anchor.diff:    };
   
     testScript = ''
  +    import re
  +
       start_all()
  +
  +    # Parse the package path out of the systemd unit, as we cannot
  +    # access the final package, that is overriden inside the module,
  +    # by any other means.
  +    pattern = re.compile(r"path=(?P<path>[\/a-z0-9-.]+)\/bin\/hass")
  +    response = hass.execute("systemctl show -p ExecStart home-assistant.service")[1]
  +    match = pattern.search(response)
  +    package = match.group('path')
   
       hass.wait_for_unit("home-assistant.service")
   
  
positive.code: 
        # tests loading components by overriding the package
        package = (pkgs.home-assistant.override {
          extraComponents = [ "zha" ];
        }).overrideAttrs (oldAttrs: {
          doInstallCheck = false;
  
negative.code: 
      with subtest("Check the lovelace config is copied because lovelaceConfigWritable = true"):
          hass.succeed("test -f ${configDir}/ui-lovelace.yaml")
  
      with subtest("Check extraComponents and extraPackages are considered from the package"):
          hass.succeed(f"grep -q 'colorama' {package}/extra_packages")
          hass.succeed(f"grep -q 'zha' {package}/extra_components")
  
      with subtest("Check extraComponents and extraPackages are considered from the module"):
          hass.succeed(f"grep -q 'psycopg2' {package}/extra_packages")
          hass.succeed(f"grep -q 'wake_on_lan' {package}/extra_components")
  
      with subtest("Check that Home Assistant's web interface and API can be reached"):
          hass.wait_until_succeeds("journalctl -u home-assistant.service | grep -q 'Home Assistant initialized in'")
  