如何使用XPATH在JAVA中搜索带有Selenium Testing类的span

时间:2015-01-31 20:18:22

标签: java selenium xpath

我正在编写一段代码,希望我选择类amountCharged的范围并获取该范围的值以根据模拟值对其进行测试。我面临的问题是我似乎无法使用span选择XPath。我尝试了多种方法但仍然失败,我继续 W3Schools Stackoverflow 问题,但无法确定语法。

以下是我面临的错误:

org.openqa.selenium.TimeoutException: Timed out after 60 seconds waiting for text ('£163.06') to be present in element found by `By.xpath:`

 //span[contains(@class, 'amountCharged')]

正如您所看到的,我正在尝试将//span[contains(@class,'amountCharged')]用作XPATH,与使用&#34相同的问题;

/descendant::span[contains(@class, 'amountCharged')]

从父母DIV开始的HTML是:

    <div class="panelMessage instructional" params="">    Total:         
 <span class="amountCharged">£163.06</span> quoted on          
<span class="reservationTime">Tue, 29 Nov 2011 15:46 GMT</span> . </div>
    </div>        
<div class="panelContent hideFocus noneBlock  " tabindex="-1" data-  context="panelContent">

JAVA代码是:

   private static void elementShouldContain(String locator, String value, String errorMessage, long timeout) {
    String xpath = buildLocator(locator, "");
    WebDriverWait customWait = new WebDriverWait(webDriverInstance, timeout / 1000);
    try {
    customWait.until(ExpectedConditions.textToBePresentInElement(By.xpath(xpath), value));
    } catch (Exception e) {
        // Handles the specific exception, except that the message is null, in which case throws a regular SeleniumException
        if (errorMessage != null)
            throw new CustomSeleniumException(errorMessage, e);
        else
            throw new SeleniumException(e);
    }
}

我错过了什么,请帮忙。

谢谢

2 个答案:

答案 0 :(得分:5)

要牢记这一点:

  1. 在Firebug的Chrome调试器上测试xpath并不一定意味着selector将唯一地返回目标元素。可能有一些其他元素隐藏了相同的选择器,webdriver将无法找到该情况下的目标元素。出于调试目的,使用findElements a查看它返回的元素数。
  2. 元素加载问题如:可见性也可能是另一个问题。这就是为什么你需要确保元素存在和可见。使用explicit等待
  3. 尝试关注xpaths

    //span[@class='amountCharged']
    

    如果课程不是唯一的,并且您希望根据div找到span,则可以执行以下操作:

    //div[contains(@class,'panelMessage ')]//span[@class='amountCharged']
    

答案 1 :(得分:1)

根据您提到的错误,我认为您在textToBePresentInElement 下使用textToBePresentInElementLocatedExpectedConditions class或其他相关方法。

您也可以这样做:
1-使用Explicit Wait等待元素的可见性 2-检索文本
3-断言/比较文本的值:'£163.06'。

您可以按顺序尝试以下所有代码:

    String text_in_panel=null;
    try{
        //waiting 20 seconds for the visibility of the element
        WebDriverWait wait = new WebDriverWait(driver, 20);
        WebElement element = wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(@class, 'panelMessage')]/span[1]")));

        //Retrieving the text from the element
        text_in_panel = element.getText();
    }catch(Throwable e){
        System.err.println("Element is not visible: "+e.getMessage());
    }

    //Comparing the text with the hard-coded value
    if(text_in_panel.equals("£163.06"))
        System.out.println("Text matches");
    else
        System.err.println("Text doesn't match");

[或者您可以通过导入import junit.framework.Assert使用Assert类来断言值而不是比较它们;]

    //Assert the text with the hard-coded value
    try{
        Assert.assertEquals(text_in_panel, "£163.06");
        System.out.println("Text matches");
    }catch(Throwable e){
        System.err.println("Text doesn't match");
    }