test_base_blob_parser() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase calls 1

Entity Profile

LangChainCore→ LanguageModelBase→ test_base_blob_parser() — langchain Function Reference

Dependency Diagram

graph TD
  6208ca00_fc7e_e680_f07d_13096c48b128["test_base_blob_parser()"]
  4065e356_4cef_efc9_e857_ddfbac38b947["test_base.py"]
  6208ca00_fc7e_e680_f07d_13096c48b128 -->|defined in| 4065e356_4cef_efc9_e857_ddfbac38b947
  fdf31552_7a88_cfa9_7427_b2179bccb4f7["lazy_parse()"]
  6208ca00_fc7e_e680_f07d_13096c48b128 -->|calls| fdf31552_7a88_cfa9_7427_b2179bccb4f7
  style 6208ca00_fc7e_e680_f07d_13096c48b128 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/document_loaders/test_base.py lines 10–30

def test_base_blob_parser() -> None:
    """Verify that the eager method is hooked up to the lazy method by default."""

    class MyParser(BaseBlobParser):
        """A simple parser that returns a single document."""

        @override
        def lazy_parse(self, blob: Blob) -> Iterator[Document]:
            """Lazy parsing interface."""
            yield Document(
                page_content="foo",
            )

    parser = MyParser()

    assert isinstance(parser.lazy_parse(Blob(data="who?")), Iterator)

    # We're verifying that the eager method is hooked up to the lazy method by default.
    docs = parser.parse(Blob(data="who?"))
    assert len(docs) == 1
    assert docs[0].page_content == "foo"