langchain/libs/standard-tests/langchain_tests/integration_tests/indexer.py

401 lines
15 KiB
Python

"""Test suite to check index implementations.
Standard tests for the DocumentIndex abstraction
We don't recommend implementing externally managed DocumentIndex abstractions at this
time.
:private:
"""
import inspect
import uuid
from abc import ABC, abstractmethod
from typing import AsyncGenerator, Generator
import pytest
from langchain_core.documents import Document
from langchain_core.indexing.base import DocumentIndex
class DocumentIndexerTestSuite(ABC):
"""Test suite for checking the read-write of a document index.
Implementers should subclass this test suite and provide a fixture
that returns an empty index for each test.
"""
@abstractmethod
@pytest.fixture
def index(self) -> Generator[DocumentIndex, None, None]:
"""Get the index."""
def test_upsert_documents_has_no_ids(self, index: DocumentIndex) -> None:
"""Verify that there is not parameter called ids in upsert"""
signature = inspect.signature(index.upsert)
assert "ids" not in signature.parameters
def test_upsert_no_ids(self, index: DocumentIndex) -> None:
"""Upsert works with documents that do not have IDs.
At the moment, the ID field in documents is optional.
"""
documents = [
Document(page_content="foo", metadata={"id": 1}),
Document(page_content="bar", metadata={"id": 2}),
]
response = index.upsert(documents)
ids = sorted(response["succeeded"])
# Ordering is not guaranteed, need to test carefully
documents = index.get(ids)
sorted_documents = sorted(documents, key=lambda x: x.id) # type: ignore
if sorted_documents[0].page_content == "bar":
assert sorted_documents[0] == Document(
page_content="bar", metadata={"id": 2}, id=ids[0]
)
assert sorted_documents[1] == Document(
page_content="foo", metadata={"id": 1}, id=ids[1]
)
else:
assert sorted_documents[0] == Document(
page_content="foo", metadata={"id": 1}, id=ids[0]
)
assert sorted_documents[1] == Document(
page_content="bar", metadata={"id": 2}, id=ids[1]
)
def test_upsert_some_ids(self, index: DocumentIndex) -> None:
"""Test an upsert where some docs have ids and some dont."""
foo_uuid = str(uuid.UUID(int=7))
documents = [
Document(id=foo_uuid, page_content="foo", metadata={"id": 1}),
Document(page_content="bar", metadata={"id": 2}),
]
response = index.upsert(documents)
ids = response["succeeded"]
other_id = list(set(ids) - {foo_uuid})[0]
assert response["failed"] == []
assert foo_uuid in ids
# Ordering is not guaranteed, so we use a set.
documents = index.get(ids)
first_doc = documents[0]
if first_doc.id == foo_uuid:
assert documents == [
Document(page_content="foo", metadata={"id": 1}, id=foo_uuid),
Document(page_content="bar", metadata={"id": 2}, id=other_id),
]
else:
assert documents == [
Document(page_content="bar", metadata={"id": 2}, id=other_id),
Document(page_content="foo", metadata={"id": 1}, id=foo_uuid),
]
def test_upsert_overwrites(self, index: DocumentIndex) -> None:
"""Test that upsert overwrites existing content."""
foo_uuid = str(uuid.UUID(int=7))
documents = [
Document(id=foo_uuid, page_content="foo", metadata={"bar": 1}),
]
response = index.upsert(documents)
ids = response["succeeded"]
assert response["failed"] == []
assert index.get(ids) == [
Document(page_content="foo", metadata={"bar": 1}, id=foo_uuid),
]
# Now let's overwrite foo
index.upsert([Document(id=foo_uuid, page_content="foo2", metadata={"meow": 2})])
documents = index.get([foo_uuid])
assert documents == [
Document(page_content="foo2", metadata={"meow": 2}, id=foo_uuid)
]
def test_delete_missing_docs(self, index: DocumentIndex) -> None:
"""Verify that we can delete docs that aren't there."""
assert index.get(["1"]) == [] # Should be empty.
delete_response = index.delete(["1"])
if "num_deleted" in delete_response:
assert delete_response["num_deleted"] == 0
if "num_failed" in delete_response:
# Deleting a missing an ID is **not** failure!!
assert delete_response["num_failed"] == 0
if "succeeded" in delete_response:
# There was nothing to delete!
assert delete_response["succeeded"] == []
if "failed" in delete_response:
# Nothing should have failed
assert delete_response["failed"] == []
def test_delete_semantics(self, index: DocumentIndex) -> None:
"""Test deletion of content has appropriate semantics."""
