108 lines
4.6 KiB
Python
108 lines
4.6 KiB
Python
import lancedb
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import pytest
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from haiku.rag.store.engine import Store
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from haiku.rag.store.exceptions import MigrationRequiredError
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from haiku.rag.store.models.document import Document
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from haiku.rag.store.repositories.document import DocumentRepository
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from tests.store.legacy_documents import (
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LegacyDocumentRecord,
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seed_legacy_documents,
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)
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@pytest.mark.asyncio
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async def test_create_rolls_back_meta_when_documents_write_fails(temp_db_path):
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"""A failed documents write must not leave an orphan document_meta row that
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list_all/count would surface (they read document_meta). The rollback must be
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targeted — it deletes only the failed row, leaving other documents intact."""
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async with Store(temp_db_path, create=True, skip_migration_check=True) as store:
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repo = DocumentRepository(store)
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# A pre-existing document that must survive the failed create's rollback.
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good = await repo.create(Document(content="keep", uri="mem://keep"))
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assert good.id is not None
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original_add = store.documents_table.add
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async def boom(*_args, **_kwargs):
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raise RuntimeError("documents write failed")
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store.documents_table.add = boom
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with pytest.raises(RuntimeError, match="documents write failed"):
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await repo.create(Document(content="x", uri="mem://ghost"))
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store.documents_table.add = original_add
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# The ghost's meta row was deleted; the good document is untouched.
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assert await repo.count() == 1
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assert [d.id for d in await repo.list_all()] == [good.id]
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assert await store.document_meta_table.count_rows() == 1
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assert await repo.get_by_uri("mem://ghost") is None
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fetched = await repo.get_by_id(good.id)
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assert fetched is not None and fetched.uri == "mem://keep"
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@pytest.mark.asyncio
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async def test_update_missing_id_does_not_create_ghost(temp_db_path):
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"""update()/update_meta() for an id with no documents row must not insert a
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document_meta row — otherwise it would show up in list_all/count while
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get_by_id returns None."""
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async with Store(temp_db_path, create=True, skip_migration_check=True) as store:
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repo = DocumentRepository(store)
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await repo.update(Document(id="missing", content="x", uri="u"))
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assert await repo.count() == 0
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assert await repo.list_all() == []
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assert await store.documents_table.count_rows() == 0
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assert await store.document_meta_table.count_rows() == 0
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assert await repo.get_by_id("missing") is None
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@pytest.mark.asyncio
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async def test_opening_legacy_db_raises_migration_without_mutating(temp_db_path):
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"""Opening a pre-0.57 DB (no document_meta) must raise MigrationRequiredError
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up front — in both writable and read-only mode — and must not mutate the DB
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by creating the new table on open."""
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async with Store(temp_db_path, create=True, skip_migration_check=True) as store:
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await seed_legacy_documents(
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store,
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[LegacyDocumentRecord(id="d", content="x", uri="u", metadata="{}")],
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)
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# A real pre-0.57 DB has no document_meta table.
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await store.db.drop_table("document_meta")
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await store.set_haiku_version("0.56.0")
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# Writable open: pending migration surfaces before any table creation.
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with pytest.raises(MigrationRequiredError):
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async with Store(temp_db_path):
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pass
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# Read-only open: must also be MigrationRequiredError (not ReadOnlyError).
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with pytest.raises(MigrationRequiredError):
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async with Store(temp_db_path, read_only=True):
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pass
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# The failed opens did not create document_meta.
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raw = await lancedb.connect_async(str(temp_db_path))
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assert "document_meta" not in (await raw.list_tables()).tables
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@pytest.mark.asyncio
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async def test_migrate_creates_and_populates_document_meta(temp_db_path):
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"""The migrate path (skip_migration_check) still creates and fills
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document_meta for a legacy DB."""
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async with Store(temp_db_path, create=True, skip_migration_check=True) as store:
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await seed_legacy_documents(
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store,
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[LegacyDocumentRecord(id="d", content="x", uri="u", metadata="{}")],
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)
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await store.db.drop_table("document_meta")
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await store.set_haiku_version("0.56.0")
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async with Store(temp_db_path, skip_migration_check=True) as store:
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await store.migrate()
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assert "document_meta" in (await store.db.list_tables()).tables
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repo = DocumentRepository(store)
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doc = await repo.get_by_id("d")
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assert doc is not None and doc.uri == "u"
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