langchain/libs/community/tests/unit_tests/test_document_transformers.py

"""Unit tests for document transformers."""
import pytest

pytest.importorskip("langchain_community")

from langchain_community.document_transformers.embeddings_redundant_filter import (  # noqa: E402
    _filter_similar_embeddings,
)
from langchain_community.utils.math import cosine_similarity  # noqa: E402


def test__filter_similar_embeddings() -> None:
    threshold = 0.79
    embedded_docs = [[1.0, 2.0], [1.0, 2.0], [2.0, 1.0], [2.0, 0.5], [0.0, 0.0]]
    expected = [1, 3, 4]
    actual = _filter_similar_embeddings(embedded_docs, cosine_similarity, threshold)
    assert expected == actual


def test__filter_similar_embeddings_empty() -> None:
    assert len(_filter_similar_embeddings([], cosine_similarity, 0.0)) == 0
Contextual compression retriever (#2915) Co-authored-by: Harrison Chase <hw.chase.17@gmail.com> 1 year ago			`"""Unit tests for document transformers."""`
multiple: langchain 0.2 in master (#21191) 0.2rc migrations - [x] Move memory - [x] Move remaining retrievers - [x] graph_qa chains - [x] some dependency from evaluation code potentially on math utils - [x] Move openapi chain from `langchain.chains.api.openapi` to `langchain_community.chains.openapi` - [x] Migrate `langchain.chains.ernie_functions` to `langchain_community.chains.ernie_functions` - [x] migrate `langchain/chains/llm_requests.py` to `langchain_community.chains.llm_requests` - [x] Moving `langchain_community.cross_enoders.base:BaseCrossEncoder` -> `langchain_community.retrievers.document_compressors.cross_encoder:BaseCrossEncoder` (namespace not ideal, but it needs to be moved to `langchain` to avoid circular deps) - [x] unit tests langchain -- add pytest.mark.community to some unit tests that will stay in langchain - [x] unit tests community -- move unit tests that depend on community to community - [x] mv integration tests that depend on community to community - [x] mypy checks Other todo - [x] Make deprecation warnings not noisy (need to use warn deprecated and check that things are implemented properly) - [x] Update deprecation messages with timeline for code removal (likely we actually won't be removing things until 0.4 release) -- will give people more time to transition their code. - [ ] Add information to deprecation warning to show users how to migrate their code base using langchain-cli - [ ] Remove any unnecessary requirements in langchain (e.g., is SQLALchemy required?) --------- Co-authored-by: Erick Friis <erick@langchain.dev> 5 months ago			`import pytest`

			`pytest.importorskip("langchain_community")`

infra: rm unused # noqa violations (#22049) Updating #21137 4 months ago			`from langchain_community.document_transformers.embeddings_redundant_filter import ( # noqa: E402`
Add new types of document transformers (#7379) - Description: Add two new document transformers that translates documents into different languages and converts documents into q&a format to improve vector search results. Uses OpenAI function calling via the [doctran](https://github.com/psychic-api/doctran/tree/main) library. - Issue: N/A - Dependencies: `doctran = "^0.0.5"` - Tag maintainer: @rlancemartin @eyurtsev @hwchase17 - Twitter handle: @psychicapi or @jfan001 Notes - Adheres to the `DocumentTransformer` abstraction set by @dev2049 in #3182 - refactored `EmbeddingsRedundantFilter` to put it in a file under a new `document_transformers` module - Added basic docs for `DocumentInterrogator`, `DocumentTransformer` as well as the existing `EmbeddingsRedundantFilter` --------- Co-authored-by: Lance Martin <lance@langchain.dev> Co-authored-by: Bagatur <baskaryan@gmail.com> 1 year ago			`_filter_similar_embeddings,`
			`)`
multiple: langchain 0.2 in master (#21191) 0.2rc migrations - [x] Move memory - [x] Move remaining retrievers - [x] graph_qa chains - [x] some dependency from evaluation code potentially on math utils - [x] Move openapi chain from `langchain.chains.api.openapi` to `langchain_community.chains.openapi` - [x] Migrate `langchain.chains.ernie_functions` to `langchain_community.chains.ernie_functions` - [x] migrate `langchain/chains/llm_requests.py` to `langchain_community.chains.llm_requests` - [x] Moving `langchain_community.cross_enoders.base:BaseCrossEncoder` -> `langchain_community.retrievers.document_compressors.cross_encoder:BaseCrossEncoder` (namespace not ideal, but it needs to be moved to `langchain` to avoid circular deps) - [x] unit tests langchain -- add pytest.mark.community to some unit tests that will stay in langchain - [x] unit tests community -- move unit tests that depend on community to community - [x] mv integration tests that depend on community to community - [x] mypy checks Other todo - [x] Make deprecation warnings not noisy (need to use warn deprecated and check that things are implemented properly) - [x] Update deprecation messages with timeline for code removal (likely we actually won't be removing things until 0.4 release) -- will give people more time to transition their code. - [ ] Add information to deprecation warning to show users how to migrate their code base using langchain-cli - [ ] Remove any unnecessary requirements in langchain (e.g., is SQLALchemy required?) --------- Co-authored-by: Erick Friis <erick@langchain.dev> 5 months ago			`from langchain_community.utils.math import cosine_similarity # noqa: E402`
Contextual compression retriever (#2915) Co-authored-by: Harrison Chase <hw.chase.17@gmail.com> 1 year ago

			`def test__filter_similar_embeddings() -> None:`
			`threshold = 0.79`
			`embedded_docs = [[1.0, 2.0], [1.0, 2.0], [2.0, 1.0], [2.0, 0.5], [0.0, 0.0]]`
			`expected = [1, 3, 4]`
			`actual = _filter_similar_embeddings(embedded_docs, cosine_similarity, threshold)`
			`assert expected == actual`


			`def test__filter_similar_embeddings_empty() -> None:`
			`assert len(_filter_similar_embeddings([], cosine_similarity, 0.0)) == 0`