.alerts.getText() 建议编辑

                    .alerts.getText([callback])
                

module.exports = {
  'get open alert text': function (browser) {
    browser
      .alerts.getText(function (result) {
        console.log('text on open alert:', result.value);
      });
  },

  'get open alert text with ES6 async/await': async function (browser) {
    const alertText = await browser.alerts.getText();
    console.log('text on open alert:', alertText);
  }
};