mirror of
https://github.com/hwchase17/langchain.git
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core[patch]: remove requests (#19891)
Removes required usage of `requests` from `langchain-core`, all of which has been deprecated. - removes Tracer V1 implementations - removes old `try_load_from_hub` github-based hub implementations Removal done in a way where imports will still succeed, and usage will fail with a `RuntimeError`.
This commit is contained in:
Erick Friis
GitHub
@@ -1,562 +0,0 @@
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"""Test Tracer classes."""
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from __future__ import annotations
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from datetime import datetime, timezone
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from typing import Any, 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_core.callbacks import CallbackManager
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from langchain_core.messages import HumanMessage
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from langchain_core.outputs import LLMResult
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from langchain_core.tracers.base import BaseTracer, TracerException
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from langchain_core.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_core.tracers.schemas import Run, TracerSessionV1Base
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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.now(timezone.utc)
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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,
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name=name or "default",
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start_time=datetime.now(timezone.utc),
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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.now(timezone.utc)
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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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def _compare_run_with_error(run: Any, expected_run: Any) -> None:
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received = run.dict()
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received_err = received.pop("error")
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expected = expected_run.dict()
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expected_err = expected.pop("error")
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assert received == expected
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assert expected_err in received_err
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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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tracer = FakeTracer()
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tracer.new_session()
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manager = CallbackManager(handlers=[tracer])
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run_managers = manager.on_chat_model_start(
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serialized=SERIALIZED_CHAT, messages=[[HumanMessage(content="")]]
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)
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compare_run = LLMRun(
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uuid=str(run_managers[0].run_id),
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parent_uuid=None,
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start_time=datetime.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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=["Human: "],
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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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for run_manager in run_managers:
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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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_compare_run_with_error(tracer.runs[0], 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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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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_compare_run_with_error(tracer.runs[0], 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.now(timezone.utc),
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end_time=datetime.now(timezone.utc),
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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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_compare_run_with_error(tracer.runs[0], compare_run)
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@pytest.fixture
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def sample_tracer_session_v1() -> TracerSessionV1:
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return TracerSessionV1(id=2, name="Sample session")
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@freeze_time("2023-01-01")
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def test_convert_run(
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lang_chain_tracer_v1: LangChainTracerV1,
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sample_tracer_session_v1: TracerSessionV1,
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) -> None:
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"""Test converting a run to a V1 run."""
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llm_run = Run( # type: ignore[call-arg]
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id="57a08cc4-73d2-4236-8370-549099d07fad", # type: ignore[arg-type]
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name="llm_run",
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execution_order=1,
|
||||
child_execution_order=1,
|
||||
start_time=datetime.now(timezone.utc),
|
||||
end_time=datetime.now(timezone.utc),
|
||||
session_id=TEST_SESSION_ID,
|
||||
inputs={"prompts": []},
|
||||
outputs=LLMResult(generations=[[]]).dict(),
|
||||
serialized={},
|
||||
extra={},
|
||||
run_type="llm",
|
||||
)
|
||||
chain_run = Run(
|
||||
id="57a08cc4-73d2-4236-8371-549099d07fad", # type: ignore[arg-type]
|
||||
name="chain_run",
|
||||
execution_order=1,
|
||||
start_time=datetime.now(timezone.utc),
|
||||
end_time=datetime.now(timezone.utc),
|
||||
child_execution_order=1,
|
||||
serialized={},
|
||||
inputs={},
|
||||
outputs={},
|
||||
child_runs=[llm_run],
|
||||
extra={},
|
||||
run_type="chain",
|
||||
)
|
||||
|
||||
tool_run = Run(
|
||||
id="57a08cc4-73d2-4236-8372-549099d07fad", # type: ignore[arg-type]
|
||||
name="tool_run",
|
||||
execution_order=1,
|
||||
child_execution_order=1,
|
||||
inputs={"input": "test"},
|
||||
start_time=datetime.now(timezone.utc),
|
||||
end_time=datetime.now(timezone.utc),
|
||||
outputs=None,
|
||||
serialized={},
|
||||
child_runs=[],
|
||||
extra={},
|
||||
run_type="tool",
|
||||
)
|
||||
|
||||
expected_llm_run = LLMRun( # type: ignore[call-arg]
|
||||
uuid="57a08cc4-73d2-4236-8370-549099d07fad",
|
||||
name="llm_run",
|
||||
execution_order=1,
|
||||
child_execution_order=1,
|
||||
start_time=datetime.now(timezone.utc),
|
||||
end_time=datetime.now(timezone.utc),
|
||||
session_id=2,
|
||||
prompts=[],
|
||||
response=LLMResult(generations=[[]]),
|
||||
serialized={},
|
||||
extra={},
|
||||
)
|
||||
|
||||
expected_chain_run = ChainRun( # type: ignore[call-arg]
|
||||
uuid="57a08cc4-73d2-4236-8371-549099d07fad",
|
||||
name="chain_run",
|
||||
execution_order=1,
|
||||
child_execution_order=1,
|
||||
start_time=datetime.now(timezone.utc),
|
||||
end_time=datetime.now(timezone.utc),
|
||||
session_id=2,
|
||||
serialized={},
|
||||
inputs={},
|
||||
outputs={},
|
||||
child_llm_runs=[expected_llm_run],
|
||||
child_chain_runs=[],
|
||||
child_tool_runs=[],
|
||||
extra={},
|
||||
)
|
||||
expected_tool_run = ToolRun( # type: ignore[call-arg]
|
||||
uuid="57a08cc4-73d2-4236-8372-549099d07fad",
|
||||
name="tool_run",
|
||||
execution_order=1,
|
||||
child_execution_order=1,
|
||||
session_id=2,
|
||||
start_time=datetime.now(timezone.utc),
|
||||
end_time=datetime.now(timezone.utc),
|
||||
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
|
||||
@@ -1,106 +0,0 @@
|
||||
"""Test the functionality of loading from langchain-hub."""
