test_no_delete() — langchain Function Reference

Architecture documentation for the test_no_delete() function in test_indexing.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

LangChainCore→ Runnables→ test_no_delete() — langchain Function Reference

Dependency Diagram

graph TD
  3e346cb9_4516_478a_05a7_56bd59ff263d["test_no_delete()"]
  9bc4e8b6_769a_ae11_3fc1_309cb678c248["test_indexing.py"]
  3e346cb9_4516_478a_05a7_56bd59ff263d -->|defined in| 9bc4e8b6_769a_ae11_3fc1_309cb678c248
  style 3e346cb9_4516_478a_05a7_56bd59ff263d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/indexes/test_indexing.py lines 511–596

def test_no_delete(
    record_manager: SQLRecordManager,
    vector_store: InMemoryVectorStore,
) -> None:
    """Test indexing without a deletion strategy."""
    loader = ToyLoader(
        documents=[
            Document(
                page_content="This is a test document.",
                metadata={"source": "1"},
            ),
            Document(
                page_content="This is another document.",
                metadata={"source": "2"},
            ),
        ],
    )

    with patch.object(
        record_manager,
        "get_time",
        return_value=_JANUARY_SECOND,
    ):
        assert index(
            loader,
            record_manager,
            vector_store,
            cleanup=None,
            source_id_key="source",
        ) == {
            "num_added": 2,
            "num_deleted": 0,
            "num_skipped": 0,
            "num_updated": 0,
        }

    # If we add the same content twice it should be skipped
    with patch.object(
        record_manager,
        "get_time",
        return_value=_JANUARY_SECOND,
    ):
        assert index(
            loader,
            record_manager,
            vector_store,
            cleanup=None,
            source_id_key="source",
        ) == {
            "num_added": 0,
            "num_deleted": 0,
            "num_skipped": 2,
            "num_updated": 0,
        }

    loader = ToyLoader(
        documents=[
            Document(
                page_content="mutated content",
                metadata={"source": "1"},
            ),
            Document(
                page_content="This is another document.",
                metadata={"source": "2"},
            ),
        ],
    )

    # Should result in no updates or deletions!
    with patch.object(
        record_manager,
        "get_time",
        return_value=_JANUARY_SECOND,
    ):
        assert index(
            loader,
            record_manager,
            vector_store,
            cleanup=None,
            source_id_key="source",
        ) == {