# Let's index a document first.
foo_uuid = str(uuid.UUID(int=7))
upsert_response = index.upsert(
[Document(id=foo_uuid, page_content="foo", metadata={})]
)
assert upsert_response == {"succeeded": [foo_uuid], "failed": []}
delete_response = index.delete(["missing_id", foo_uuid])
if "num_deleted" in delete_response:
assert delete_response["num_deleted"] == 1
if "num_failed" in delete_response:
# Deleting a missing an ID is **not** failure!!
assert delete_response["num_failed"] == 0
if "succeeded" in delete_response:
# There was nothing to delete!
assert delete_response["succeeded"] == [foo_uuid]
if "failed" in delete_response:
# Nothing should have failed
assert delete_response["failed"] == []
def test_bulk_delete(self, index: DocumentIndex) -> None:
"""Test that we can delete several documents at once."""
documents = [
Document(id="1", page_content="foo", metadata={"id": 1}),
Document(id="2", page_content="bar", metadata={"id": 2}),
Document(id="3", page_content="baz", metadata={"id": 3}),
]
index.upsert(documents)
index.delete(["1", "2"])
assert index.get(["1", "2", "3"]) == [
Document(page_content="baz", metadata={"id": 3}, id="3")
]
def test_delete_no_args(self, index: DocumentIndex) -> None:
"""Test delete with no args raises ValueError."""
with pytest.raises(ValueError):
index.delete()
def test_delete_missing_content(self, index: DocumentIndex) -> None:
"""Deleting missing content should not raise an exception."""
index.delete(["1"])
index.delete(["1", "2", "3"])
def test_get_with_missing_ids(self, index: DocumentIndex) -> None:
"""Test get with missing IDs."""
documents = [
Document(id="1", page_content="foo", metadata={"id": 1}),
Document(id="2", page_content="bar", metadata={"id": 2}),
]
upsert_response = index.upsert(documents)
assert upsert_response == {
"succeeded": ["1", "2"],
"failed": [],
}
retrieved_documents = index.get(["1", "2", "3", "4"])
# The ordering is not guaranteed, so we use a set.
assert sorted(retrieved_documents, key=lambda x: x.id) == [ # type: ignore
Document(page_content="foo", metadata={"id": 1}, id="1"),
Document(page_content="bar", metadata={"id": 2}, id="2"),
]
def test_get_missing(self, index: DocumentIndex) -> None:
"""Test get by IDs with missing IDs."""
# This should not raise an exception
documents = index.get(["1", "2", "3"])
assert documents == []
class AsyncDocumentIndexTestSuite(ABC):
"""Test suite for checking the read-write of a document index.
Implementers should subclass this test suite and provide a fixture
that returns an empty index for each test.
"""
@abstractmethod
@pytest.fixture
async def index(self) -> AsyncGenerator[DocumentIndex, None]:
"""Get the index."""
async def test_upsert_documents_has_no_ids(self, index: DocumentIndex) -> None:
"""Verify that there is not parameter called ids in upsert"""
signature = inspect.signature(index.upsert)
assert "ids" not in signature.parameters
async def test_upsert_no_ids(self, index: DocumentIndex) -> None:
"""Upsert works with documents that do not have IDs.
At the moment, the ID field in documents is optional.
"""
documents = [
Document(page_content="foo", metadata={"id": 1}),
Document(page_content="bar", metadata={"id": 2}),
]
response = await index.aupsert(documents)
ids = sorted(response["succeeded"])
# Ordering is not guaranteed, need to test carefully
documents = await index.aget(ids)
sorted_documents = sorted(documents, key=lambda x: x.id) # type: ignore
if sorted_documents[0].page_content == "bar":
assert sorted_documents[0] == Document(
page_content="bar", metadata={"id": 2}, id=ids[0]
)
assert sorted_documents[1] == Document(
page_content="foo", metadata={"id": 1}, id=ids[1]
)
else:
assert sorted_documents[0] == Document(
page_content="foo", metadata={"id": 1}, id=ids[0]
)
assert sorted_documents[1] == Document(
page_content="bar", metadata={"id": 2}, id=ids[1]
)
async def test_upsert_some_ids(self, index: DocumentIndex) -> None:
"""Test an upsert where some docs have ids and some dont."""
