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MockAsyncContextManager Class — langchain Architecture

Architecture documentation for the MockAsyncContextManager class in test_base.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  af82a5fb_17e6_2ea7_6022_f5b70af353d2["MockAsyncContextManager"]
  48232d20_f8c1_b597_14fa_7dc407e9bfe5["test_base.py"]
  af82a5fb_17e6_2ea7_6022_f5b70af353d2 -->|defined in| 48232d20_f8c1_b597_14fa_7dc407e9bfe5
  b2f91b35_f79c_36e9_6d18_34b13fce8041["__init__()"]
  af82a5fb_17e6_2ea7_6022_f5b70af353d2 -->|method| b2f91b35_f79c_36e9_6d18_34b13fce8041
  9fc74cb5_c544_235e_c406_f6ef97bc9ea7["__aenter__()"]
  af82a5fb_17e6_2ea7_6022_f5b70af353d2 -->|method| 9fc74cb5_c544_235e_c406_f6ef97bc9ea7
  4db11622_a7dc_cf09_7def_77d68ea4f769["__aexit__()"]
  af82a5fb_17e6_2ea7_6022_f5b70af353d2 -->|method| 4db11622_a7dc_cf09_7def_77d68ea4f769
  a58b8d8d_2411_aa29_2e19_d2a33e18b204["__aiter__()"]
  af82a5fb_17e6_2ea7_6022_f5b70af353d2 -->|method| a58b8d8d_2411_aa29_2e19_d2a33e18b204
  4b991108_3003_f51c_84df_324fd867ee40["__anext__()"]
  af82a5fb_17e6_2ea7_6022_f5b70af353d2 -->|method| 4b991108_3003_f51c_84df_324fd867ee40

Relationship Graph

Source Code

libs/partners/openai/tests/unit_tests/chat_models/test_base.py lines 317–342

class MockAsyncContextManager:
    def __init__(self, chunk_list: list) -> None:
        self.current_chunk = 0
        self.chunk_list = chunk_list
        self.chunk_num = len(chunk_list)

    async def __aenter__(self) -> Self:
        return self

    async def __aexit__(
        self,
        exc_type: type[BaseException] | None,
        exc: BaseException | None,
        tb: TracebackType | None,
    ) -> None:
        pass

    def __aiter__(self) -> MockAsyncContextManager:
        return self

    async def __anext__(self) -> dict:
        if self.current_chunk < self.chunk_num:
            chunk = self.chunk_list[self.current_chunk]
            self.current_chunk += 1
            return chunk
        raise StopAsyncIteration

Defined In

Source

Frequently Asked Questions

What is the MockAsyncContextManager class?
MockAsyncContextManager is a class in the langchain codebase, defined in libs/partners/openai/tests/unit_tests/chat_models/test_base.py.
Where is MockAsyncContextManager defined?
MockAsyncContextManager is defined in libs/partners/openai/tests/unit_tests/chat_models/test_base.py at line 317.

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