
import asyncio
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import time
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from typing import Any, cast
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import pytest
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from mcp import Tool as MCPTool
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from openai._models import construct_type
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from openai.types.responses import (
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ResponseCompletedEvent,
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ResponseContentPartAddedEvent,
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ResponseContentPartDoneEvent,
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ResponseCreatedEvent,
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ResponseFunctionCallArgumentsDeltaEvent,
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ResponseFunctionCallArgumentsDoneEvent,
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ResponseInProgressEvent,
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ResponseOutputItem,
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ResponseOutputItemAddedEvent,
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ResponseOutputItemDoneEvent,
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ResponseReasoningSummaryPartAddedEvent,
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ResponseReasoningSummaryPartDoneEvent,
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ResponseReasoningSummaryTextDeltaEvent,
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ResponseReasoningSummaryTextDoneEvent,
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ResponseTextDeltaEvent,
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ResponseTextDoneEvent,
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ResponseToolSearchCall,
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ResponseToolSearchOutputItem,
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)
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from openai.types.responses.response_output_item import (
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McpApprovalRequest,
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McpListTools,
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McpListToolsTool,
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)
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from openai.types.responses.response_reasoning_item import ResponseReasoningItem, Summary
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from agents import Agent, HandoffCallItem, Runner, function_tool
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from agents.extensions.handoff_filters import remove_all_tools
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from agents.handoffs import handoff
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from agents.items import (
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CompactionItem,
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MCPApprovalRequestItem,
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MCPApprovalResponseItem,
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MCPListToolsItem,
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MessageOutputItem,
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ReasoningItem,
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RunItem,
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ToolApprovalItem,
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ToolCallItem,
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ToolCallOutputItem,
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ToolSearchCallItem,
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ToolSearchOutputItem,
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)
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from agents.run_internal.streaming import stream_step_items_to_queue, stream_step_result_to_queue
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from .fake_model import FakeModel
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from .mcp.helpers import FakeMCPServer
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from .test_responses import get_function_tool_call, get_handoff_tool_call, get_text_message
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def get_reasoning_item() -> ResponseReasoningItem:
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return ResponseReasoningItem(
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id="rid", type="reasoning", summary=[Summary(text="thinking", type="summary_text")]
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)
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def _make_hosted_mcp_list_tools(server_label: str, tool_name: str) -> McpListTools:
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return McpListTools(
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id=f"list_{server_label}",
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server_label=server_label,
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tools=[
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McpListToolsTool(
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name=tool_name,
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input_schema={},
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description="Search the docs.",
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annotations={"title": "Search Docs"},
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)
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],
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type="mcp_list_tools",
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)
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@function_tool
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async def foo() -> str:
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await asyncio.sleep(0)
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return "success!"
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@pytest.mark.asyncio
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async def test_stream_events_main():
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model = FakeModel()
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agent = Agent(
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name="Joker",
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model=model,
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tools=[foo],
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)
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model.add_multiple_turn_outputs(
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[
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# First turn: a message and tool call
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[
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get_text_message("a_message"),
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get_function_tool_call("foo", ""),
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],
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# Second turn: text message
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[get_text_message("done")],
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]
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)
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result = Runner.run_streamed(
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agent,
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input="Hello",
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)
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tool_call_start_time = -1
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tool_call_end_time = -1
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async for event in result.stream_events():
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if event.type == "run_item_stream_event":
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if event.item.type == "tool_call_item":
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tool_call_start_time = time.time_ns()
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elif event.item.type == "tool_call_output_item":
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tool_call_end_time = time.time_ns()
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assert tool_call_start_time > 0, "tool_call_item was not observed"
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assert tool_call_end_time > 0, "tool_call_output_item was not observed"
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assert tool_call_start_time < tool_call_end_time, "Tool call ended before or equals it started?"
