test_tracer_chain_run_on_error() — langchain Function Reference

Architecture documentation for the test_tracer_chain_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_chain_run_on_error() — langchain Function Reference

Dependency Diagram

graph TD
  0daad3a1_a6a6_906c_924f_dac02fc76514["test_tracer_chain_run_on_error()"]
  013f89c1_4436_b008_1552_7a3ea97dace9["test_base_tracer.py"]
  0daad3a1_a6a6_906c_924f_dac02fc76514 -->|defined in| 013f89c1_4436_b008_1552_7a3ea97dace9
  6e040bd9_776b_69d1_2348_538d6cc259ae["_compare_run_with_error()"]
  0daad3a1_a6a6_906c_924f_dac02fc76514 -->|calls| 6e040bd9_776b_69d1_2348_538d6cc259ae
  style 0daad3a1_a6a6_906c_924f_dac02fc76514 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/tracers/test_base_tracer.py lines 409–436

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

    compare_run = Run(
        id=str(uuid),
        name="chain",
        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={"name": "chain"},
        inputs={},
        outputs=None,
        error=repr(exception),
        run_type="chain",
        trace_id=uuid,
        dotted_order=f"20230101T000000000000Z{uuid}",
    )
    tracer = FakeTracer()

    tracer.on_chain_start(serialized={"name": "chain"}, inputs={}, run_id=uuid)
    tracer.on_chain_error(exception, run_id=uuid)
    _compare_run_with_error(tracer.runs[0], compare_run)