File size: 3,669 Bytes
5e5d6c5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | 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
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