old_contents: """
  tests.test_bootstrap
  ~~~~~~~~~~~~~~~~~~~~
  
  Tests bootstrap.
  """
  # pylint: disable=too-many-public-methods,protected-access
  import tempfile
  import unittest
  from unittest import mock
  
  from homeassistant import bootstrap
  import homeassistant.util.dt as dt_util
  
  from tests.common import mock_detect_location_info
  
  
  class TestBootstrap(unittest.TestCase):
      """ Test the bootstrap utils. """
  
      def setUp(self):
          self.orig_timezone = dt_util.DEFAULT_TIME_ZONE
  
      def tearDown(self):
          dt_util.DEFAULT_TIME_ZONE = self.orig_timezone
  
      def test_from_config_file(self):
          components = ['browser', 'conversation', 'script']
          with tempfile.NamedTemporaryFile() as fp:
              for comp in components:
                  fp.write('{}:\n'.format(comp).encode('utf-8'))
              fp.flush()
  
              with mock.patch('homeassistant.util.location.detect_location_info',
                              mock_detect_location_info):
                  hass = bootstrap.from_config_file(fp.name)
  
              components.append('group')
  
              self.assertEqual(sorted(components),
                               sorted(hass.config.components))
  
new_contents: """
  tests.test_bootstrap
  ~~~~~~~~~~~~~~~~~~~~
  
  Tests bootstrap.
  """
  # pylint: disable=too-many-public-methods,protected-access
  import os
  import tempfile
  import unittest
  from unittest import mock
  
  from homeassistant import core, bootstrap
  from homeassistant.const import __version__
  import homeassistant.util.dt as dt_util
  
  from tests.common import mock_detect_location_info
  
  
  class TestBootstrap(unittest.TestCase):
      """ Test the bootstrap utils. """
  
      def setUp(self):
          self.orig_timezone = dt_util.DEFAULT_TIME_ZONE
  
      def tearDown(self):
          dt_util.DEFAULT_TIME_ZONE = self.orig_timezone
  
      def test_from_config_file(self):
          components = ['browser', 'conversation', 'script']
          with tempfile.NamedTemporaryFile() as fp:
              for comp in components:
                  fp.write('{}:\n'.format(comp).encode('utf-8'))
              fp.flush()
  
              with mock.patch('homeassistant.util.location.detect_location_info',
                              mock_detect_location_info):
                  hass = bootstrap.from_config_file(fp.name)
  
              components.append('group')
  
              self.assertEqual(sorted(components),
                               sorted(hass.config.components))
  
      def test_remove_lib_on_upgrade(self):
          with tempfile.TemporaryDirectory() as config_dir:
              version_path = os.path.join(config_dir, '.HA_VERSION')
              lib_dir = os.path.join(config_dir, 'lib')
              check_file = os.path.join(lib_dir, 'check')
  
              with open(version_path, 'wt') as outp:
                  outp.write('0.7.0')
  
              os.mkdir(lib_dir)
  
              with open(check_file, 'w'):
                  pass
  
              hass = core.HomeAssistant()
              hass.config.config_dir = config_dir
  
              self.assertTrue(os.path.isfile(check_file))
              bootstrap.process_ha_config_upgrade(hass)
              self.assertFalse(os.path.isfile(check_file))
  
      def test_not_remove_lib_if_not_upgrade(self):
          with tempfile.TemporaryDirectory() as config_dir:
              version_path = os.path.join(config_dir, '.HA_VERSION')
              lib_dir = os.path.join(config_dir, 'lib')
              check_file = os.path.join(lib_dir, 'check')
  
              with open(version_path, 'wt') as outp:
                  outp.write(__version__)
  
              os.mkdir(lib_dir)
  
              with open(check_file, 'w'):
                  pass
  
              hass = core.HomeAssistant()
              hass.config.config_dir = config_dir
  
              bootstrap.process_ha_config_upgrade(hass)
  
              self.assertTrue(os.path.isfile(check_file))
  
subject: Add tests for version upgrade