test_summary_buffer_memory_summary_async() — langchain Function Reference

Source Code

libs/langchain/tests/unit_tests/chains/test_summary_buffer_memory.py lines 54–66

async def test_summary_buffer_memory_summary_async() -> None:
    """Test ConversationSummaryBufferMemory when only buffer."""
    llm = FakeLLM(queries={0: "summary"}, sequential_responses=True)
    memory = ConversationSummaryBufferMemory(
        llm=llm,
        memory_key="baz",
        max_token_limit=5,
    )
    await memory.asave_context({"input": "bar"}, {"output": "foo"})
    await memory.asave_context({"input": "bar1"}, {"output": "foo1"})
    assert memory.buffer == "System: summary\nHuman: bar1\nAI: foo1"
    output = await memory.aload_memory_variables({})
    assert output == {"baz": "System: summary\nHuman: bar1\nAI: foo1"}