元素不可见错误(无法单击元素)

Question

我想点击一个单选按钮,出现在网页上.代码如下:

HTML代码:

<div class="small-checkbox red-theme raleway-regular text-muted2 position-relative">

        <div class="city-checkbox inline-block position-relative" ng-class="{'rounded-checkbox': main.current_city_id == 1, 'mb-20': main.ifDeviceIsPhone}">
            <label class="mdl-radio mdl-js-radio mdl-js-ripple-effect mh-20" for="mumbaiCity" ng-class="{'is-checked' : main.current_city_id == 1}">
                <input type="radio" id="mumbaiCity" class="mdl-radio__button position-relative vertical-middle" name="city" value="1" ng-click="main.setCity('Mumbai', 1)">
                <span class="mdl-radio__label position-relative font15"><img class="city-icon" src="../../../assets/img/cities/mumbai-icon.png">Mumbai</span>
            </label>
        </div>
</div>

Tesstcase:

// demo-test.js
describe('Protractor Demo App', function() {
    jasmine.DEFAULT_TIMEOUT_INTERVAL = 10000000;

    it('check item count', function() {
        browser.get('<link>');
        element(by.id('mumbaiCity')).click();
    });

});

此测试通过错误:

1)量角器演示App检查项目计数

信息:

失败:元素不可见

我也尝试过:

element(by.css('[ng-click="main.setCity('Mumbai', 1)"]')).click();

它给出了错误:

[16:16:26] E/launcher - 错误:SyntaxError:missing)参数列表后面

请建议单选按钮如何点击？

Answer 1

这在使用硒的测试自动化中是一个相当普遍的问题.

以下是常见的解决方案:

• 确保您要单击的元素实际可见.有时您需要在页面上执行额外操作以使元素可见.例如,打开下拉菜单以显示子菜单或打开菜单

• 等待元素的可见性:

  var EC = protractor.ExpectedConditions;
  var mumbaiCity = element(by.id('mumbaiCity'));
  browser.wait(EC.visibilityOf(mumbaiCity), 5000);
  mumbaiCity.click();
  

• 还有另一个具有相同元素的元素id实际上是不可见的.在这种情况下,您需要改进定位器以匹配此特定元素.例如:

  element(by.css(".city-checkbox #mumbaiCity")).click();
  element(by.css(".city-checkbox input[ng-click*=Mumbai]")).click();
  

• 或者,如果你有多个元素匹配相同的定位-你可以"过滤"出了可见的元素:

  var mumbaiCity = element.all(by.id('mumbaiCity')).filter(function (elm) {
      return elm.isDisplayed().then(function (isDisplayed) {
          return isDisplayed;
      });
  }).first();
  mumbaiCity.click();
  

• 移动到元素,然后单击通过browser.actions():

  var mumbaiCity = element(by.id('mumbaiCity'));
  browser.actions().mouseMove(mumbaiCity).click().perform();
  

• 滚动到元素的视图,然后单击:

  var mumbaiCity = element(by.id('mumbaiCity'));
  browser.executeScript("arguments[0].scrollIntoView();", mumbaiCity.getWebElement());
  mumbaiCity.click();
  

• 点击通过javascript(谨防差异):

  var mumbaiCity = element(by.id('mumbaiCity'));
  browser.executeScript("arguments[0].click();", mumbaiCity.getWebElement());
  

• 有时,您只需要最大化浏览器窗口:

  browser.driver.manage().window().maximize();