selenium-webdriver - Selenium 找到 A 标签但 click() 没有效果？

Question

我有一个使用 WebObjects 构建的动态 Web 应用程序。我的测试代码试图找到一个链接。我在找到它之前做了一个 getPageSource() ，如下所示。

我成功找到了标签。然后我点击它。什么都没发生。找不到我在下一页上寻找的标签。

那么，一个标签如何让它不响应点击呢？它没有附加js。它在一个跨度内并围绕一个图像，但仅此而已。

当测试代码执行完毕后，我可以手动点击链接，我会看到下一页。最近怎么样？有任何想法吗？

 [java] [1374173126242]: Going to Schedule page
 [java] [1374173126260]: 
 [java] <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 [java] <html xmlns="http://www.w3.org/1999/xhtml"><head>
 [java]     <meta content="text/html; charset=utf-8" http-equiv="content-type" />
 [java]     <meta content="COM" name="keywords" />
 [java]     <title>APP!</title>
 [java]     <link href="/cgi-bin/WebObjects/APP.woa/_wr_/wodata=/Users/ME/Projects/APP/WebServerResources/APP/login.css" type="text/css" rel="stylesheet" />
 [java] 
 [java]     <link href="/cgi-bin/WebObjects/APP.woa/_wr_/wodata=/Users/ME/Projects/APP/WebServerResources/APP/APP.css" type="text/css" rel="stylesheet" />
 [java] 
 [java]   </head>
 [java]   <body>
 [java]     
 [java]     ( some bits removed . . . )
 [java]     <div id="landing_page_main" class="welcomeBox">
 [java]       <div class="main_cont">
 [java]         <div class="logo"><img src="/cgi-bin/WebObjects/APP.woa/_wr_/wodata=/Users/ME/Projects/APP/WebServerResources/APP/APP-live.png" alt="APP LIVE" /></div>
 [java]         <div class="table">
 [java]           <table width="100%" cellspacing="0" cellpadding="0" border="0">
 [java]             <tbody><tr>
 [java]               <td valign="middle" align="center">
 [java]                 <span title="Access My Schedule"><a name="19" class="access_my_schedule_link" href="/cgi-bin/WebObjects/APP.woa/wo/Tbrd5n8SsAGIL22d7hkPCM/2.19"><img width="74" border="0" height="64" src="/cgi-bin/WebObjects/APP.woa/_wr_/wodata=/Users/ME/Projects/APP/WebServerResources/APP/arrowRight.png" ismap="ismap" /></a></span>
 [java]               </td>
 [java]             </tr>
 [java]           </tbody></table>
 [java]         </div>
 [java]       </div>
 [java]     </div>
 [java]   
 [java] </body></html>
 [java] [1374173126320]: found element:
 [java]     [[FirefoxDriver: firefox on MAC (7ac7e5e2-d4e2-334b-9d99-2e6ddb7b7439)] -> class name: access_my_schedule_link]
 [java] [1374173126332]: element enabled? true
 [java] [1374173126342]: element selected? false
 [java] [1374173126362]: element displayed? true
 [java] [1374173126389]: element location: (620, 265)
 [java] [1374173126404]: element tagName: a
 [java] [1374173126431]: element text: 
 [java] Exception in thread "main" org.openqa.selenium.TimeoutException: Timed out after 10 seconds waiting for APPLiveDriver$4@337b4703
 [java] Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:33:32'
 [java] System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.6.8', java.version: '1.6.0_51'
 [java] Driver info: driver.version: APPLiveDriver
 [java]     at org.openqa.selenium.support.ui.FluentWait.timeoutException(FluentWait.java:259)
 [java]     at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:228)
 [java]     at APPLiveDriver.scheduleAndBack(Unknown Source)
 [java]     at APPLiveDriver.main(Unknown Source)
 [java] Caused by: org.openqa.selenium.NoSuchElementException: Unable to locate element: {"method":"class name","selector":"breadcrumb_home_link"}
 [java] Command duration or timeout: 9 milliseconds
 [java] For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
 [java] Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:33:32'
 [java] System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.6.8', java.version: '1.6.0_51'
 [java] Session ID: 7ac7e5e2-d4e2-334b-9d99-2e6ddb7b7439
 [java] Driver info: org.openqa.selenium.firefox.FirefoxDriver
 [java] Capabilities [{platform=MAC, acceptSslCerts=true, javascriptEnabled=true, browserName=firefox, rotatable=false, locationContextEnabled=true, version=21.0, cssSelectorsEnabled=true, databaseEnabled=true, handlesAlerts=true, browserConnectionEnabled=true, nativeEvents=false, webStorageEnabled=true, applicationCacheEnabled=true, takesScreenshot=true}]
 [java]     at sun.reflect.GeneratedConstructorAccessor14.newInstance(Unknown Source)
 [java]     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 [java]     at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
 [java]     at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:191)
 [java]     at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)
 [java]     at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:554)
 [java]     at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:307)
 [java]     at org.openqa.selenium.remote.RemoteWebDriver.findElementByClassName(RemoteWebDriver.java:388)
 [java]     at org.openqa.selenium.By$ByClassName.findElement(By.java:371)
 [java]     at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:299)
 [java]     at APPLiveDriver$4.apply(Unknown Source)
 [java]     at APPLiveDriver$4.apply(Unknown Source)
 [java]     at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:208)
 [java]     ... 2 more
 [java] Caused by: org.openqa.selenium.remote.ErrorHandler$UnknownServerException: Unable to locate element: {"method":"class name","selector":"breadcrumb_home_link"}
 [java] Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:33:32'
 [java] System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.6.8', java.version: '1.6.0_51'
 [java] Driver info: driver.version: unknown
 [java]     at <anonymous class>.FirefoxDriver.prototype.findElementInternal_(file:///var/folders/oZ/oZFKAiJ8FC80oMT1b--WME+++TQ/-Tmp-/anonymous4201752404452189319webdriver-profile/extensions/fxdriver@googlecode.com/components/driver_component.js:8444)
 [java]     at <anonymous class>.FirefoxDriver.prototype.findElement(file:///var/folders/oZ/oZFKAiJ8FC80oMT1b--WME+++TQ/-Tmp-/anonymous4201752404452189319webdriver-profile/extensions/fxdriver@googlecode.com/components/driver_component.js:8453)
 [java]     at <anonymous class>.DelayedCommand.prototype.executeInternal_/h(file:///var/folders/oZ/oZFKAiJ8FC80oMT1b--WME+++TQ/-Tmp-/anonymous4201752404452189319webdriver-profile/extensions/fxdriver@googlecode.com/components/command_processor.js:10456)
 [java]     at <anonymous class>.DelayedCommand.prototype.executeInternal_(file:///var/folders/oZ/oZFKAiJ8FC80oMT1b--WME+++TQ/-Tmp-/anonymous4201752404452189319webdriver-profile/extensions/fxdriver@googlecode.com/components/command_processor.js:10461)
 [java]     at <anonymous class>.DelayedCommand.prototype.execute/<(file:///var/folders/oZ/oZFKAiJ8FC80oMT1b--WME+++TQ/-Tmp-/anonymous4201752404452189319webdriver-profile/extensions/fxdriver@googlecode.com/components/command_processor.js:10401)

