test_single_item_async() — langchain Function Reference

Architecture documentation for the test_single_item_async() function in test_list_parser.py from the langchain codebase.

Function python CoreAbstractions Serialization calls 1

Entity Profile

CoreAbstractions→ Serialization→ test_single_item_async() — langchain Function Reference

Dependency Diagram

graph TD
  bb0b7d3e_0ada_685b_fd63_0e67b2c823c2["test_single_item_async()"]
  8ae9f33a_614d_1533_e9a3_2a17ed09b1eb["test_list_parser.py"]
  bb0b7d3e_0ada_685b_fd63_0e67b2c823c2 -->|defined in| 8ae9f33a_614d_1533_e9a3_2a17ed09b1eb
  f45af033_8079_c0a8_ac59_5f1904e58d19["aiter_from_iter()"]
  bb0b7d3e_0ada_685b_fd63_0e67b2c823c2 -->|calls| f45af033_8079_c0a8_ac59_5f1904e58d19
  style bb0b7d3e_0ada_685b_fd63_0e67b2c823c2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/output_parsers/test_list_parser.py lines 171–198

async def test_single_item_async() -> None:
    """Test that a string with a single item is parsed to a list with that item."""
    parser = CommaSeparatedListOutputParser()
    text = "foo"
    expected = ["foo"]

    assert await parser.aparse(text) == expected
    assert await aadd(parser.atransform(aiter_from_iter(t for t in text))) == expected
    assert [a async for a in parser.atransform(aiter_from_iter(t for t in text))] == [
        [a] for a in expected
    ]
    assert [
        a
        async for a in parser.atransform(
            aiter_from_iter(t for t in text.splitlines(keepends=True))
        )
    ] == [[a] for a in expected]
    assert [
        a
        async for a in parser.atransform(
            aiter_from_iter(
                " " + t if i > 0 else t for i, t in enumerate(text.split(" "))
            )
        )
    ] == [[a] for a in expected]
    assert [a async for a in parser.atransform(aiter_from_iter([text]))] == [
        [a] for a in expected
    ]