如何在Selenium [C#]中添加单个等待两个不同的元素

问题描述 投票:1回答:3

我的应用程序中有两种不同的形式,表单输入数据加载可以使用UI中可用的预定义模板完成(即输入文本字段值将根据模板选择预先填充)。当数据加载发生时,不会发生元素渲染,只会填充输入字段值。为了确认数据加载,我使用等待如下

var wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(60));

wait.Until(x => x.FindElement(By.XPath(Element1_FieldXPath)).GetAttribute("value").Length > 1);

在任何时候,只有Form1或Form2可见。因此,我需要确认Form1或Form2中的数据加载。所以,我需要编写一个通用方法来处理这种情况,我遇到了以下解决方案,

public bool IsDataLoadingCompleted()
{
   var wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(60));

   try
   {
       wait.Until(x => x.FindElement(By.XPath(Form1_FieldXPath)).GetAttribute("value").Length > 1);
       return true;
   }
   catch (TimeoutException)
   {
       try
       {
           wait.Until(x => x.FindElement(By.XPath(Form2_FieldXPath)).GetAttribute("value").Length > 1);
           return true;
       }
       catch (TimeoutException)
       {
           return false;
       }
   }      
}

在我的解决方案中,最糟糕的情况是等待时间是120s,当form2在UI中可见时。我需要用单次等待而不是双等待来解决上述问题。

有没有其他方法可以用最少的等待时间来解决问题?

示例HTML:

Form1 - Field1 HTML:

<div class="form-group field field-string">
    <label class="control-label" for="root_employeeName">Employee name</label>
    <input class="form-control" id="root_employeeName" label="Employee name" placeholder="" type="text" value="">
</div>

Form2 - Field1 HTML:

<div class="form-group field field-string">
    <label class="control-label" for="root_employeeAddress">Employee Address</label>
    <input class="form-control" id="root_employeeAddress" label="Employee Address" placeholder="" type="text" value="">
</div>
c# selenium selenium-webdriver css-selectors webdriverwait
3个回答
1
投票

您可以用逗号分隔CssSelectors来构造OR逻辑,您可以使用以下任一解决方案:

  • CSS_SELECTOR Anew WebDriverWait(_driver, TimeSpan.FromSeconds(120)).Until(ExpectedConditions.ElementToBeClickable(By.CssSelector('#root_employeeName, #root_employeeAddress')));
  • CSS_SELECTOR Bnew WebDriverWait(_driver, TimeSpan.FromSeconds(120)).Until(ExpectedConditions.ElementToBeClickable(By.CssSelector("label[for='root_employeeName'], label[for='root_employeeAddress']")));
  • 你可以在Groups of selectors找到参考

工作守则:

public bool IsDataLoadingCompleted(){

    var wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(60));
    try
    {
        wait.Until(x => x.FindElement(By.CssSelector("[label='Form1_Field'],[label='Form1_Field']")).GetAttribute("value").Length > 1);
        return true;
    }
    catch (TimeoutException)
    {
        return false;
    }
}

1
投票

我假设一个表单总是显示,定位器有一个静态id

var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(60));
wait.Until(ExpectedConditions.ElementExists(By.CssSelector("input[class='form-control']")))
string elementid = FindElement(By.CssSelector("input[class='form-control']")).GetAttribute("id") // or GetAttribute("label") 
if(elementid=="root_employeeName"){
 // do your action here if name form is displayed
}
else if(elementid=="root_employeeAddress"){
// do you action here if Address form is displayed
}

1
投票

您可以通过使用并行运行的任务来解决此问题。所需的代码看起来如下所示,Task.WaitAny就是这样做的。

public static bool WaitUntilOneFormLoaded(IWebDriver driver)
{
    var task1 = IsFormLoadedAsync(driver, "//some/xpath1");
    var task2 = IsFormLoadedAsync(driver, "//some/xpath2");
    Task.WaitAny(task1, task2);
    var completedTask = Task.WaitAny(task1, task2);
    switch (completedTask)
    {
        case 0: return task1.Result;
        case 1: return task2.Result;
        default: return false; // Timeout
    }
}

public static Task<bool> IsFormLoadedAsync(IWebDriver driver, string xpath)
{
    return Task.Run(() =>
    {
        try
        {
            var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(60));
            wait.Until(x => driver.FindElement(By.XPath(xpath)).GetAttribute("value").Length > 1);
            return true;
        }
        catch (TimeoutException)
        {
            return false;
        }
    });
}
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