title: How to check a node contains empty string or space or null in xpath?
body: <p>I want to check using xpath an node in the xml contains empty string/spaces. What is the xpath expression i need to use?</p>
  
  <p>eg:</p>
  
  <pre><code> &lt;p:insert_acc_data_file xmlns:p="http://ws.wso2.org/dataservice"&gt;
  &lt;p:Id&gt;123&lt;/p:Id&gt;
  &lt;p:Name&gt;&lt;/p:pName&gt;
  &lt;/p:insert_acc_data_file&gt;
  </code></pre>
  
  <p>How to check the Name node is empty or containing space values?</p>