"""Unit tests for process management functions."""
import contextlib
from pathlib import Path
from unittest.mock import patch
from simplenote_mcp.server.server import (
cleanup_pid_file as remove_pid_file,
)
from simplenote_mcp.server.server import (
write_pid_file,
)
class TestProcessManagement:
"""Tests for process management functions."""
def test_write_pid_file(self):
"""Test writing the PID file."""
# Mock PID file path
test_pid_path = Path("/tmp/test_server.pid") # noqa: S108
with (
patch("simplenote_mcp.server.server.PID_FILE_PATH", test_pid_path),
patch("os.getpid", return_value=12345),
):
write_pid_file()
# Verify the PID was written correctly
assert test_pid_path.exists()
assert test_pid_path.read_text(encoding="utf-8") == "12345"
# Clean up
if test_pid_path.exists():
test_pid_path.unlink()
def test_write_pid_file_error(self):
"""Test error handling when writing the PID file."""
with (
patch("os.getpid", return_value=12345),
patch("builtins.open", side_effect=PermissionError("Permission denied")),
contextlib.suppress(PermissionError),
):
# Should not raise exception
write_pid_file()
def test_cleanup_pid_file(self):
"""Test cleaning up the PID file."""
# Create a temporary PID file
test_pid_path = Path("/tmp/test_server.pid") # noqa: S108
test_alt_pid_path = Path("/tmp/test_server_alt.pid") # noqa: S108
test_pid_path.write_text("12345", encoding="utf-8")
test_alt_pid_path.write_text("12345", encoding="utf-8")
with (
patch("simplenote_mcp.server.server.PID_FILE_PATH", test_pid_path),
patch("simplenote_mcp.server.server.ALT_PID_FILE_PATH", test_alt_pid_path),
):
remove_pid_file()
# Verify both files were removed
assert not test_pid_path.exists()
assert not test_alt_pid_path.exists()
def test_cleanup_pid_file_nonexistent(self):
"""Test cleaning up a nonexistent PID file."""
test_pid_path = Path("/tmp/nonexistent_pid_file.pid") # noqa: S108
test_alt_pid_path = Path("/tmp/nonexistent_alt_pid_file.pid") # noqa: S108
# Ensure the files don't exist
if test_pid_path.exists():
test_pid_path.unlink()
if test_alt_pid_path.exists():
test_alt_pid_path.unlink()
with (
patch("simplenote_mcp.server.server.PID_FILE_PATH", test_pid_path),
patch("simplenote_mcp.server.server.ALT_PID_FILE_PATH", test_alt_pid_path),
):
remove_pid_file()
def test_cleanup_pid_file_error(self):
"""Test error handling when cleaning up the PID file."""
with (
patch("pathlib.Path.exists", return_value=True),
patch(
"pathlib.Path.unlink", side_effect=PermissionError("Permission denied")
),
):
# Should not raise exception - function handles errors gracefully
remove_pid_file()
def test_setup_signal_handlers(self):
"""Test setting up signal handlers."""
# This test is skipped as setup_signal_handlers doesn't exist
# The signal handling is done directly in the main function
pass
def test_signal_handler(self):
"""Test the signal handler function."""
# Since signal_handler is defined inside setup_signal_handlers,
# we'll test that setup_signal_handlers can be called
from simplenote_mcp.server.server import setup_signal_handlers
# Test that signal setup can be called without errors
with patch("simplenote_mcp.server.server.logger"):
# This should not raise an exception
setup_signal_handlers()
