test_tracer_llm_run_on_error() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase calls 1

Entity Profile

LangChainCore→ LanguageModelBase→ test_tracer_llm_run_on_error() — langchain Function Reference

Dependency Diagram

graph TD
  4a01d419_8af9_b8ed_e9b2_6da7497ccf2d["test_tracer_llm_run_on_error()"]
  013f89c1_4436_b008_1552_7a3ea97dace9["test_base_tracer.py"]
  4a01d419_8af9_b8ed_e9b2_6da7497ccf2d -->|defined in| 013f89c1_4436_b008_1552_7a3ea97dace9
  6e040bd9_776b_69d1_2348_538d6cc259ae["_compare_run_with_error()"]
  4a01d419_8af9_b8ed_e9b2_6da7497ccf2d -->|calls| 6e040bd9_776b_69d1_2348_538d6cc259ae
  style 4a01d419_8af9_b8ed_e9b2_6da7497ccf2d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/tracers/test_base_tracer.py lines 340–368

def test_tracer_llm_run_on_error() -> None:
    """Test tracer on an LLM run with an error."""
    exception = Exception("test")
    uuid = uuid4()

    compare_run = Run(
        id=str(uuid),
        name="llm",
        start_time=datetime.now(timezone.utc),
        end_time=datetime.now(timezone.utc),
        events=[
            {"name": "start", "time": datetime.now(timezone.utc)},
            {"name": "error", "time": datetime.now(timezone.utc)},
        ],
        extra={},
        serialized=SERIALIZED,
        inputs={"prompts": []},
        outputs=None,
        error=repr(exception),
        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_error(exception, run_id=uuid)
    assert len(tracer.runs) == 1
    _compare_run_with_error(tracer.runs[0], compare_run)