使用webdriver.js，如何获取a的选定选项 <select> ？

Question

Plenty of answers for java and C#, but I can't find how to do it in javascript. Seems the API are different...

Answer 1

yeah it is possible. Lets say we have the following select element:

<select name="test" id="select">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select>

You get the current selected option by using getValue and you can change the selection by using click. Here is an simple example:

var webdriverjs = require('webdriverjs'),
    client      = webdriverjs.remote({desiredCapabilities:{browserName:'phantomjs'}}).init();

client
    .url('http://localhost:8080')
    .getValue('#select',function(err,val){
        console.log(val); // will output "1"
    })
    .click('//*[@id="select"]/option[3]')
    .getValue('#select',function(err,val){
        console.log(val); // will output "3"
    })
    .end();

Hope that helps.

cheers

Answer 2

For those who are just looking for pure WebDriverJS solution and not any framework specific like webdriver.io or protractor, here is the code,

var element = driver.findElement(wd.By.id('mySelect'));
element.getAttribute('value').then(function(selected) {
   if(selected === 'the one I expected') {
       done();
   } 
   else {
     done(new Error('something went wrong');
   }
});

Answer 3

If you want the option element, use the return value of then callback:

driver.findElement(By.css('select[name=eventTypes]'))
  .then((select) => {
    return select.getAttribute('value').then((value) => {
      return {select: select, value: value};
    });
  })
  .then((data) => {
    return data.select.findElement(By.css('option[value="'+data.value+'"]'));
  })
  .then((option) => {
    //do something.
  });

Answer 4

If you have this in your html for an example

<select name="test" id="myId">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select>

You can select for a example option 3 like this

var driver = new firefox.Driver();
driver.findElement(By.css('#myId>option:nth-child(2)')).click();

Works for me and I am using selenium-webdriver with JavaScript