test_tracer_llm_run() — langchain Function Reference

Architecture documentation for the test_tracer_llm_run() function in test_base_tracer.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ test_tracer_llm_run() — langchain Function Reference

Dependency Diagram

graph TD
  1683755d_3fb8_8944_52eb_2e420fc8d421["test_tracer_llm_run()"]
  013f89c1_4436_b008_1552_7a3ea97dace9["test_base_tracer.py"]
  1683755d_3fb8_8944_52eb_2e420fc8d421 -->|defined in| 013f89c1_4436_b008_1552_7a3ea97dace9
  style 1683755d_3fb8_8944_52eb_2e420fc8d421 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/tracers/test_base_tracer.py lines 62–88

def test_tracer_llm_run() -> None:
    """Test tracer on an LLM run."""
    uuid = uuid4()
    compare_run = Run(
        id=uuid,
        name="llm",
        parent_run_id=None,
        start_time=datetime.now(timezone.utc),
        end_time=datetime.now(timezone.utc),
        events=[
            {"name": "start", "time": datetime.now(timezone.utc)},
            {"name": "end", "time": datetime.now(timezone.utc)},
        ],
        extra={},
        serialized=SERIALIZED,
        inputs={"prompts": []},
        outputs=LLMResult(generations=[[]]).model_dump(),
        error=None,
        run_type="llm",
        trace_id=uuid,
        dotted_order=f"20230101T000000000000Z{uuid}",
    )
    tracer = FakeTracer()

    tracer.on_llm_start(serialized=SERIALIZED, prompts=[], run_id=uuid)
    tracer.on_llm_end(response=LLMResult(generations=[[]]), run_id=uuid)
    assert tracer.runs == [compare_run]