1 /*
   2  * Copyright (c) 2014, 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 stream.XMLStreamWriterTest;
  25 
  26 import java.io.ByteArrayOutputStream;
  27 
  28 import javax.xml.stream.XMLOutputFactory;
  29 import javax.xml.stream.XMLStreamWriter;
  30 
  31 import org.testng.Assert;
  32 import org.testng.annotations.Test;
  33 
  34 /*
  35  * @summary Test XMLStreamWriter writes a document with encoding setting.
  36  */
  37 public class EncodingTest {
  38 
  39     private static final XMLOutputFactory XML_OUTPUT_FACTORY = XMLOutputFactory.newInstance();
  40 
  41     /*
  42      * Tests writing a document with UTF-8 encoding, by setting UTF-8 on writer.
  43      */
  44     @Test
  45     public void testWriteStartDocumentUTF8() {
  46 
  47         final String EXPECTED_OUTPUT = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><root></root>";
  48         XMLStreamWriter writer = null;
  49         ByteArrayOutputStream byteArrayOutputStream = null;
  50 
  51         try {
  52             byteArrayOutputStream = new ByteArrayOutputStream();
  53             writer = XML_OUTPUT_FACTORY.createXMLStreamWriter(byteArrayOutputStream, "UTF-8");
  54 
  55             writer.writeStartDocument("UTF-8", "1.0");
  56             writer.writeStartElement("root");
  57             writer.writeEndElement();
  58             writer.writeEndDocument();
  59             writer.flush();
  60 
  61             String actualOutput = byteArrayOutputStream.toString();
  62             Assert.assertEquals(EXPECTED_OUTPUT, actualOutput);
  63 
  64         } catch (Exception e) {
  65             e.printStackTrace();
  66             Assert.fail(e.toString());
  67         }
  68 
  69     }
  70 
  71     /*
  72      * Tests writing a document with UTF-8 encoding on default enocding writer.
  73      * This scenario should result in an exception as default encoding is ASCII.
  74      */
  75     @Test
  76     public void testWriteStartDocumentUTF8Fail() {
  77 
  78         XMLStreamWriter writer = null;
  79         ByteArrayOutputStream byteArrayOutputStream = null;
  80 
  81         // pick a different encoding to use v. default encoding
  82         String defaultCharset = java.nio.charset.Charset.defaultCharset().name();
  83         String useCharset = "UTF-8";
  84         if (useCharset.equals(defaultCharset)) {
  85             useCharset = "US-ASCII";
  86         }
  87 
  88         System.out.println("defaultCharset = " + defaultCharset + ", useCharset = " + useCharset);
  89 
  90         try {
  91             byteArrayOutputStream = new ByteArrayOutputStream();
  92             writer = XML_OUTPUT_FACTORY.createXMLStreamWriter(byteArrayOutputStream);
  93 
  94             writer.writeStartDocument(useCharset, "1.0");
  95             writer.writeStartElement("root");
  96             writer.writeEndElement();
  97             writer.writeEndDocument();
  98             writer.flush();
  99 
 100             Assert.fail("Expected XMLStreamException as default underlying stream encoding of " + defaultCharset
 101                     + " differs from explicitly specified encoding of " + useCharset);
 102         } catch (Exception e) {
 103             e.printStackTrace();
 104         }
 105     }
 106 }