Selenium学习笔记之外部化相关测试数据---xml

我们也可以用xml来定义一个信息更为丰富的UIMap.xml文件，比如，额外还添加控件所属的页，控件的类型，然后解析构建一个XMLParser类来读取相应的值。

<?xml version="1.0" encoding="utf-8" ?>
<UIMap>
  <Object ID="User Name">
    <Attributes Locator="userName" Page="Main Page" Type="Button"/>
  </Object>
  
  <Object ID="Password">
    <Attributes Locator="Password" Page="Main Page" Type="Button"/>
  </Object>
</UIMap>

相应的解析xml的代码：

    public static String getLocator(String locatorID){
        InputStream ins=Thread.currentThread().getContextClassLoader()
            .getResourceAsStream(FileConstants.XMLFILE_NAME);
        if(ins==null){
            System.out.println("Missing UIMap.xml file.");
            return null;
        }
        
        DocumentBuilderFactory fac=DocumentBuilderFactory.newInstance();
        DocumentBuilder builder=null;
        try {
            builder = fac.newDocumentBuilder();
        } catch (ParserConfigurationException pce) {
            System.out.println("Failing to new DocumentBuilder for runtime exception.");
            throw new RuntimeException(pce);
        }
        
        Document xmlDoc=null;
        try {
            xmlDoc = builder.parse(ins);
        } catch (SAXException se) {
            System.out.println("Failing to parse xml file for runtime exception.");
            throw new RuntimeException(se);
        } catch (IOException ie) {
            System.out.println("Failing to parse xml file for runtime exception.");
            throw new RuntimeException(ie);
        }
        
        XPathFactory pathFac=XPathFactory.newInstance();
        XPath xpath = pathFac.newXPath();
        
        XPathExpression exp=null;
        try {
            exp = xpath.compile("UIMap/Object[@ID='"+locatorID+"']/Attributes");
        } catch (XPathExpressionException e) {
            System.out.println("Failing to get locator for :"+locatorID);    
        }
        Node node=null;
        try {
            node = (Node)exp.evaluate(xmlDoc, XPathConstants.NODE);
        } catch (XPathExpressionException e) {
            
            e.printStackTrace();
        }finally{
            try{
                if(ins!=null){
                    ins.close();
                }
            }catch(Exception ex){
                System.out.println("Failing to load UIMap.xml for runtime exception.");
                throw new RuntimeException(ex);
            }
        }
        
        return node.getAttributes().getNamedItem("Locator").getNodeValue();
    }

测试代码：

selenium.type(UIMapParser.getLocator("UserName"), "seleniumtest");
selenium.type(UIMapParser.getLocator("Password"), "seleniumtest");