mirror of
https://github.com/kuhyx/screen-locker.git
synced 2026-07-04 13:23:13 +02:00
Krzysztof kuhy Rudnicki
cd3a3e21cb
- Set oom_score_adj=1000 in git hooks so OOM killer targets pre-commit first, never crashing the PC - Cap Node.js heap to 512MB for eslint/prettier/vitest - Remove broken systemd-run cgroup wrapper (didn't work) - cppcheck: process files one-at-a-time, --check-level=normal - pytest: run packages sequentially in separate subprocesses - Remove --force from cppcheck (exponential memory on #ifdef combos)
477 lines
15 KiB
Python
477 lines
15 KiB
Python
"""Tests for screen_locker initialization, logging, and basic operations."""
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from __future__ import annotations
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from datetime import datetime, timezone
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import json
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import tkinter as tk
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from typing import TYPE_CHECKING, Any
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from unittest.mock import MagicMock, patch
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import pytest
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from python_pkg.screen_locker.screen_lock import _assert_not_under_pytest
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from python_pkg.screen_locker.tests.conftest import create_locker
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if TYPE_CHECKING:
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from pathlib import Path
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class TestAssertNotUnderPytest:
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"""Tests for the _assert_not_under_pytest runtime guard."""
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def test_raises_when_tk_is_real(self) -> None:
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"""Guard fires if tk.Tk is the real tkinter class under pytest."""
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with (
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patch("python_pkg.screen_locker.screen_lock.tk", tk),
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pytest.raises(RuntimeError, match="SAFETY"),
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):
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_assert_not_under_pytest()
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def test_silent_when_tk_is_mocked(self) -> None:
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"""Guard stays silent when tk is already mocked (normal test run)."""
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_assert_not_under_pytest()
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class TestScreenLockerInit:
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"""Tests for ScreenLocker initialization."""
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def test_init_demo_mode(
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self, mock_tk: MagicMock, mock_sys_exit: MagicMock, tmp_path: Path
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) -> None:
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"""Test initialization in demo mode."""
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locker = create_locker(mock_tk, tmp_path, demo_mode=True)
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assert locker.demo_mode is True
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assert locker.lockout_time == 10
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mock_sys_exit.assert_not_called()
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def test_init_production_mode(
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self, mock_tk: MagicMock, mock_sys_exit: MagicMock, tmp_path: Path
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) -> None:
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"""Test initialization in production mode."""
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locker = create_locker(mock_tk, tmp_path, demo_mode=False)
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assert locker.demo_mode is False
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assert locker.lockout_time == 1800
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mock_sys_exit.assert_not_called()
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def test_init_exits_if_logged_today(
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self, mock_tk: MagicMock, mock_sys_exit: MagicMock, tmp_path: Path
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) -> None:
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"""Test that init exits early if workout logged today."""
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mock_sys_exit.side_effect = SystemExit(0)
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with pytest.raises(SystemExit):
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create_locker(mock_tk, tmp_path, has_logged=True)
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mock_sys_exit.assert_called_once_with(0)
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class TestHasLoggedToday:
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"""Tests for has_logged_today method."""
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def test_no_log_file(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test when log file doesn't exist."""
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log_file = tmp_path / "workout_log.json"
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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assert locker.has_logged_today() is False
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def test_empty_log_file(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test when log file is empty/invalid JSON."""
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log_file = tmp_path / "workout_log.json"
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log_file.write_text("")
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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assert locker.has_logged_today() is False
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def test_invalid_json(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test when log file contains invalid JSON."""
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log_file = tmp_path / "workout_log.json"
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log_file.write_text("{invalid json}")
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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assert locker.has_logged_today() is False
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def test_today_logged(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test when today's workout is logged with valid HMAC."""
