mirror of
https://github.com/hwchase17/langchain
synced 2024-10-31 15:20:26 +00:00
680 lines
21 KiB
Python
680 lines
21 KiB
Python
"""Test Tracer classes."""
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from __future__ import annotations
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from datetime import datetime
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from typing import List, Optional, Union
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from uuid import uuid4
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import pytest
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from freezegun import freeze_time
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from langchain.callbacks.manager import CallbackManager
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from langchain.callbacks.tracers.base import BaseTracer, TracerException
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from langchain.callbacks.tracers.langchain_v1 import (
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ChainRun,
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LangChainTracerV1,
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LLMRun,
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ToolRun,
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TracerSessionV1,
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)
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from langchain.callbacks.tracers.schemas import Run, RunTypeEnum, TracerSessionV1Base
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from langchain.schema import LLMResult
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TEST_SESSION_ID = 2023
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SERIALIZED = {"id": ["llm"]}
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SERIALIZED_CHAT = {"id": ["chat_model"]}
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def load_session(session_name: str) -> TracerSessionV1:
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"""Load a tracing session."""
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return TracerSessionV1(
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id=TEST_SESSION_ID, name=session_name, start_time=datetime.utcnow()
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)
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def new_session(name: Optional[str] = None) -> TracerSessionV1:
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"""Create a new tracing session."""
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return TracerSessionV1(
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id=TEST_SESSION_ID, name=name or "default", start_time=datetime.utcnow()
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)
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def _persist_session(session: TracerSessionV1Base) -> TracerSessionV1:
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"""Persist a tracing session."""
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return TracerSessionV1(**{**session.dict(), "id": TEST_SESSION_ID})
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def load_default_session() -> TracerSessionV1:
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"""Load a tracing session."""
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return TracerSessionV1(
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id=TEST_SESSION_ID, name="default", start_time=datetime.utcnow()
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)
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@pytest.fixture
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def lang_chain_tracer_v1(monkeypatch: pytest.MonkeyPatch) -> LangChainTracerV1:
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monkeypatch.setenv("LANGCHAIN_TENANT_ID", "test-tenant-id")
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monkeypatch.setenv("LANGCHAIN_ENDPOINT", "http://test-endpoint.com")
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monkeypatch.setenv("LANGCHAIN_API_KEY", "foo")
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tracer = LangChainTracerV1()
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return tracer
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class FakeTracer(BaseTracer):
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"""Fake tracer that records LangChain execution."""
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def __init__(self) -> None:
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"""Initialize the tracer."""
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super().__init__()
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self.runs: List[Union[LLMRun, ChainRun, ToolRun]] = []
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def _persist_run(self, run: Union[Run, LLMRun, ChainRun, ToolRun]) -> None:
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"""Persist a run."""
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if isinstance(run, Run):
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with pytest.MonkeyPatch().context() as m:
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m.setenv("LANGCHAIN_TENANT_ID", "test-tenant-id")
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m.setenv("LANGCHAIN_ENDPOINT", "http://test-endpoint.com")
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m.setenv("LANGCHAIN_API_KEY", "foo")
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tracer = LangChainTracerV1()
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tracer.load_default_session = load_default_session # type: ignore
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run = tracer._convert_to_v1_run(run)
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self.runs.append(run)
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def _persist_session(self, session: TracerSessionV1Base) -> TracerSessionV1:
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"""Persist a tracing session."""
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return _persist_session(session)
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def new_session(self, name: Optional[str] = None) -> TracerSessionV1:
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"""Create a new tracing session."""
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return new_session(name)
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def load_session(self, session_name: str) -> TracerSessionV1:
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"""Load a tracing session."""
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return load_session(session_name)
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def load_default_session(self) -> TracerSessionV1:
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"""Load a tracing session."""
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return load_default_session()
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@freeze_time("2023-01-01")
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def test_tracer_llm_run() -> None:
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"""Test tracer on an LLM run."""
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uuid = uuid4()
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compare_run = LLMRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized=SERIALIZED,
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prompts=[],
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response=LLMResult(generations=[[]]),
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session_id=TEST_SESSION_ID,
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error=None,
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)
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tracer = FakeTracer()
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tracer.new_session()
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tracer.on_llm_start(serialized=SERIALIZED, prompts=[], run_id=uuid)
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=uuid)
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_chat_model_run() -> None:
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"""Test tracer on a Chat Model run."""
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uuid = uuid4()
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compare_run = LLMRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized=SERIALIZED_CHAT,
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prompts=[""],
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response=LLMResult(generations=[[]]),
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session_id=TEST_SESSION_ID,
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error=None,
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)
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tracer = FakeTracer()
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tracer.new_session()
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manager = CallbackManager(handlers=[tracer])
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run_manager = manager.on_chat_model_start(
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serialized=SERIALIZED_CHAT, messages=[[]], run_id=uuid
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)
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run_manager.on_llm_end(response=LLMResult(generations=[[]]))
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_llm_run_errors_no_start() -> None:
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"""Test tracer on an LLM run without a start."""
