def METHOD_NAME(self, mock_rand):
    self.xml_state.get_vagrant_config_virtualbox_guest_additions \
        .return_value = None
    expected_res = dedent('''
        config.vm.base_mac = "00163E010101"
        config.vm.synced_folder ".", "/vagrant", type: "rsync"
    ''').strip()
    assert self.disk_format.get_additional_vagrant_config_settings() == \
        expected_res