Selenium WebDriver - 测试元素是否存在 [英] Selenium WebDriver - Test if element is present

问题描述

有没有办法测试元素是否存在？任何findElement方法都会以异常结束，但这不是我想要的，因为它可能是一个元素不存在而且没关系，这不是测试的失败，因此异常不能成为解决方案。

我发现这篇文章： Selenium c＃Webdriver：等到元素存在
但这是针对C＃而我不是很擅长。任何人都可以将代码翻译成Java吗？我很抱歉，我在Eclipse中尝试过，但我没有把它直接用于Java代码。

这是代码：

  public static class WebDriverExtensions {
 public static IWebElement FindElement（this IWebDriver driver，By by，int timeoutInSeconds）{
 
 if（timeoutInSeconds> 0）{
 var wait = new WebDriverWait（driver，TimeSpan.FromSeconds（timeoutInSeconds））; 
返回wait.Until（drv => drv.FindElement（by））; 
} 
 
返回driver.FindElement（by）; 
} 
} 
  

解决方案

使用 findElements 而不是 findElement 。

<$ c $如果找不到匹配的元素而不是异常，则c> findElements 将返回一个空列表。

要检查元素是否存在，可以尝试这个

 布尔值isPresent = driver.findElements（By.yourLocator）.size（）> 0 
  

如果找到至少一个元素，则返回true，如果不存在则返回false。 / p>

is there a way how to test if an element is present? Any findElement method would end in an exception, but that is not what I want, because it can be that an element is not present and that is okay, that is not a fail of the test, so an exception can not be the solution.

I've found this post: Selenium c# Webdriver: Wait Until Element is Present But this is for C# and I am not very good at it. Can anyone translate the code into Java? I am sorry guys, I tried it out in Eclipse but I don't get it right into Java code.

This is the code:

public static class WebDriverExtensions{
    public static IWebElement FindElement(this IWebDriver driver, By by, int timeoutInSeconds){

        if (timeoutInSeconds > 0){
            var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(timeoutInSeconds));
            return wait.Until(drv => drv.FindElement(by));
        }

        return driver.FindElement(by);
    }
}

解决方案

Use findElements instead of findElement.

findElements will return an empty list if no matching elements are found instead of an exception.

To check that an element is present, you could try this

Boolean isPresent = driver.findElements(By.yourLocator).size() > 0

This will return true if at least one element is found and false if it does not exist.

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