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tracer = FakeTracer()
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tracer.new_session()
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with pytest.raises(TracerException):
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=uuid4())
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@freeze_time("2023-01-01")
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def test_tracer_multiple_llm_runs() -> None:
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"""Test the tracer with multiple runs."""
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uuid = uuid4()
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compare_run = LLMRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized=SERIALIZED,
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prompts=[],
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response=LLMResult(generations=[[]]),
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session_id=TEST_SESSION_ID,
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error=None,
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)
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tracer = FakeTracer()
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tracer.new_session()
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num_runs = 10
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for _ in range(num_runs):
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tracer.on_llm_start(serialized=SERIALIZED, prompts=[], run_id=uuid)
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=uuid)
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assert tracer.runs == [compare_run] * num_runs
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@freeze_time("2023-01-01")
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def test_tracer_chain_run() -> None:
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"""Test tracer on a Chain run."""
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uuid = uuid4()
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compare_run = ChainRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized={"name": "chain"},
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inputs={},
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outputs={},
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session_id=TEST_SESSION_ID,
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error=None,
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)
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tracer = FakeTracer()
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tracer.new_session()
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tracer.on_chain_start(serialized={"name": "chain"}, inputs={}, run_id=uuid)
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tracer.on_chain_end(outputs={}, run_id=uuid)
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_tool_run() -> None:
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"""Test tracer on a Tool run."""
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uuid = uuid4()
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compare_run = ToolRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized={"name": "tool"},
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tool_input="test",
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output="test",
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action="{'name': 'tool'}",
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session_id=TEST_SESSION_ID,
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error=None,
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)
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tracer = FakeTracer()
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tracer.new_session()
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tracer.on_tool_start(serialized={"name": "tool"}, input_str="test", run_id=uuid)
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tracer.on_tool_end("test", run_id=uuid)
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_nested_run() -> None:
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"""Test tracer on a nested run."""
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tracer = FakeTracer()
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tracer.new_session()
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chain_uuid = uuid4()
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tool_uuid = uuid4()
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llm_uuid1 = uuid4()
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llm_uuid2 = uuid4()
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for _ in range(10):
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tracer.on_chain_start(
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serialized={"name": "chain"}, inputs={}, run_id=chain_uuid
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)
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tracer.on_tool_start(
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serialized={"name": "tool"},
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input_str="test",
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run_id=tool_uuid,
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parent_run_id=chain_uuid,
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)
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tracer.on_llm_start(
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serialized=SERIALIZED,
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prompts=[],
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run_id=llm_uuid1,
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parent_run_id=tool_uuid,
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)
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=llm_uuid1)
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tracer.on_tool_end("test", run_id=tool_uuid)
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tracer.on_llm_start(
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serialized=SERIALIZED,
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prompts=[],
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run_id=llm_uuid2,
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parent_run_id=chain_uuid,
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)
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=llm_uuid2)
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tracer.on_chain_end(outputs={}, run_id=chain_uuid)
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compare_run = ChainRun(
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uuid=str(chain_uuid),
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error=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=4,
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serialized={"name": "chain"},
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inputs={},
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outputs={},
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session_id=TEST_SESSION_ID,
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child_chain_runs=[],
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child_tool_runs=[
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ToolRun(
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uuid=str(tool_uuid),
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parent_uuid=str(chain_uuid),
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=2,
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child_execution_order=3,
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serialized={"name": "tool"},
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tool_input="test",
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output="test",
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action="{'name': 'tool'}",
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session_id=TEST_SESSION_ID,
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error=None,
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child_chain_runs=[],
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child_tool_runs=[],
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child_llm_runs=[
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LLMRun(
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uuid=str(llm_uuid1),
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parent_uuid=str(tool_uuid),
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error=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=3,
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child_execution_order=3,
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serialized=SERIALIZED,
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prompts=[],
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response=LLMResult(generations=[[]]),
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session_id=TEST_SESSION_ID,
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)
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],
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),
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],
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child_llm_runs=[
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LLMRun(
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uuid=str(llm_uuid2),
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parent_uuid=str(chain_uuid),
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error=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=4,
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child_execution_order=4,
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serialized=SERIALIZED,
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prompts=[],
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response=LLMResult(generations=[[]]),
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session_id=TEST_SESSION_ID,
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),
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],
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)
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assert tracer.runs[0] == compare_run
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assert tracer.runs == [compare_run] * 10
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@freeze_time("2023-01-01")
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def test_tracer_llm_run_on_error() -> None:
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"""Test tracer on an LLM run with an error."""
