'If the value corresponds to a label (but not to an option value), none
of the options are selected.'

def test_render_value_label(self):

    self.check_html(self.widget(choices=self.beatles), 'beatles', ['John'], html='<select    multiple="multiple"    name="beatles">\n                                                <option    value="J">John</option>\n                                                <option    value="P">Paul</option>\n                                                <option    value="G">George</option>\n                                                <option    value="R">Ringo</option>\n                                                </select>')
