test_multiple_output_keys_error() — langchain Function Reference

Architecture documentation for the test_multiple_output_keys_error() function in test_base.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ test_multiple_output_keys_error() — langchain Function Reference

Dependency Diagram

graph TD
  ba9b02d3_a6fc_442d_5e9e_322639a836eb["test_multiple_output_keys_error()"]
  cbc5b920_9825_eac5_8cc4_bc8187fb214c["test_base.py"]
  ba9b02d3_a6fc_442d_5e9e_322639a836eb -->|defined in| cbc5b920_9825_eac5_8cc4_bc8187fb214c
  style ba9b02d3_a6fc_442d_5e9e_322639a836eb fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/chains/test_base.py lines 154–161

def test_multiple_output_keys_error() -> None:
    """Test run with multiple output keys errors as expected."""
    chain = FakeChain(the_output_keys=["foo", "bar"])
    with pytest.raises(
        ValueError,
        match="`run` not supported when there is not exactly one output key",
    ):
        chain.run("bar")