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@pytest.mark.asyncio
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async def test_stream_events_tool_called_includes_local_mcp_title() -> None:
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model = FakeModel()
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server = FakeMCPServer(
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tools=[
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MCPTool(
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name="search_docs",
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inputSchema={},
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description=None,
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title="Search Docs",
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)
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]
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)
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agent = Agent(name="MCPAgent", model=model, mcp_servers=[server])
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model.add_multiple_turn_outputs(
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[
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[get_function_tool_call("search_docs", "{}")],
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[get_text_message("done")],
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]
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)
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result = Runner.run_streamed(agent, input="Hello")
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seen_tool_item: ToolCallItem | None = None
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async for event in result.stream_events():
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if (
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event.type == "run_item_stream_event"
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and isinstance(event.item, ToolCallItem)
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and seen_tool_item is None
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):
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seen_tool_item = event.item
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assert seen_tool_item is not None
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assert seen_tool_item.description == "Search Docs"
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assert seen_tool_item.title == "Search Docs"
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def test_stream_step_items_to_queue_emits_helper_events_and_skips_approvals(
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caplog: pytest.LogCaptureFixture,
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) -> None:
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agent = Agent(name="StreamHelper")
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queue: asyncio.Queue[Any] = asyncio.Queue()
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request_item = McpApprovalRequest(
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id="mcp-approval-1",
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type="mcp_approval_request",
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server_label="test-mcp-server",
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arguments="{}",
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name="search_docs",
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)
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items: list[RunItem] = [
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ToolSearchCallItem(
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agent=agent,
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raw_item=ResponseToolSearchCall(
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id="tsc_123",
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type="tool_search_call",
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arguments={"query": "docs"},
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execution="client",
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status="completed",
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),
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),
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ToolSearchOutputItem(
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agent=agent,
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raw_item=ResponseToolSearchOutputItem(
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id="tso_123",
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type="tool_search_output",
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execution="client",
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status="completed",
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tools=[],
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),
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),
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MCPApprovalRequestItem(agent=agent, raw_item=request_item),
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MCPApprovalResponseItem(
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agent=agent,
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raw_item=cast(
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Any,
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{
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"type": "mcp_approval_response",
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"approval_request_id": "mcp-approval-1",
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"approve": True,
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},
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),
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),
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MCPListToolsItem(
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agent=agent,
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raw_item=_make_hosted_mcp_list_tools("test-mcp-server", "search_docs"),
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),
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ReasoningItem(agent=agent, raw_item=get_reasoning_item()),
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ToolApprovalItem(
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agent=agent,
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raw_item={"type": "function_call", "call_id": "call-1", "name": "tool"},
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),
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cast(Any, object()),
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]
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with caplog.at_level("WARNING", logger="openai.agents"):
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stream_step_items_to_queue(items, queue)
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names = []
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while not queue.empty():
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event = queue.get_nowait()
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names.append(event.name)
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assert names == [
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"tool_search_called",
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"tool_search_output_created",
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"mcp_approval_requested",
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"mcp_approval_response",
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"mcp_list_tools",
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"reasoning_item_created",
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]
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assert "Unexpected item type" in caplog.text
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def test_stream_step_items_to_queue_skips_compaction_items_silently(
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caplog: pytest.LogCaptureFixture,
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) -> None:
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"""CompactionItem is a session-bookkeeping RunItem with no public stream
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event name; it must be skipped silently rather than logged as unexpected."""
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agent = Agent(name="StreamHelper")
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queue: asyncio.Queue[Any] = asyncio.Queue()
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compaction_item = CompactionItem(
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agent=agent,
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raw_item=cast(Any, {"type": "compaction", "summary": "compacted"}),
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)
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with caplog.at_level("WARNING", logger="openai.agents"):
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stream_step_items_to_queue([compaction_item], queue)
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assert queue.empty()
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assert "Unexpected item type" not in caplog.text
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def test_stream_step_result_to_queue_uses_new_step_items() -> None:
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agent = Agent(name="StreamHelper")
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queue: asyncio.Queue[Any] = asyncio.Queue()
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tool_search_item = ToolSearchCallItem(
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agent=agent,
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raw_item={
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"type": "tool_search_call",
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"queries": [{"search_term": "docs"}],
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},
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)
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step_result = cast(Any, type("StepResult", (), {"new_step_items": [tool_search_item]})())
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stream_step_result_to_queue(step_result, queue)
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event = queue.get_nowait()
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assert event.name == "tool_search_called"
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@pytest.mark.asyncio
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async def test_stream_events_main_with_handoff():
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@function_tool
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async def foo(args: str) -> str:
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return f"foo_result_{args}"
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english_agent = Agent(
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name="EnglishAgent",
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instructions="You only speak English.",
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model=FakeModel(),
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)
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model = FakeModel()
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model.add_multiple_turn_outputs(
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[
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[
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get_text_message("Hello"),
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get_function_tool_call("foo", '{"args": "arg1"}'),
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get_handoff_tool_call(english_agent),
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],
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[get_text_message("Done")],
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]
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)
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triage_agent = Agent(
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name="TriageAgent",
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instructions="Handoff to the appropriate agent based on the language of the request.",
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handoffs=[
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handoff(english_agent, input_filter=remove_all_tools),
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],
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tools=[foo],
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model=model,
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)
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result = Runner.run_streamed(
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triage_agent,
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input="Start",
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)
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handoff_requested_seen = False
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agent_switched_to_english = False
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async for event in result.stream_events():
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if event.type == "run_item_stream_event":
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if isinstance(event.item, HandoffCallItem):
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handoff_requested_seen = True
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elif event.type == "agent_updated_stream_event":
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if hasattr(event, "new_agent") and event.new_agent.name == "EnglishAgent":
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agent_switched_to_english = True
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assert handoff_requested_seen, "handoff_requested event not observed"
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assert agent_switched_to_english, "Agent did not switch to EnglishAgent"
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@pytest.mark.asyncio
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async def test_complete_streaming_events():
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"""Verify all streaming event types are emitted in correct order.
