haiku.rag/tests/store/test_engine.py
2026-04-24 17:59:01 -04:00

128 lines
4.7 KiB
Python

import pathlib
from unittest import mock
import pytest
from haiku.rag.config import AppConfig
from haiku.rag.store import Store
from haiku.rag.store.engine import connect_lancedb, get_database_stats
@pytest.mark.asyncio
@pytest.mark.parametrize("w_relative", [False, True])
@mock.patch("lancedb.connect_async")
async def test_connect_lancedb(ldbca, w_relative):
config = AppConfig(environment="testing")
relative_db_path = pathlib.Path("path/to/lancedb")
absolute_db_path = relative_db_path.absolute()
if w_relative:
db_path = relative_db_path
else:
db_path = absolute_db_path
found = await connect_lancedb(config, db_path)
assert found is ldbca.return_value
ldbca.assert_awaited_once_with(absolute_db_path)
class TestGetDatabaseStats:
@pytest.mark.asyncio
async def test_empty_database_stats(self, temp_db_path):
"""get_database_stats() on a fresh database reports zero rows and no vector index."""
async with Store(temp_db_path, create=True) as store:
stats = await get_database_stats(store.db)
for name in ("documents", "chunks", "document_items", "settings"):
assert stats[name]["exists"] is True
assert stats[name]["num_rows"] >= 0
assert stats[name]["total_bytes"] >= 0
assert stats[name]["num_versions"] >= 1
assert stats["documents"]["num_rows"] == 0
assert stats["chunks"]["num_rows"] == 0
assert stats["chunks"]["has_vector_index"] is False
@pytest.mark.asyncio
async def test_missing_tables_report_absent(self, temp_db_path):
"""Tables that don't exist on the connection are reported as absent."""
import lancedb
from lancedb.pydantic import LanceModel
from pydantic import Field
class SettingsRecord(LanceModel):
id: str = Field(default="settings")
settings: str = Field(default="{}")
db = await lancedb.connect_async(temp_db_path)
await db.create_table("settings", schema=SettingsRecord)
stats = await get_database_stats(db)
assert stats["settings"]["exists"] is True
assert stats["documents"] == {"exists": False}
assert stats["chunks"] == {"exists": False}
assert stats["document_items"] == {"exists": False}
@pytest.mark.asyncio
async def test_stats_after_adding_document(self, temp_db_path):
"""get_database_stats() reflects document and chunk counts after inserts."""
from haiku.rag.store.models import Chunk, Document
from haiku.rag.store.repositories.chunk import ChunkRepository
from haiku.rag.store.repositories.document import DocumentRepository
async with Store(temp_db_path, create=True) as store:
doc_repo = DocumentRepository(store)
chunk_repo = ChunkRepository(store)
doc = await doc_repo.create(Document(content="hello world"))
assert doc.id is not None
await chunk_repo.create(
Chunk(
content="hello world",
document_id=doc.id,
embedding=[0.0] * store.embedder._vector_dim,
)
)
stats = await get_database_stats(store.db)
assert stats["documents"]["num_rows"] == 1
assert stats["chunks"]["num_rows"] == 1
@pytest.mark.asyncio
async def test_stats_with_vector_index(self, temp_db_path):
"""get_database_stats() reports vector index details once an index exists."""
from datetime import timedelta
from lancedb.index import IvfPq
async with Store(temp_db_path, create=True) as store:
dim = store.embedder._vector_dim
# Need >=256 rows for IVF_PQ training.
rows = [
{
"id": f"chunk-{i}",
"document_id": "doc-1",
"content": f"content {i}",
"content_fts": "",
"metadata": "{}",
"order": i,
"vector": [float(i % 7) + 0.01 * j for j in range(dim)],
}
for i in range(256)
]
await store.chunks_table.add(rows)
await store.chunks_table.create_index(
"vector", config=IvfPq(distance_type="cosine"), replace=True
)
await store.chunks_table.wait_for_index(
["vector_idx"], timeout=timedelta(minutes=1)
)
stats = await get_database_stats(store.db)
assert stats["chunks"]["has_vector_index"] is True
assert stats["chunks"]["num_indexed_rows"] >= 0
assert "num_unindexed_rows" in stats["chunks"]