foo_uuid = str(uuid.UUID(int=7))
documents = [
Document(id=foo_uuid, page_content="foo", metadata={"id": 1}),
Document(page_content="bar", metadata={"id": 2}),
]
response = await index.aupsert(documents)
ids = response["succeeded"]
other_id = list(set(ids) - {foo_uuid})[0]
assert response["failed"] == []
assert foo_uuid in ids
# Ordering is not guaranteed, so we use a set.
documents = await index.aget(ids)
first_doc = documents[0]
if first_doc.id == foo_uuid:
assert documents == [
Document(page_content="foo", metadata={"id": 1}, id=foo_uuid),
Document(page_content="bar", metadata={"id": 2}, id=other_id),
]
else:
assert documents == [
Document(page_content="bar", metadata={"id": 2}, id=other_id),
Document(page_content="foo", metadata={"id": 1}, id=foo_uuid),
]
async def test_upsert_overwrites(self, index: DocumentIndex) -> None:
"""Test that upsert overwrites existing content."""
foo_uuid = str(uuid.UUID(int=7))
documents = [
Document(id=foo_uuid, page_content="foo", metadata={"bar": 1}),
]
response = await index.aupsert(documents)
ids = response["succeeded"]
assert response["failed"] == []
assert await index.aget(ids) == [
Document(page_content="foo", metadata={"bar": 1}, id=foo_uuid),
]
# Now let's overwrite foo
await index.aupsert(
[Document(id=foo_uuid, page_content="foo2", metadata={"meow": 2})]
)
documents = await index.aget([foo_uuid])
assert documents == [
Document(page_content="foo2", metadata={"meow": 2}, id=foo_uuid)
]
async def test_delete_missing_docs(self, index: DocumentIndex) -> None:
"""Verify that we can delete docs that aren't there."""
assert await index.aget(["1"]) == [] # Should be empty.
delete_response = await index.adelete(["1"])
if "num_deleted" in delete_response:
assert delete_response["num_deleted"] == 0
if "num_failed" in delete_response:
# Deleting a missing an ID is **not** failure!!
assert delete_response["num_failed"] == 0
if "succeeded" in delete_response:
# There was nothing to delete!
assert delete_response["succeeded"] == []
if "failed" in delete_response:
# Nothing should have failed
assert delete_response["failed"] == []
async def test_delete_semantics(self, index: DocumentIndex) -> None:
"""Test deletion of content has appropriate semantics."""
# Let's index a document first.
foo_uuid = str(uuid.UUID(int=7))
upsert_response = await index.aupsert(
[Document(id=foo_uuid, page_content="foo", metadata={})]
)
assert upsert_response == {"succeeded": [foo_uuid], "failed": []}
delete_response = await index.adelete(["missing_id", foo_uuid])
if "num_deleted" in delete_response:
assert delete_response["num_deleted"] == 1
if "num_failed" in delete_response:
# Deleting a missing an ID is **not** failure!!
assert delete_response["num_failed"] == 0
if "succeeded" in delete_response:
# There was nothing to delete!
assert delete_response["succeeded"] == [foo_uuid]
if "failed" in delete_response:
# Nothing should have failed
assert delete_response["failed"] == []
async def test_bulk_delete(self, index: DocumentIndex) -> None:
"""Test that we can delete several documents at once."""
documents = [
Document(id="1", page_content="foo", metadata={"id": 1}),
Document(id="2", page_content="bar", metadata={"id": 2}),
Document(id="3", page_content="baz", metadata={"id": 3}),
]
await index.aupsert(documents)
await index.adelete(["1", "2"])
assert await index.aget(["1", "2", "3"]) == [
Document(page_content="baz", metadata={"id": 3}, id="3")
]
async def test_delete_no_args(self, index: DocumentIndex) -> None:
"""Test delete with no args raises ValueError."""
with pytest.raises(ValueError):
await index.adelete()
async def test_delete_missing_content(self, index: DocumentIndex) -> None:
"""Deleting missing content should not raise an exception."""
await index.adelete(["1"])
await index.adelete(["1", "2", "3"])
async def test_get_with_missing_ids(self, index: DocumentIndex) -> None:
"""Test get with missing IDs."""
documents = [
Document(id="1", page_content="foo", metadata={"id": 1}),
Document(id="2", page_content="bar", metadata={"id": 2}),
]
upsert_response = await index.aupsert(documents)
assert upsert_response == {
"succeeded": ["1", "2"],
"failed": [],
}
retrieved_documents = await index.aget(["1", "2", "3", "4"])
# The ordering is not guaranteed, so we use a set.
assert sorted(retrieved_documents, key=lambda x: x.id) == [ # type: ignore
Document(page_content="foo", metadata={"id": 1}, id="1"),
Document(page_content="bar", metadata={"id": 2}, id="2"),
]
async def test_get_missing(self, index: DocumentIndex) -> None:
"""Test get by IDs with missing IDs."""
# This should not raise an exception
documents = await index.aget(["1", "2", "3"])
assert documents == []