Ruby Selenium Web Driver:查找 xpath 元素而不抛出 NoSuchElementExcept

Question

我有一个下面的html，它正在尝试使用Ruby Selenium网络驱动程序进行测试

<div class="container-fluid container-results">
    <div class="result-row" id="0">
        <ul>
            <li class="process-status-column upload-success-icon">
                <svg class="glyphicon-upload-green" viewBox="0 0 100 100">
                    <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#doc_upload"></use>
                </svg>
            </li>
            <li class="file-label-column"><span>validated.txt</span></li>
            <li class="client-company-column"><span>test-client</span></li>
            <li class="reference-column"><span>Ref001</span></li>
        </ul>
    </div>
    <div class="result-row" id="1">
        <ul>
            <li class="process-status-column upload-error-icon">
                <svg class="glyphicon-exclamation" viewBox="0 0 100 100">
                    <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#exclamation"></use>
                </svg>
            </li>
            <li class="file-label-column"><span>Error.txt</span>
                <div class="attachment-row">This invoice contains an error</div>
            </li>
            <li class="client-company-column"><span>test-client</span></li>
            <li class="reference-column"><span>Ref002</span></li>            
        </ul>
    </div>   
    <div class="result-row" id="2">
        <ul>
            <li class="process-status-column upload-pending-icon">
                <svg class="glyphicon-spin" viewBox="0 0 100 100">
                    <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#refresh"></use>
                </svg>
            </li>
            <li class="file-label-column"><span>Pending.txt</span></li>
            <li class="client-company-column"></li>
            <li class="reference-column"></li>            
        </ul>
    </div>
</div>

我正在尝试查找ul元素作为变量selectedLine该变量与输入参数span值匹配unique_field_value

selectedLine = nil
rows = driver.find_elements(:css => "div.container-fluid.container-results >div.result-row >ul")
rows.each do |row|
   element = row.find_element(:xpath => "./li/span[contains(., '#{unique_field_value.to_s.strip}')]")
  if(!element.nil?)
    selectedLine = row
  end
end

如果我unique_field_value validated.txt作为参数值传递，上面的代码工作正常，但是如果我传递Error.txt或Pending.txt下面是异常 getttig

no such element: Unable to locate element: {"method":"xpath","selector":"./li/span[contains(., 'Error.txt')]"} (org.openqa.selenium.NoSuchElementException)

我的代码正在尝试在rows的第一次迭代中找到与参数匹配unique_field_value span元素，如果找不到，则引发异常，如何继续迭代rows的所有元素而不会引发NoSuchElementException异常

Answer 1

让它使用以下代码工作

rows.each do |row|
    elements = row.find_elements(:xpath => "./li/span[contains(., '#{unique_field_value.to_s.strip}')]")
    if (elements.length > 0)
      selectedLine = row
    end
  end

Answer 2

尝试：

rows.each do |row|
  element = row.find_element(:xpath => "./li/span[contains(., '#{unique_field_value.to_s.strip.downcase}')]")
  if(!element.nil?)
    selectedLine = row
end