|
||||
|
||||
import json
|
||||
import re
|
||||
from pathlib import Path
|
||||
from typing import Iterable
|
||||
from unittest.mock import Mock
|
||||
from urllib.parse import urljoin
|
||||
|
||||
import pytest
|
||||
import responses
|
||||
|
||||
from langchain_core.utils.loading import DEFAULT_REF, URL_BASE, try_load_from_hub
|
||||
|
||||
|
||||
@pytest.fixture(autouse=True)
|
||||
def mocked_responses() -> Iterable[responses.RequestsMock]:
|
||||
"""Fixture mocking requests.get."""
|
||||
with responses.RequestsMock() as rsps:
|
||||
yield rsps
|
||||
|
||||
|
||||
def test_non_hub_path() -> None:
|
||||
"""Test that a non-hub path returns None."""
|
||||
path = "chains/some_path"
|
||||
loader = Mock()
|
||||
valid_suffixes = {"suffix"}
|
||||
result = try_load_from_hub(path, loader, "chains", valid_suffixes)
|
||||
|
||||
assert result is None
|
||||
loader.assert_not_called()
|
||||
|
||||
|
||||
def test_invalid_prefix() -> None:
|
||||
"""Test that a hub path with an invalid prefix returns None."""
|
||||
path = "lc://agents/some_path"
|
||||
loader = Mock()
|
||||
valid_suffixes = {"suffix"}
|
||||
result = try_load_from_hub(path, loader, "chains", valid_suffixes)
|
||||
|
||||
assert result is None
|
||||
loader.assert_not_called()
|
||||
|
||||
|
||||
def test_invalid_suffix() -> None:
|
||||
"""Test that a hub path with an invalid suffix raises an error."""
|
||||
path = "lc://chains/path.invalid"
|
||||
loader = Mock()
|
||||
valid_suffixes = {"json"}
|
||||
|
||||
with pytest.raises(
|
||||
ValueError, match=f"Unsupported file type, must be one of {valid_suffixes}."
|
||||
):
|
||||
try_load_from_hub(path, loader, "chains", valid_suffixes)
|
||||
|
||||
loader.assert_not_called()
|
||||
|
||||
|
||||
@pytest.mark.parametrize("ref", [None, "v0.3"])
|
||||
def test_success(mocked_responses: responses.RequestsMock, ref: str) -> None:
|
||||
"""Test that a valid hub path is loaded correctly with and without a ref."""
|
||||
path = "chains/path/chain.json"
|
||||
lc_path_prefix = f"lc{('@' + ref) if ref else ''}://"
|
||||
valid_suffixes = {"json"}
|
||||
body = json.dumps({"foo": "bar"})
|
||||
ref = ref or DEFAULT_REF
|
||||
|
||||
file_contents = None
|
||||
|
||||
def loader(file_path: str) -> None:
|
||||
nonlocal file_contents
|
||||
assert file_contents is None
|
||||
file_contents = Path(file_path).read_text()
|
||||
|
||||
mocked_responses.get( # type: ignore
|
||||
urljoin(URL_BASE.format(ref=ref), path),
|
||||
body=body,
|
||||
status=200,
|
||||
content_type="application/json",
|
||||
)
|
||||
|
||||
try_load_from_hub(f"{lc_path_prefix}{path}", loader, "chains", valid_suffixes)
|
||||
assert file_contents == body
|
||||
|
||||
|
||||
def test_failed_request(mocked_responses: responses.RequestsMock) -> None:
|
||||
"""Test that a failed request raises an error."""
|
||||
path = "chains/path/chain.json"
|
||||
loader = Mock()
|
||||
|
||||
mocked_responses.get( # type: ignore
|
||||
urljoin(URL_BASE.format(ref=DEFAULT_REF), path), status=500
|
||||
)
|
||||
|
||||
with pytest.raises(ValueError, match=re.compile("Could not find file at .*")):
|
||||
try_load_from_hub(f"lc://{path}", loader, "chains", {"json"})
|
||||
loader.assert_not_called()
|
||||
|
||||
|
||||
def test_path_traversal() -> None:
|
||||
"""Test that a path traversal attack is prevented."""
|
||||
path = "lc://chains/../../../../../../../../../it.json"
|
||||
loader = Mock()
|
||||
|
||||
with pytest.raises(ValueError):
|
||||
try_load_from_hub(path, loader, "chains", {"json"})
|
||||
Reference in New Issue
Block a user