| from __future__ import annotations |
|
|
| import sqlite3 |
| from pathlib import Path |
|
|
| import pytest |
|
|
| from ctx.engine.store import JournalCorruption, SQLiteEngineStore, StreamId |
|
|
|
|
| def _schema(path: Path) -> list[tuple[str, str, str, str | None]]: |
| with sqlite3.connect(path) as connection: |
| return [ |
| (str(row[0]), str(row[1]), str(row[2]), row[3]) |
| for row in connection.execute( |
| """ |
| SELECT type, name, tbl_name, sql |
| FROM sqlite_master |
| ORDER BY type, name |
| """ |
| ).fetchall() |
| ] |
|
|
|
|
| def _directory_bytes(parent: Path) -> dict[str, bytes]: |
| return { |
| candidate.name: candidate.read_bytes() |
| for candidate in parent.iterdir() |
| if candidate.is_file() |
| } |
|
|
|
|
| def _create_delete_mode_store(path: Path) -> None: |
| SQLiteEngineStore(path) |
| with sqlite3.connect(path) as connection: |
| mode = connection.execute("PRAGMA journal_mode = DELETE").fetchone() |
| assert mode is not None and mode[0] == "delete" |
|
|
|
|
| def test_read_only_store_opens_exact_schema_without_mutating_database(tmp_path: Path) -> None: |
| path = tmp_path / "engine" / "journal.sqlite3" |
| _create_delete_mode_store(path) |
| schema_before = _schema(path) |
| files_before = _directory_bytes(path.parent) |
|
|
| store = SQLiteEngineStore.open_read_only(path) |
|
|
| assert store.path == path |
| assert ( |
| store.load_head( |
| StreamId( |
| tenant_id="tenant-1", |
| workspace_id="workspace-1", |
| repository_id="repository-1", |
| session_id="session-1", |
| ) |
| ).revision |
| == 0 |
| ) |
| assert _schema(path) == schema_before |
| assert _directory_bytes(path.parent) == files_before |
| with sqlite3.connect(path) as connection: |
| mode = connection.execute("PRAGMA journal_mode").fetchone() |
| assert mode is not None and mode[0] == "delete" |
|
|
|
|
| def test_read_only_store_rejects_empty_database_without_initializing_it(tmp_path: Path) -> None: |
| parent = tmp_path / "engine" |
| parent.mkdir(mode=0o700) |
| path = parent / "journal.sqlite3" |
| path.touch(mode=0o600) |
| files_before = _directory_bytes(parent) |
|
|
| with pytest.raises(JournalCorruption, match="schema"): |
| SQLiteEngineStore.open_read_only(path) |
|
|
| assert _schema(path) == [] |
| assert _directory_bytes(parent) == files_before |
| assert not (parent / "install-execution-locks").exists() |
|
|
|
|
| def test_read_only_store_rejects_missing_table_without_repairing_it(tmp_path: Path) -> None: |
| path = tmp_path / "engine" / "journal.sqlite3" |
| _create_delete_mode_store(path) |
| with sqlite3.connect(path) as connection: |
| connection.execute("DROP TABLE engine_activation_outcomes") |
| schema_before = _schema(path) |
| files_before = _directory_bytes(path.parent) |
|
|
| with pytest.raises(JournalCorruption, match="schema"): |
| SQLiteEngineStore.open_read_only(path) |
|
|
| assert _schema(path) == schema_before |
| assert _directory_bytes(path.parent) == files_before |
|
|
|
|
| def test_read_only_store_rejects_augmented_schema_without_removing_it(tmp_path: Path) -> None: |
| path = tmp_path / "engine" / "journal.sqlite3" |
| _create_delete_mode_store(path) |
| with sqlite3.connect(path) as connection: |
| connection.execute("CREATE TABLE unreviewed_extension (value TEXT)") |
| schema_before = _schema(path) |
| files_before = _directory_bytes(path.parent) |
|
|
| with pytest.raises(JournalCorruption, match="exact required schema"): |
| SQLiteEngineStore.open_read_only(path) |
|
|
| assert _schema(path) == schema_before |
| assert _directory_bytes(path.parent) == files_before |
|
|
