greetd-moongreet/tests/test_power.py
nevaforget 64f08d7e8b Harden greeter against threading issues, path traversal, and edge cases
Security:
- Fix path traversal in _save/_load_last_session by rejecting usernames
  starting with dot (blocks '..' and hidden file creation)
- Add avatar file size limit (10 MB) to prevent DoS via large ~/.face
- Add session_name length validation on write (symmetric with read)
- Add payload size check to send_message (symmetric with recv_message)
- Set log level to INFO in production (was DEBUG)

Quality:
- Eliminate main-thread blocking on user switch: _cancel_pending_session
  now sets a cancellation event and closes the socket instead of doing
  blocking IPC. The login worker checks the event after each step.
- Move power actions (reboot/shutdown) to background threads
- Catch TimeoutExpired in addition to CalledProcessError for power actions
- Consolidate socket cleanup in _login_worker via finally block, remove
  redundant _close_greetd_sock calls from error callbacks
- Fix _select_initial_user to return False for GLib.idle_add deregistration
- Fix context manager leak in resolve_wallpaper_path on exception
- Pass Config object to GreeterWindow instead of loading it twice
2026-03-26 16:25:13 +01:00

62 lines
1.9 KiB
Python

# ABOUTME: Tests for power actions — reboot and shutdown via loginctl.
# ABOUTME: Uses mocking to avoid actually calling system commands.
import subprocess
from unittest.mock import patch, call
import pytest
from moongreet.power import reboot, shutdown, POWER_TIMEOUT
class TestReboot:
"""Tests for the reboot power action."""
@patch("moongreet.power.subprocess.run")
def test_calls_loginctl_reboot(self, mock_run) -> None:
reboot()
mock_run.assert_called_once_with(
["loginctl", "reboot"], check=True, timeout=POWER_TIMEOUT
)
@patch("moongreet.power.subprocess.run")
def test_raises_on_failure(self, mock_run) -> None:
mock_run.side_effect = subprocess.CalledProcessError(1, "loginctl")
with pytest.raises(subprocess.CalledProcessError):
reboot()
@patch("moongreet.power.subprocess.run")
def test_raises_on_timeout(self, mock_run) -> None:
mock_run.side_effect = subprocess.TimeoutExpired("loginctl", POWER_TIMEOUT)
with pytest.raises(subprocess.TimeoutExpired):
reboot()
class TestShutdown:
"""Tests for the shutdown power action."""
@patch("moongreet.power.subprocess.run")
def test_calls_loginctl_poweroff(self, mock_run) -> None:
shutdown()
mock_run.assert_called_once_with(
["loginctl", "poweroff"], check=True, timeout=POWER_TIMEOUT
)
@patch("moongreet.power.subprocess.run")
def test_raises_on_failure(self, mock_run) -> None:
mock_run.side_effect = subprocess.CalledProcessError(1, "loginctl")
with pytest.raises(subprocess.CalledProcessError):
shutdown()
@patch("moongreet.power.subprocess.run")
def test_raises_on_timeout(self, mock_run) -> None:
mock_run.side_effect = subprocess.TimeoutExpired("loginctl", POWER_TIMEOUT)
with pytest.raises(subprocess.TimeoutExpired):
shutdown()