score 0 · Accepted Answer

Selenium webDriver 似乎找不到元素，尝试通过 xpath 搜索。如果您提供 html 源代码（可以从 firebug 复制），那也很好。更新：感谢回复。您在代码中有类名“breadcrump_home_link”，但测试中有不同的类名：“access_my_schedule_link”。

score 0 · Accepted Answer

嗯，这是一个答案。我认为这可能值得作为硒人的错误提交。

我拆开了 WebObjects 为我创建的 HTML。我使用的是 WOActiveImage。如果我在 WOImage 周围使用 WOHyperlink，我会得到几乎完全相同的 URL，并且 selenium 能够跟踪该链接。

不同之处在于：

<a name="19" class="access_my_schedule_link" 
   href="/cgi-bin/...">
<img width="74" border="0" height="64" src="/cgi-bin/..." ismap="ismap" />
</a>

变成：

<a name="19" class="access_my_schedule_link" 
   href="/cgi-bin/...">
<img width="74" border="0" height="64" src="/cgi-bin/..." />
</a>

显然在 A 标签上使用 ismap 属性对 Selenium 是有毒的。很奇怪。

好吧，我现在很好。

score 0 · Accepted Answer

当您从 .findElement 方法获得异常时，您所要做的就是优雅地处理异常，如果您在循环中完成所有操作，您可以根据需要重试多次而不会导致测试崩溃。如果您查看 FluentWait 类的 .ignoring 方法，这就是一个示例。

selenium-webdriver - Selenium 找到 A 标签但 click() 没有效果？

3 回答 3

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