1 /*
   2  * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package parsers;
  25 
  26 import java.io.StringReader;
  27 
  28 import javax.xml.parsers.SAXParser;
  29 import javax.xml.parsers.SAXParserFactory;
  30 
  31 import org.testng.Assert;
  32 import org.testng.annotations.Test;
  33 import org.xml.sax.InputSource;
  34 import org.xml.sax.helpers.DefaultHandler;
  35 
  36 /*
  37  * @summary Test SAXParser doesn't accept empty stream.
  38  */
  39 public class ParseEmptyStream {
  40 
  41     SAXParserFactory factory = null;
  42 
  43     public ParseEmptyStream(String name) {
  44         try {
  45             factory = SAXParserFactory.newInstance();
  46             factory.setNamespaceAware(true);
  47         } catch (Exception ex) {
  48             Assert.fail(ex.getMessage());
  49         }
  50     }
  51 
  52     @Test
  53     public void testEmptyStream() {
  54         try {
  55             SAXParser parser = factory.newSAXParser();
  56             InputSource source = new InputSource(new StringReader(""));
  57             parser.parse(source, new MyHandler());
  58             Assert.fail("Inputstream without document element accepted");
  59         } catch (Exception ex) {
  60             System.out.println("Exception thrown: " + ex.getMessage());
  61             // Premature end of file exception expected
  62         }
  63     }
  64 
  65     @Test
  66     public void testXmlDeclOnly() {
  67         try {
  68             SAXParser parser = factory.newSAXParser();
  69             InputSource source = new InputSource(new StringReader("<?xml version='1.0' encoding='utf-8'?>"));
  70             parser.parse(source, new MyHandler());
  71             Assert.fail("Inputstream without document element accepted");
  72         } catch (Exception ex) {
  73             System.out.println("Exception thrown: " + ex.getMessage());
  74             // Premature end of file exception expected
  75         }
  76     }
  77 
  78     static class MyHandler extends DefaultHandler {
  79         public void startDocument() {
  80             System.out.println("Start document called");
  81         }
  82 
  83         public void endDocument() {
  84             System.out.println("End document called");
  85         }
  86     }
  87 
  88 }