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exception = Exception("test")
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uuid = uuid4()
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compare_run = LLMRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized=SERIALIZED,
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prompts=[],
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response=None,
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session_id=TEST_SESSION_ID,
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error=repr(exception),
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)
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tracer = FakeTracer()
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tracer.new_session()
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tracer.on_llm_start(serialized=SERIALIZED, prompts=[], run_id=uuid)
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tracer.on_llm_error(exception, run_id=uuid)
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_chain_run_on_error() -> None:
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"""Test tracer on a Chain run with an error."""
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exception = Exception("test")
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uuid = uuid4()
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compare_run = ChainRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized={"name": "chain"},
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inputs={},
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outputs=None,
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session_id=TEST_SESSION_ID,
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error=repr(exception),
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)
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tracer = FakeTracer()
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tracer.new_session()
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tracer.on_chain_start(serialized={"name": "chain"}, inputs={}, run_id=uuid)
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tracer.on_chain_error(exception, run_id=uuid)
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_tool_run_on_error() -> None:
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"""Test tracer on a Tool run with an error."""
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exception = Exception("test")
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uuid = uuid4()
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compare_run = ToolRun(
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uuid=str(uuid),
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parent_uuid=None,
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=1,
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serialized={"name": "tool"},
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tool_input="test",
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output=None,
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action="{'name': 'tool'}",
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session_id=TEST_SESSION_ID,
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error=repr(exception),
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)
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tracer = FakeTracer()
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tracer.new_session()
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tracer.on_tool_start(serialized={"name": "tool"}, input_str="test", run_id=uuid)
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tracer.on_tool_error(exception, run_id=uuid)
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assert tracer.runs == [compare_run]
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@freeze_time("2023-01-01")
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def test_tracer_nested_runs_on_error() -> None:
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"""Test tracer on a nested run with an error."""
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exception = Exception("test")
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tracer = FakeTracer()
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tracer.new_session()
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chain_uuid = uuid4()
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tool_uuid = uuid4()
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llm_uuid1 = uuid4()
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llm_uuid2 = uuid4()
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llm_uuid3 = uuid4()
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for _ in range(3):
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tracer.on_chain_start(
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serialized={"name": "chain"}, inputs={}, run_id=chain_uuid
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)
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tracer.on_llm_start(
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serialized=SERIALIZED,
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prompts=[],
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run_id=llm_uuid1,
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parent_run_id=chain_uuid,
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)
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=llm_uuid1)
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tracer.on_llm_start(
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serialized=SERIALIZED,
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prompts=[],
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run_id=llm_uuid2,
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parent_run_id=chain_uuid,
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)
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tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=llm_uuid2)
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tracer.on_tool_start(
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serialized={"name": "tool"},
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input_str="test",
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run_id=tool_uuid,
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parent_run_id=chain_uuid,
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)
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tracer.on_llm_start(
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serialized=SERIALIZED,
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prompts=[],
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run_id=llm_uuid3,
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parent_run_id=tool_uuid,
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)
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tracer.on_llm_error(exception, run_id=llm_uuid3)
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tracer.on_tool_error(exception, run_id=tool_uuid)
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tracer.on_chain_error(exception, run_id=chain_uuid)
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compare_run = ChainRun(
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uuid=str(chain_uuid),
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=1,
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child_execution_order=5,
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serialized={"name": "chain"},
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session_id=TEST_SESSION_ID,
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error=repr(exception),
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inputs={},
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outputs=None,
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child_llm_runs=[
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LLMRun(
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uuid=str(llm_uuid1),
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parent_uuid=str(chain_uuid),
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start_time=datetime.utcnow(),
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end_time=datetime.utcnow(),
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extra={},
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execution_order=2,
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child_execution_order=2,
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serialized=SERIALIZED,
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session_id=TEST_SESSION_ID,
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error=None,
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prompts=[],
|
|
response=LLMResult(generations=[[]], llm_output=None),
|
|
),
|
|
LLMRun(
|
|
uuid=str(llm_uuid2),
|
|
parent_uuid=str(chain_uuid),
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
extra={},
|
|
execution_order=3,
|
|
child_execution_order=3,
|
|
serialized=SERIALIZED,
|
|
session_id=TEST_SESSION_ID,
|
|
error=None,
|
|
prompts=[],
|
|
response=LLMResult(generations=[[]], llm_output=None),
|
|
),
|
|
],
|
|
child_chain_runs=[],
|
|
child_tool_runs=[
|
|
ToolRun(
|
|
uuid=str(tool_uuid),
|
|
parent_uuid=str(chain_uuid),
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
extra={},
|
|
execution_order=4,
|
|
child_execution_order=5,
|
|
serialized={"name": "tool"},
|
|
session_id=TEST_SESSION_ID,
|
|
error=repr(exception),
|
|
tool_input="test",
|
|
output=None,
|
|
action="{'name': 'tool'}",
|
|
child_llm_runs=[
|
|
LLMRun(
|
|
uuid=str(llm_uuid3),
|
|
parent_uuid=str(tool_uuid),
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
extra={},
|
|
execution_order=5,
|
|
child_execution_order=5,
|
|
serialized=SERIALIZED,
|
|
session_id=TEST_SESSION_ID,
|
|
error=repr(exception),
|
|
prompts=[],
|
|
response=None,
|
|
)
|
|
],
|
|
child_chain_runs=[],
|
|
child_tool_runs=[],
|
|
),
|
|
],
|
|
)
|
|
assert tracer.runs == [compare_run] * 3
|
|
|
|
|
|
@pytest.fixture
|
|
def sample_tracer_session_v1() -> TracerSessionV1:
|
|
return TracerSessionV1(id=2, name="Sample session")
|
|
|
|
|
|
@freeze_time("2023-01-01")
|
|
def test_convert_run(
|
|
lang_chain_tracer_v1: LangChainTracerV1,
|
|
sample_tracer_session_v1: TracerSessionV1,
|
|
) -> None:
|
|
"""Test converting a run to a V1 run."""
