test_parse_model_string_errors() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ test_parse_model_string_errors() — langchain Function Reference

Dependency Diagram

graph TD
  2689dd17_4dff_1bb6_1953_b161dc3d7606["test_parse_model_string_errors()"]
  da0101ff_3641_29c7_9da2_59715316b6f2["test_base.py"]
  2689dd17_4dff_1bb6_1953_b161dc3d7606 -->|defined in| da0101ff_3641_29c7_9da2_59715316b6f2
  style 2689dd17_4dff_1bb6_1953_b161dc3d7606 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/embeddings/test_base.py lines 29–51

def test_parse_model_string_errors() -> None:
    """Test error cases for model string parsing."""
    with pytest.raises(ValueError, match="Model name must be"):
        _parse_model_string("just-a-model-name")

    with pytest.raises(ValueError, match="Invalid model format "):
        _parse_model_string("")

    with pytest.raises(ValueError, match="is not supported"):
        _parse_model_string(":model-name")

    with pytest.raises(ValueError, match="Model name cannot be empty"):
        _parse_model_string("openai:")

    with pytest.raises(
        ValueError,
        match="Provider 'invalid-provider' is not supported",
    ):
        _parse_model_string("invalid-provider:model-name")

    for provider in _BUILTIN_PROVIDERS:
        with pytest.raises(ValueError, match=f"{provider}"):
            _parse_model_string("invalid-provider:model-name")