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log_file = tmp_path / "workout_log.json"
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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log_file.write_text(
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json.dumps({today: {"workout": "data", "hmac": "valid"}}),
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)
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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with patch(
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"python_pkg.screen_locker.screen_lock.verify_entry_hmac",
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return_value=True,
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):
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assert locker.has_logged_today() is True
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def test_today_logged_invalid_hmac(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test rejects entry when HMAC verification fails."""
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log_file = tmp_path / "workout_log.json"
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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log_file.write_text(
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json.dumps({today: {"workout": "data", "hmac": "tampered"}}),
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)
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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with patch(
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"python_pkg.screen_locker.screen_lock.verify_entry_hmac",
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return_value=False,
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):
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assert locker.has_logged_today() is False
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def test_today_unsigned_entry_no_hmac_key(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Accept unsigned entry when HMAC key is unavailable."""
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log_file = tmp_path / "workout_log.json"
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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log_file.write_text(
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json.dumps({today: {"workout": "data"}}),
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)
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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with (
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patch(
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"python_pkg.screen_locker.screen_lock.verify_entry_hmac",
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return_value=False,
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),
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patch(
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"python_pkg.screen_locker.screen_lock._load_hmac_key",
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return_value=None,
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),
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):
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assert locker.has_logged_today() is True
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def test_today_unsigned_entry_with_hmac_key(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Reject unsigned entry when HMAC key IS available."""
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log_file = tmp_path / "workout_log.json"
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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log_file.write_text(
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json.dumps({today: {"workout": "data"}}),
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)
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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with (
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patch(
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"python_pkg.screen_locker.screen_lock.verify_entry_hmac",
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return_value=False,
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),
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patch(
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"python_pkg.screen_locker.screen_lock._load_hmac_key",
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return_value=b"secret-key",
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),
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):
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assert locker.has_logged_today() is False
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def test_other_day_logged(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test when only other days are logged."""
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log_file = tmp_path / "workout_log.json"
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log_file.write_text(json.dumps({"2020-01-01": {"workout": "data"}}))
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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assert locker.has_logged_today() is False
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class TestSaveWorkoutLog:
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"""Tests for save_workout_log method."""
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def test_save_to_new_file(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test saving to a new log file includes HMAC."""
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log_file = tmp_path / "workout_log.json"
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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locker.workout_data = {"type": "running"}
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with patch(
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"python_pkg.screen_locker.screen_lock.compute_entry_hmac",
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return_value="abc123",
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):
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locker.save_workout_log()
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assert log_file.exists()
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with log_file.open() as f:
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data: dict[str, Any] = json.load(f)
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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assert today in data
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assert data[today]["workout_data"]["type"] == "running"
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assert data[today]["hmac"] == "abc123"
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def test_save_to_new_file_no_hmac_key(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test saving without HMAC key produces unsigned entry."""
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log_file = tmp_path / "workout_log.json"
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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locker.workout_data = {"type": "running"}
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with patch(
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"python_pkg.screen_locker.screen_lock.compute_entry_hmac",
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return_value=None,
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):
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locker.save_workout_log()
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with log_file.open() as f:
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data: dict[str, Any] = json.load(f)
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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assert "hmac" not in data[today]
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def test_save_to_existing_file(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test saving appends to existing log file."""
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log_file = tmp_path / "workout_log.json"
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log_file.write_text(json.dumps({"2020-01-01": {"old": "data"}}))
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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locker.workout_data = {"type": "strength"}
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with patch(
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"python_pkg.screen_locker.screen_lock.compute_entry_hmac",
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return_value="sig",
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):
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locker.save_workout_log()
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with log_file.open() as f:
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data: dict[str, Any] = json.load(f)
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assert "2020-01-01" in data
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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assert today in data
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def test_save_with_corrupted_existing_file(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test saving when existing file is corrupted."""
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log_file = tmp_path / "workout_log.json"
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log_file.write_text("not valid json")
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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locker.workout_data = {"type": "running"}
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with patch(
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"python_pkg.screen_locker.screen_lock.compute_entry_hmac",
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return_value="sig",
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):
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locker.save_workout_log()
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with log_file.open() as f:
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data: dict[str, Any] = json.load(f)
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today = datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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assert today in data
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def test_save_with_write_error(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test saving handles write errors gracefully."""