|
|
llm_run = Run(
|
|
id="57a08cc4-73d2-4236-8370-549099d07fad",
|
|
name="llm_run",
|
|
execution_order=1,
|
|
child_execution_order=1,
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
session_id=TEST_SESSION_ID,
|
|
inputs={"prompts": []},
|
|
outputs=LLMResult(generations=[[]]).dict(),
|
|
serialized={},
|
|
extra={},
|
|
run_type=RunTypeEnum.llm,
|
|
)
|
|
chain_run = Run(
|
|
id="57a08cc4-73d2-4236-8371-549099d07fad",
|
|
name="chain_run",
|
|
execution_order=1,
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
child_execution_order=1,
|
|
serialized={},
|
|
inputs={},
|
|
outputs={},
|
|
child_runs=[llm_run],
|
|
extra={},
|
|
run_type=RunTypeEnum.chain,
|
|
)
|
|
|
|
tool_run = Run(
|
|
id="57a08cc4-73d2-4236-8372-549099d07fad",
|
|
name="tool_run",
|
|
execution_order=1,
|
|
child_execution_order=1,
|
|
inputs={"input": "test"},
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
outputs=None,
|
|
serialized={},
|
|
child_runs=[],
|
|
extra={},
|
|
run_type=RunTypeEnum.tool,
|
|
)
|
|
|
|
expected_llm_run = LLMRun(
|
|
uuid="57a08cc4-73d2-4236-8370-549099d07fad",
|
|
name="llm_run",
|
|
execution_order=1,
|
|
child_execution_order=1,
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
session_id=2,
|
|
prompts=[],
|
|
response=LLMResult(generations=[[]]),
|
|
serialized={},
|
|
extra={},
|
|
)
|
|
|
|
expected_chain_run = ChainRun(
|
|
uuid="57a08cc4-73d2-4236-8371-549099d07fad",
|
|
name="chain_run",
|
|
execution_order=1,
|
|
child_execution_order=1,
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
session_id=2,
|
|
serialized={},
|
|
inputs={},
|
|
outputs={},
|
|
child_llm_runs=[expected_llm_run],
|
|
child_chain_runs=[],
|
|
child_tool_runs=[],
|
|
extra={},
|
|
)
|
|
expected_tool_run = ToolRun(
|
|
uuid="57a08cc4-73d2-4236-8372-549099d07fad",
|
|
name="tool_run",
|
|
execution_order=1,
|
|
child_execution_order=1,
|
|
session_id=2,
|
|
start_time=datetime.utcnow(),
|
|
end_time=datetime.utcnow(),
|
|
tool_input="test",
|
|
action="{}",
|
|
serialized={},
|
|
child_llm_runs=[],
|
|
child_chain_runs=[],
|
|
child_tool_runs=[],
|
|
extra={},
|
|
)
|
|
lang_chain_tracer_v1.session = sample_tracer_session_v1
|
|
converted_llm_run = lang_chain_tracer_v1._convert_to_v1_run(llm_run)
|
|
converted_chain_run = lang_chain_tracer_v1._convert_to_v1_run(chain_run)
|
|
converted_tool_run = lang_chain_tracer_v1._convert_to_v1_run(tool_run)
|
|
|
|
assert isinstance(converted_llm_run, LLMRun)
|
|
assert isinstance(converted_chain_run, ChainRun)
|
|
assert isinstance(converted_tool_run, ToolRun)
|
|
assert converted_llm_run == expected_llm_run
|
|
assert converted_tool_run == expected_tool_run
|
|
assert converted_chain_run == expected_chain_run
|