Files
seedPass/src/tests/test_legacy_migration_iterations.py
2025-08-11 19:35:03 -04:00

71 lines
2.4 KiB
Python

import base64
import json
from pathlib import Path
import sys
sys.path.append(str(Path(__file__).resolve().parents[1]))
import pytest
import seedpass.core.encryption as enc_module
import seedpass.core.vault as vault_module
from helpers import TEST_PASSWORD
from seedpass.core.encryption import (
EncryptionManager,
_derive_legacy_key_from_password,
)
from seedpass.core.config_manager import ConfigManager
from seedpass.core.vault import Vault
from seedpass.core.migrations import LATEST_VERSION
def _setup_legacy_file(tmp_path: Path, iterations: int) -> None:
legacy_key = _derive_legacy_key_from_password(TEST_PASSWORD, iterations=iterations)
mgr = EncryptionManager(legacy_key, tmp_path)
data = {"schema_version": LATEST_VERSION, "entries": {"0": {"kind": "test"}}}
json_bytes = json.dumps(data, separators=(",", ":")).encode("utf-8")
legacy_encrypted = mgr.fernet.encrypt(json_bytes)
(tmp_path / "seedpass_entries_db.json.enc").write_bytes(legacy_encrypted)
@pytest.mark.parametrize("iterations", [50_000, 100_000])
def test_migrate_iterations(tmp_path, monkeypatch, iterations):
_setup_legacy_file(tmp_path, iterations)
new_key = base64.urlsafe_b64encode(b"B" * 32)
mgr = EncryptionManager(new_key, tmp_path)
vault = Vault(mgr, tmp_path)
prompts: list[int] = []
def fake_prompt(_msg: str) -> str:
prompts.append(1)
return TEST_PASSWORD
monkeypatch.setattr(enc_module, "prompt_existing_password", fake_prompt)
monkeypatch.setattr(vault_module, "prompt_existing_password", fake_prompt)
monkeypatch.setattr("builtins.input", lambda *_a, **_k: "2")
calls: list[int] = []
orig_derive = enc_module._derive_legacy_key_from_password
def tracking_derive(password: str, iterations: int = 100_000) -> bytes:
calls.append(iterations)
return orig_derive(password, iterations=iterations)
monkeypatch.setattr(enc_module, "_derive_legacy_key_from_password", tracking_derive)
vault.load_index()
# Loading again should not prompt for password or attempt legacy counts
vault.load_index()
assert prompts == [1]
expected = [50_000] if iterations == 50_000 else [50_000, 100_000]
assert calls == expected
cfg = ConfigManager(vault, tmp_path)
assert cfg.get_kdf_iterations() == iterations
content = (tmp_path / "seedpass_entries_db.json.enc").read_bytes()
assert content.startswith(b"V2:")