text: import os
  import sys
  from unittest.mock import MagicMock, patch
  
  from openslides.utils import main
  from openslides.utils.test import TestCase
  
  
  class TestFunctions(TestCase):
      @patch("openslides.utils.main.sys")
      def test_detect_openslides_type_unix(self, mock_sys):
          """
          Tests the return value on a unix system.
          """
          mock_sys.platform = "linux"
          self.assertEqual(main.detect_openslides_type(), main.UNIX_VERSION)
  
      @patch("openslides.utils.main.os.path.basename")
      @patch("openslides.utils.main.sys")
      def test_detect_openslides_type_win_portable(self, mock_sys, mock_os):
          """
          Tests the return value on a windows portable system.
          """
          mock_sys.platform = "win32"
          mock_os.return_value = "openslides.exe"
          self.assertEqual(main.detect_openslides_type(), main.WINDOWS_PORTABLE_VERSION)
  
      @patch("openslides.utils.main.os.path.basename")
      @patch("openslides.utils.main.sys")
      def test_detect_openslides_type_win(self, mock_sys, mock_os):
          """
          Tests the return value on a windows system.
          """
          mock_sys.platform = "win32"
          mock_os.return_value = "python"
          self.assertEqual(main.detect_openslides_type(), main.WINDOWS_VERSION)
  
      @patch("openslides.utils.main.detect_openslides_type")
      @patch("openslides.utils.main.os.path.expanduser")
      def test_get_default_settings_dir_unix(self, mock_expanduser, mock_detect):
          mock_expanduser.return_value = "/home/test/.config"
          self.assertEqual(
              main.get_default_settings_dir(main.UNIX_VERSION),
              "/home/test/.config/openslides",
          )
  
      @patch("openslides.utils.main.get_win32_app_data_dir")
      def test_get_default_settings_dir_win(self, mock_win):
          mock_win.return_value = "win32"
          self.assertEqual(
              main.get_default_settings_dir(main.WINDOWS_VERSION), "win32/openslides"
          )
  
      @patch("openslides.utils.main.get_win32_portable_dir")
      def test_get_default_settings_dir_portable(self, mock_portable):
          mock_portable.return_value = "portable"
          self.assertEqual(
              main.get_default_settings_dir(main.WINDOWS_PORTABLE_VERSION),
              "portable/openslides",
          )
  
      def test_get_local_settings_dir(self):
          self.assertEqual(
              main.get_local_settings_dir(), os.sep.join(("personal_data", "var"))
          )
  
      def test_setup_django_settings_module(self):
          main.setup_django_settings_module(
              "test_dir_dhvnghfjdh456fzheg2f/test_path_bngjdhc756dzwncshdfnx.py"
          )
  
          self.assertEqual(
              os.environ["DJANGO_SETTINGS_MODULE"], "test_path_bngjdhc756dzwncshdfnx"
          )
          self.assertEqual(sys.path[0], os.path.abspath("test_dir_dhvnghfjdh456fzheg2f"))
  
      @patch("openslides.utils.main.detect_openslides_type")
      def test_get_default_settings_context_portable(self, detect_mock):
          detect_mock.return_value = main.WINDOWS_PORTABLE_VERSION
          context = main.get_default_settings_context()
          self.assertEqual(
              context["openslides_user_data_dir"], "get_win32_portable_user_data_dir()"
          )
  
      def test_get_default_user_data_dir(self):
          self.assertIn(
              os.path.join(".local", "share"),
              main.get_default_user_data_dir(main.UNIX_VERSION),
          )
  
      @patch("openslides.utils.main.threading.Thread")
      @patch("openslides.utils.main.time")
      @patch("openslides.utils.main.webbrowser")
      def test_start_browser(self, mock_webbrowser, mock_time, mock_Thread):
          browser_mock = MagicMock()
          mock_webbrowser.get.return_value = browser_mock
  
          main.start_browser("http://localhost:8234")
  
          self.assertTrue(mock_Thread.called)
          inner_function = mock_Thread.call_args[1]["target"]
          inner_function()
          browser_mock.open.assert_called_with("http://localhost:8234")
  