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log_file = tmp_path / "nonexistent_dir" / "workout_log.json"
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locker = create_locker(mock_tk, tmp_path)
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locker.log_file = log_file
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locker.workout_data = {"type": "running"}
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with patch(
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"python_pkg.screen_locker.screen_lock.compute_entry_hmac",
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return_value="sig",
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):
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# Should not raise, just log warning
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locker.save_workout_log()
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class TestRun:
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"""Tests for run method."""
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def test_run_starts_mainloop(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test run starts the tkinter mainloop."""
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locker = create_locker(mock_tk, tmp_path)
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locker.run()
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locker.root.mainloop.assert_called_once()
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class TestMainEntry:
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"""Tests for main entry point."""
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def test_main_demo_mode_default(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test main defaults to demo mode."""
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locker = create_locker(mock_tk, tmp_path, demo_mode=True)
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assert locker.demo_mode is True
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def test_main_production_mode_flag(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test main with --production flag."""
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locker = create_locker(mock_tk, tmp_path, demo_mode=False)
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assert locker.demo_mode is False
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class TestAdjustShutdownTimeLater:
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"""Tests for _adjust_shutdown_time_later method."""
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def test_adjust_shutdown_time_later_success(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test _adjust_shutdown_time_later adds hours successfully."""
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locker = create_locker(mock_tk, tmp_path)
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object.__setattr__(
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locker, "_read_shutdown_config", MagicMock(return_value=(21, 22, 8))
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)
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object.__setattr__(
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locker, "_write_shutdown_config", MagicMock(return_value=True)
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)
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result = locker._adjust_shutdown_time_later()
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assert result is True
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locker._write_shutdown_config.assert_called_once_with(23, 23, 8, restore=True)
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def test_adjust_shutdown_time_later_caps_at_23(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test _adjust_shutdown_time_later caps hours at 23."""
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locker = create_locker(mock_tk, tmp_path)
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object.__setattr__(
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locker, "_read_shutdown_config", MagicMock(return_value=(22, 23, 8))
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)
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object.__setattr__(
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locker, "_write_shutdown_config", MagicMock(return_value=True)
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)
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result = locker._adjust_shutdown_time_later()
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assert result is True
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# 22+2=24 capped to 23, 23+2=25 capped to 23
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locker._write_shutdown_config.assert_called_once_with(23, 23, 8, restore=True)
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def test_adjust_shutdown_time_later_no_config(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test _adjust_shutdown_time_later returns False if config missing."""
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locker = create_locker(mock_tk, tmp_path)
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object.__setattr__(
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locker, "_read_shutdown_config", MagicMock(return_value=None)
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)
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result = locker._adjust_shutdown_time_later()
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assert result is False
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def test_adjust_shutdown_time_later_oserror(
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self,
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mock_tk: MagicMock,
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mock_sys_exit: MagicMock,
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tmp_path: Path,
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) -> None:
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"""Test _adjust_shutdown_time_later handles OSError."""
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locker = create_locker(mock_tk, tmp_path)
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object.__setattr__(
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locker,
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"_read_shutdown_config",
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MagicMock(side_effect=OSError("permission denied")),
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)
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result = locker._adjust_shutdown_time_later()
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assert result is False
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class TestGrabInput:
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"""Tests for _grab_input method."""
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def test_production_global_grab_tcl_error(
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self, mock_tk: MagicMock, mock_sys_exit: MagicMock, tmp_path: Path
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) -> None:
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"""Test production mode falls back when global grab fails."""
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mock_tk.Tk.return_value.grab_set_global.side_effect = tk.TclError("grab failed")
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locker = create_locker(mock_tk, tmp_path, demo_mode=False)
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assert locker.demo_mode is False
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