test_fallbacks.py — langchain Source File

Architecture documentation for test_fallbacks.py, a python file in the langchain codebase. 14 imports, 0 dependents.

File python CoreAbstractions Serialization 14 imports 25 functions 2 classes

Entity Profile

CoreAbstractions→ Serialization→ test_fallbacks.py — langchain Source File

Dependency Diagram

graph LR
  d62d478e_a330_c328_7da4_58e88d780807["test_fallbacks.py"]
  cfe2bde5_180e_e3b0_df2b_55b3ebaca8e7["collections.abc"]
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  8e2034b7_ceb8_963f_29fc_2ea6b50ef9b3["typing"]
  d62d478e_a330_c328_7da4_58e88d780807 --> 8e2034b7_ceb8_963f_29fc_2ea6b50ef9b3
  120e2591_3e15_b895_72b6_cb26195e40a6["pytest"]
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  6e58aaea_f08e_c099_3cc7_f9567bfb1ae7["pydantic"]
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  66d6194f_d8c1_55b6_f522_311fdad57877["syrupy.assertion"]
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  91721f45_4909_e489_8c1f_084f8bd87145["typing_extensions"]
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  f3bc7443_c889_119d_0744_aacc3620d8d2["langchain_core.callbacks"]
  d62d478e_a330_c328_7da4_58e88d780807 --> f3bc7443_c889_119d_0744_aacc3620d8d2
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  36cce5da_d805_04c3_7e86_e1b4dd49b497["langchain_core.load"]
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  d758344f_537f_649e_f467_b9d7442e86df["langchain_core.messages"]
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  ac2a9b92_4484_491e_1b48_ec85e71e1d58["langchain_core.outputs"]
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  e6b4f61e_7b98_6666_3641_26b069517d4a["langchain_core.prompts"]
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  2ceb1686_0f8c_8ae0_36d1_7c0b702fda1c["langchain_core.runnables"]
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  43d88577_548b_2248_b01b_7987bae85dcc["langchain_core.tools"]
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  style d62d478e_a330_c328_7da4_58e88d780807 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

from collections.abc import AsyncIterator, Callable, Iterator, Sequence
from typing import (
    Any,
)

import pytest
from pydantic import BaseModel
from syrupy.assertion import SnapshotAssertion
from typing_extensions import override

from langchain_core.callbacks import CallbackManagerForLLMRun
from langchain_core.language_models import (
    BaseChatModel,
    FakeListLLM,
    LanguageModelInput,
)
from langchain_core.load import dumps
from langchain_core.messages import AIMessage, BaseMessage
from langchain_core.outputs import ChatResult
from langchain_core.prompts import PromptTemplate
from langchain_core.runnables import (
    Runnable,
    RunnableBinding,
    RunnableGenerator,
    RunnableLambda,
    RunnableParallel,
    RunnablePassthrough,
    RunnableWithFallbacks,
)
from langchain_core.tools import BaseTool


@pytest.fixture
def llm() -> RunnableWithFallbacks[Any, Any]:
    error_llm = FakeListLLM(responses=["foo"], i=1)
    pass_llm = FakeListLLM(responses=["bar"])

    return error_llm.with_fallbacks([pass_llm])


@pytest.fixture
def llm_multi() -> RunnableWithFallbacks[Any, Any]:
    error_llm = FakeListLLM(responses=["foo"], i=1)
    error_llm_2 = FakeListLLM(responses=["baz"], i=1)
    pass_llm = FakeListLLM(responses=["bar"])

    return error_llm.with_fallbacks([error_llm_2, pass_llm])


@pytest.fixture
def chain() -> Runnable[Any, str]:
    error_llm = FakeListLLM(responses=["foo"], i=1)
    pass_llm = FakeListLLM(responses=["bar"])

    prompt = PromptTemplate.from_template("what did baz say to {buz}")
    return RunnableParallel({"buz": lambda x: x}) | (prompt | error_llm).with_fallbacks(
        [prompt | pass_llm]
    )


// ... (343 more lines)

Domain

CoreAbstractions

Subdomains

Serialization

Classes

Dependencies

collections.abc
langchain_core.callbacks
langchain_core.language_models
langchain_core.load
langchain_core.messages
langchain_core.outputs
langchain_core.prompts
langchain_core.runnables
langchain_core.tools
pydantic
pytest
syrupy.assertion
typing
typing_extensions

Source

View on GitHub

Frequently Asked Questions

What does test_fallbacks.py do?

test_fallbacks.py is a source file in the langchain codebase, written in python. It belongs to the CoreAbstractions domain, Serialization subdomain.

What functions are defined in test_fallbacks.py?

test_fallbacks.py defines 25 function(s): _agenerate, _agenerate_delayed_error, _agenerate_immediate_error, _assert_potential_error, _dont_raise_error, _error, _generate, _generate_delayed_error, _generate_immediate_error, _raise_error, and 15 more.

What does test_fallbacks.py depend on?

test_fallbacks.py imports 14 module(s): collections.abc, langchain_core.callbacks, langchain_core.language_models, langchain_core.load, langchain_core.messages, langchain_core.outputs, langchain_core.prompts, langchain_core.runnables, and 6 more.

Where is test_fallbacks.py in the architecture?

test_fallbacks.py is located at libs/core/tests/unit_tests/runnables/test_fallbacks.py (domain: CoreAbstractions, subdomain: Serialization, directory: libs/core/tests/unit_tests/runnables).

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