1 /*
   2  * Copyright (c) 2019, 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 transform;
  25 
  26 import java.io.ByteArrayInputStream;
  27 import java.io.ByteArrayOutputStream;
  28 import java.io.InputStream;
  29 import java.io.PrintStream;
  30 
  31 import javax.xml.transform.ErrorListener;
  32 import javax.xml.transform.TransformerConfigurationException;
  33 import javax.xml.transform.TransformerException;
  34 import javax.xml.transform.TransformerFactory;
  35 import javax.xml.transform.sax.SAXSource;
  36 import org.testng.Assert;
  37 import org.testng.annotations.AfterClass;
  38 import org.testng.annotations.BeforeClass;
  39 import org.testng.annotations.Test;
  40 import org.xml.sax.InputSource;
  41 
  42 /*
  43  * @test
  44  * @bug 8157830
  45  * @library /javax/xml/jaxp/libs /javax/xml/jaxp/unittest
  46  * @run testng/othervm transform.ErrorListenerTest
  47  * @summary Verifies that ErrorListeners are handled properly
  48  */
  49 public class ErrorListenerTest {
  50 
  51     static final private String INVALID_STYLESHEET = "xxx";
  52     static final private String SYSTEM_ID = "http://openjdk_java_net/xsl/dummy.xsl";
  53 
  54     PrintStream original;
  55 
  56     @BeforeClass
  57     public void setUpClass() throws Exception {
  58         // save the PrintStream
  59         original = System.err;
  60     }
  61 
  62     @AfterClass
  63     protected void tearDown() throws Exception {
  64         // set back to the original
  65         System.setErr(original);
  66     }
  67 
  68     /**
  69      * Verifies that when an ErrorListener is registered, parser errors are passed
  70      * onto the listener without other output.
  71      *
  72      * @throws Exception
  73      */
  74     @Test
  75     public void test() throws Exception {
  76         InputStream is = new ByteArrayInputStream(INVALID_STYLESHEET.getBytes());
  77         InputSource source = new InputSource(is);
  78         source.setSystemId(SYSTEM_ID);
  79 
  80         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  81         PrintStream ps = new PrintStream(baos);
  82         System.setErr(ps);
  83 
  84         TransformerFactory factory = TransformerFactory.newInstance();
  85         factory.setErrorListener(new ErrListener());
  86 
  87         try {
  88             factory.newTransformer(new SAXSource(source));
  89         } catch (TransformerConfigurationException e) {
  90             // nothing
  91         }
  92 
  93         // all errors are handled by the ErrorListener, no other output
  94         Assert.assertEquals(baos.toString(), "");
  95 
  96     }
  97 
  98     class ErrListener implements ErrorListener {
  99 
 100         @Override
 101         public void error(TransformerException exception)
 102                 throws TransformerException {
 103             System.out.println("Correctly handled error: " + exception.getMessage());
 104         }
 105 
 106         @Override
 107         public void fatalError(TransformerException exception)
 108                 throws TransformerException {
 109             System.out.println("Correctly handled fatal: " + exception.getMessage());
 110         }
 111 
 112         @Override
 113         public void warning(TransformerException exception)
 114                 throws TransformerException {
 115             System.out.println("Correctly handled warning: " + exception.getMessage());
 116         }
 117     }
 118 }