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Tests the complete event sequence including:
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- Reasoning items with summary events
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- Function call with arguments delta/done events
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- Message output with content_part and text delta/done events
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"""
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model = FakeModel()
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agent = Agent(
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name="TestAgent",
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model=model,
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tools=[foo],
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)
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model.add_multiple_turn_outputs(
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[
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[
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get_reasoning_item(),
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get_function_tool_call("foo", '{"arg": "value"}'),
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],
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[get_text_message("Final response")],
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]
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)
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result = Runner.run_streamed(agent, input="Hello")
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events = []
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async for event in result.stream_events():
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events.append(event)
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assert len(events) == 27, f"Expected 27 events but got {len(events)}"
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# Event 0: agent_updated_stream_event
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assert events[0].type == "agent_updated_stream_event"
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assert events[0].new_agent.name == "TestAgent"
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# Event 1: ResponseCreatedEvent (first turn started)
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assert events[1].type == "raw_response_event"
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assert isinstance(events[1].data, ResponseCreatedEvent)
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# Event 2: ResponseInProgressEvent
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assert events[2].type == "raw_response_event"
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assert isinstance(events[2].data, ResponseInProgressEvent)
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# Event 3: ResponseOutputItemAddedEvent (reasoning item)
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assert events[3].type == "raw_response_event"
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assert isinstance(events[3].data, ResponseOutputItemAddedEvent)
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# Event 4: ResponseReasoningSummaryPartAddedEvent
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assert events[4].type == "raw_response_event"
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assert isinstance(events[4].data, ResponseReasoningSummaryPartAddedEvent)
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# Event 5: ResponseReasoningSummaryTextDeltaEvent
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assert events[5].type == "raw_response_event"
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assert isinstance(events[5].data, ResponseReasoningSummaryTextDeltaEvent)
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# Event 6: ResponseReasoningSummaryTextDoneEvent
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assert events[6].type == "raw_response_event"
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assert isinstance(events[6].data, ResponseReasoningSummaryTextDoneEvent)
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# Event 7: ResponseReasoningSummaryPartDoneEvent
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assert events[7].type == "raw_response_event"
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assert isinstance(events[7].data, ResponseReasoningSummaryPartDoneEvent)
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# Event 8: ResponseOutputItemDoneEvent (reasoning item)
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assert events[8].type == "raw_response_event"
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assert isinstance(events[8].data, ResponseOutputItemDoneEvent)
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# Event 9: ReasoningItem run_item_stream_event
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assert events[9].type == "run_item_stream_event"
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assert events[9].name == "reasoning_item_created"
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assert isinstance(events[9].item, ReasoningItem)
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# Event 10: ResponseOutputItemAddedEvent (function call)
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assert events[10].type == "raw_response_event"
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assert isinstance(events[10].data, ResponseOutputItemAddedEvent)
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# Event 11: ResponseFunctionCallArgumentsDeltaEvent
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assert events[11].type == "raw_response_event"
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assert isinstance(events[11].data, ResponseFunctionCallArgumentsDeltaEvent)
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# Event 12: ResponseFunctionCallArgumentsDoneEvent
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assert events[12].type == "raw_response_event"
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assert isinstance(events[12].data, ResponseFunctionCallArgumentsDoneEvent)
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# Event 13: ResponseOutputItemDoneEvent (function call)
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assert events[13].type == "raw_response_event"
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assert isinstance(events[13].data, ResponseOutputItemDoneEvent)
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# Event 14: ToolCallItem run_item_stream_event
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assert events[14].type == "run_item_stream_event"
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assert events[14].name == "tool_called"
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assert isinstance(events[14].item, ToolCallItem)
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# Event 15: ResponseCompletedEvent (first turn ended)
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assert events[15].type == "raw_response_event"
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assert isinstance(events[15].data, ResponseCompletedEvent)
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# Event 16: ToolCallOutputItem run_item_stream_event
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assert events[16].type == "run_item_stream_event"
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assert events[16].name == "tool_output"
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assert isinstance(events[16].item, ToolCallOutputItem)
