Perl,Selenium :: Remote :: Driver - 使用Xpath选择HTML表单中的第二个元素,其中两个元素具有相同的'value'条目

时间:2013-02-20 09:40:46

标签: perl selenium selenium-rc

我试图弄清楚如何在Seleniumn :: Remote :: Driver的Perl模块中正确使用XPATH。具体来说,我有一个HTML表单,其中包含各种输入字段,其中2个输入字段具有相同的值。我想根据它的'value'选择第二个输入字段(这个值在两个输入字段中都是相同的)。我在Selenium IDE(1.10.0)中尝试过这个,它将目标显示为:

 xpath=(//input[@value='clickhere'])[2]

我正在尝试在使用Selenium :: Remote :: Driver模块的Perl脚本中模拟此行为。

$elem = $driver->find_element("xpath=(//input[\@value='clickhere'][2])");
$driver->mouse_move_to_location(element => $elem, xoffset => 0, yoffset => 0);  
$driver->click;

这不起作用并抛出错误(见下文)。我假设错误与'[2]'部分有关,因为我通常能够在HTML表单中选择具有唯一'值'的元素。将xpath编码到find_element函数中的正确方法是什么,以便它选择并单击HTML表单中的第二个元素,其中第一个和第二个元素都具有值'cickhere'?

Error while executing command: Argument was an invalid selector (e.g. XPath/CSS).: The given selector xpath=(//input[@value='click'][2]) is either invalid or does not result in a WebElement. The following error occurred:
InvalidSelectorError: Unable to locate an element with the xpath expression xpath=(//input[@value='clickhere'][2]) because of the following error:
[Exception... "The expression cannot be converted to return the specified type."  code: "0" nsresult: "0x805b0034 (TypeError)"  location: "file:///C:/Temp/anonymous6984397347674679222webdriver-profile/extensions/fxdriver@googlecode.com/components/driver_component.js Line: 5696"]
Command duration or timeout: 16 milliseconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/invalid_selector_exception.html
Build info: version: '2.30.0', revision: 'dc1ef9c', time: '2013-02-19 00:15:27'
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version: '1.7.0_11'
Session ID: ce542470-8a3a-41da-a73a-2a55275290d3
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{platform=XP, databaseEnabled=true, cssSelectorsEnabled=true, javascriptEnabled=true, acceptSslCerts=true, handlesAlerts=true, browserName=firefox, browserConnectionEnabled=true, nativeEvents=true, webStorageEnabled=true, rotatable=false, locationContextEnabled=true, applicationCacheEnabled=true, takesScreenshot=true, version=19.0}] at C:\Perl\scripts\frontend\createAccount.pl line 144.

1 个答案:

答案 0 :(得分:4)

docs显示该方法采用XPath。

定位器方案可以作为单独的arg传递,但这里没有必要,因为默认值为xpath

尝试

my $elem = $driver->find_element('//input[@value="clickhere"][2]');