langchain/libs/community/tests/unit_tests/retrievers/test_bm25.py
Bagatur ed58eeb9c5
community[major], core[patch], langchain[patch], experimental[patch]: Create langchain-community (#14463)
Moved the following modules to new package langchain-community in a backwards compatible fashion:

```
mv langchain/langchain/adapters community/langchain_community
mv langchain/langchain/callbacks community/langchain_community/callbacks
mv langchain/langchain/chat_loaders community/langchain_community
mv langchain/langchain/chat_models community/langchain_community
mv langchain/langchain/document_loaders community/langchain_community
mv langchain/langchain/docstore community/langchain_community
mv langchain/langchain/document_transformers community/langchain_community
mv langchain/langchain/embeddings community/langchain_community
mv langchain/langchain/graphs community/langchain_community
mv langchain/langchain/llms community/langchain_community
mv langchain/langchain/memory/chat_message_histories community/langchain_community
mv langchain/langchain/retrievers community/langchain_community
mv langchain/langchain/storage community/langchain_community
mv langchain/langchain/tools community/langchain_community
mv langchain/langchain/utilities community/langchain_community
mv langchain/langchain/vectorstores community/langchain_community
mv langchain/langchain/agents/agent_toolkits community/langchain_community
mv langchain/langchain/cache.py community/langchain_community
mv langchain/langchain/adapters community/langchain_community
mv langchain/langchain/callbacks community/langchain_community/callbacks
mv langchain/langchain/chat_loaders community/langchain_community
mv langchain/langchain/chat_models community/langchain_community
mv langchain/langchain/document_loaders community/langchain_community
mv langchain/langchain/docstore community/langchain_community
mv langchain/langchain/document_transformers community/langchain_community
mv langchain/langchain/embeddings community/langchain_community
mv langchain/langchain/graphs community/langchain_community
mv langchain/langchain/llms community/langchain_community
mv langchain/langchain/memory/chat_message_histories community/langchain_community
mv langchain/langchain/retrievers community/langchain_community
mv langchain/langchain/storage community/langchain_community
mv langchain/langchain/tools community/langchain_community
mv langchain/langchain/utilities community/langchain_community
mv langchain/langchain/vectorstores community/langchain_community
mv langchain/langchain/agents/agent_toolkits community/langchain_community
mv langchain/langchain/cache.py community/langchain_community
```

Moved the following to core
```
mv langchain/langchain/utils/json_schema.py core/langchain_core/utils
mv langchain/langchain/utils/html.py core/langchain_core/utils
mv langchain/langchain/utils/strings.py core/langchain_core/utils
cat langchain/langchain/utils/env.py >> core/langchain_core/utils/env.py
rm langchain/langchain/utils/env.py
```

See .scripts/community_split/script_integrations.sh for all changes
2023-12-11 13:53:30 -08:00

35 lines
1.2 KiB
Python

import pytest
from langchain_core.documents import Document
from langchain_community.retrievers.bm25 import BM25Retriever
@pytest.mark.requires("rank_bm25")
def test_from_texts() -> None:
input_texts = ["I have a pen.", "Do you have a pen?", "I have a bag."]
bm25_retriever = BM25Retriever.from_texts(texts=input_texts)
assert len(bm25_retriever.docs) == 3
assert bm25_retriever.vectorizer.doc_len == [4, 5, 4]
@pytest.mark.requires("rank_bm25")
def test_from_texts_with_bm25_params() -> None:
input_texts = ["I have a pen.", "Do you have a pen?", "I have a bag."]
bm25_retriever = BM25Retriever.from_texts(
texts=input_texts, bm25_params={"epsilon": 10}
)
# should count only multiple words (have, pan)
assert bm25_retriever.vectorizer.epsilon == 10
@pytest.mark.requires("rank_bm25")
def test_from_documents() -> None:
input_docs = [
Document(page_content="I have a pen."),
Document(page_content="Do you have a pen?"),
Document(page_content="I have a bag."),
]
bm25_retriever = BM25Retriever.from_documents(documents=input_docs)
assert len(bm25_retriever.docs) == 3
assert bm25_retriever.vectorizer.doc_len == [4, 5, 4]