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# Event 17: ResponseCreatedEvent (second turn started)
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assert events[17].type == "raw_response_event"
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assert isinstance(events[17].data, ResponseCreatedEvent)
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# Event 18: ResponseInProgressEvent
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assert events[18].type == "raw_response_event"
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assert isinstance(events[18].data, ResponseInProgressEvent)
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# Event 19: ResponseOutputItemAddedEvent
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assert events[19].type == "raw_response_event"
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assert isinstance(events[19].data, ResponseOutputItemAddedEvent)
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# Event 20: ResponseContentPartAddedEvent
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assert events[20].type == "raw_response_event"
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assert isinstance(events[20].data, ResponseContentPartAddedEvent)
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# Event 21: ResponseTextDeltaEvent
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assert events[21].type == "raw_response_event"
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assert isinstance(events[21].data, ResponseTextDeltaEvent)
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# Event 22: ResponseTextDoneEvent
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assert events[22].type == "raw_response_event"
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assert isinstance(events[22].data, ResponseTextDoneEvent)
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# Event 23: ResponseContentPartDoneEvent
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assert events[23].type == "raw_response_event"
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assert isinstance(events[23].data, ResponseContentPartDoneEvent)
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# Event 24: ResponseOutputItemDoneEvent
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assert events[24].type == "raw_response_event"
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assert isinstance(events[24].data, ResponseOutputItemDoneEvent)
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# Event 25: ResponseCompletedEvent (second turn ended)
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assert events[25].type == "raw_response_event"
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assert isinstance(events[25].data, ResponseCompletedEvent)
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# Event 26: MessageOutputItem run_item_stream_event
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assert events[26].type == "run_item_stream_event"
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assert events[26].name == "message_output_created"
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assert isinstance(events[26].item, MessageOutputItem)
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|
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@pytest.mark.asyncio
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async def test_stream_events_emit_tool_search_items() -> None:
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model = FakeModel()
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agent = Agent(name="ToolSearchAgent", model=model)
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tool_search_call = cast(
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ResponseOutputItem,
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construct_type(
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type_=ResponseOutputItem,
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value={
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"id": "tsc_stream",
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"type": "tool_search_call",
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"arguments": {"paths": ["crm"], "query": "orders"},
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"execution": "server",
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"status": "completed",
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},
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),
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)
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tool_search_output = cast(
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ResponseOutputItem,
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construct_type(
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type_=ResponseOutputItem,
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value={
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"id": "tso_stream",
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"type": "tool_search_output",
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"execution": "server",
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"status": "completed",
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"tools": [
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{
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"type": "function",
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"name": "list_open_orders",
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"description": "List open orders for a customer.",
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"parameters": {
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"type": "object",
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"properties": {
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"customer_id": {
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"type": "string",
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}
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},
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"required": ["customer_id"],
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},
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"defer_loading": True,
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}
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],
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},
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),
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)
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model.add_multiple_turn_outputs(
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[[tool_search_call, tool_search_output, get_text_message("Done")]]
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)
|
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result = Runner.run_streamed(agent, input="Search for CRM order tools")
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|
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seen_events: list[tuple[str, object]] = []
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async for event in result.stream_events():
|
|
if event.type != "run_item_stream_event":
|
|
continue
|
|
seen_events.append((event.name, event.item))
|
|
|
|
assert any(
|
|
name == "tool_search_called" and isinstance(item, ToolSearchCallItem)
|
|
for name, item in seen_events
|
|
)
|
|
assert any(
|
|
name == "tool_search_output_created" and isinstance(item, ToolSearchOutputItem)
|
|
for name, item in seen_events
|
|
)
|