tika-core/src/test/java/org/apache/tika/sax/BasicContentHandlerFactoryTest.java - tika - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.tika.sax;

 import static java.nio.charset.StandardCharsets.UTF_8;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;

 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.util.Set;

 import org.junit.Test;
 import org.xml.sax.Attributes;
 import org.xml.sax.ContentHandler;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 import org.xml.sax.helpers.DefaultHandler;

 import org.apache.tika.exception.TikaException;
 import org.apache.tika.exception.WriteLimitReachedException;
 import org.apache.tika.metadata.Metadata;
 import org.apache.tika.mime.MediaType;
 import org.apache.tika.parser.ParseContext;
 import org.apache.tika.parser.Parser;

 /**
  * Test cases for the {@link org.apache.tika.sax.BodyContentHandler} class.
  */
 public class BasicContentHandlerFactoryTest {

     private static final String ENCODING = UTF_8.name();
     //default max char len (at least in WriteOutContentHandler is 100k)
     private static final int OVER_DEFAULT = 120000;

     //copied from TikaTest in tika-parsers package
     public static void assertNotContains(String needle, String haystack) {
         assertFalse(needle + " found in:\n" + haystack, haystack.contains(needle));
     }

     public static void assertNotContains(String needle, byte[] hayStack)
             throws UnsupportedEncodingException {
         assertNotContains(needle, new String(hayStack, ENCODING));
     }

     public static void assertContains(String needle, String haystack) {
         assertTrue(needle + " not found in:\n" + haystack, haystack.contains(needle));
     }

     public static void assertContains(String needle, byte[] hayStack)
             throws UnsupportedEncodingException {
         assertContains(needle, new String(hayStack, ENCODING));
     }

     @Test
     public void testIgnore() throws Exception {
         Parser p = new MockParser(OVER_DEFAULT);
         ContentHandler handler =
                 new BasicContentHandlerFactory(BasicContentHandlerFactory.HANDLER_TYPE.IGNORE, -1)
                         .getNewContentHandler();
         assertTrue(handler instanceof DefaultHandler);
         p.parse(null, handler, null, null);
         //unfortunatley, the DefaultHandler does not return "",
         assertContains("org.xml.sax.helpers.DefaultHandler", handler.toString());

         //tests that no write limit exception is thrown
         p = new MockParser(100);
         handler = new BasicContentHandlerFactory(BasicContentHandlerFactory.HANDLER_TYPE.IGNORE, 5)
                 .getNewContentHandler();
         assertTrue(handler instanceof DefaultHandler);
         p.parse(null, handler, null, null);
         assertContains("org.xml.sax.helpers.DefaultHandler", handler.toString());
     }

     @Test
     public void testText() throws Exception {
         Parser p = new MockParser(OVER_DEFAULT);
         BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.TEXT;
         ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

         assertTrue(handler instanceof ToTextContentHandler);
         p.parse(null, handler, null, null);
         String extracted = handler.toString();
         assertContains("This is the title", extracted);
         assertContains("aaaaaaaaaa", extracted);
         assertNotContains("<body", extracted);
         assertNotContains("<html", extracted);
         assertTrue(extracted.length() > 110000);
         //now test write limit
         p = new MockParser(10);
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         extracted = handler.toString();
         assertContains("This ", extracted);
         assertNotContains("aaaa", extracted);

         //now test outputstream call
         p = new MockParser(OVER_DEFAULT);
         ByteArrayOutputStream os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof ToTextContentHandler);
         p.parse(null, handler, null, null);
         assertContains("This is the title", os.toByteArray());
         assertContains("aaaaaaaaaa", os.toByteArray());
         assertTrue(os.toByteArray().length > 110000);
         assertNotContains("<body", os.toByteArray());
         assertNotContains("<html", os.toByteArray());

         p = new MockParser(10);
         os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         //When writing to an OutputStream and a write limit is reached,
         //currently, nothing is written.
         assertEquals(0, os.toByteArray().length);
     }

     @Test
     public void testHTML() throws Exception {
         Parser p = new MockParser(OVER_DEFAULT);
         BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.HTML;
         ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

         assertTrue(handler instanceof ToHTMLContentHandler);
         p.parse(null, handler, null, null);
         String extracted = handler.toString();
         assertContains("<head><title>This is the title", extracted);
         assertContains("aaaaaaaaaa", extracted);
         assertTrue(extracted.length() > 110000);

         //now test write limit
         p = new MockParser(10);
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         extracted = handler.toString();
         assertContains("This ", extracted);
         assertNotContains("aaaa", extracted);

         //now test outputstream call
         p = new MockParser(OVER_DEFAULT);
         ByteArrayOutputStream os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof ToHTMLContentHandler);
         p.parse(null, handler, null, null);
         assertContains("This is the title", os.toByteArray());
         assertContains("aaaaaaaaaa", os.toByteArray());
         assertContains("<body", os.toByteArray());
         assertContains("<html", os.toByteArray());
         assertTrue(os.toByteArray().length > 110000);


         p = new MockParser(10);
         os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         assertEquals(0, os.toByteArray().length);
     }

     @Test
     public void testXML() throws Exception {
         Parser p = new MockParser(OVER_DEFAULT);
         BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.HTML;
         ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

         assertTrue(handler instanceof ToXMLContentHandler);
         p.parse(null, handler, new Metadata(), null);
         String extracted = handler.toString();
         assertContains("<head><title>This is the title", extracted);
         assertContains("aaaaaaaaaa", extracted);
         assertTrue(handler.toString().length() > 110000);

         //now test write limit
         p = new MockParser(10);
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         extracted = handler.toString();
         assertContains("This ", extracted);
         assertNotContains("aaaa", extracted);

         //now test outputstream call
         p = new MockParser(OVER_DEFAULT);
         ByteArrayOutputStream os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof ToXMLContentHandler);
         p.parse(null, handler, null, null);

         assertContains("This is the title", os.toByteArray());
         assertContains("aaaaaaaaaa", os.toByteArray());
         assertContains("<body", os.toByteArray());
         assertContains("<html", os.toByteArray());
         assertTrue(os.toByteArray().length > 110000);


         p = new MockParser(10);
         os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         assertEquals(0, os.toByteArray().length);
     }

     @Test
     public void testBody() throws Exception {
         Parser p = new MockParser(OVER_DEFAULT);
         BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.BODY;
         ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

         assertTrue(handler instanceof BodyContentHandler);

         p.parse(null, handler, null, null);
         String extracted = handler.toString();
         assertNotContains("title", extracted);
         assertContains("aaaaaaaaaa", extracted);
         assertTrue(extracted.length() > 110000);

         //now test write limit
         p = new MockParser(10);
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
         assertTrue(handler instanceof BodyContentHandler);
         assertWriteLimitReached(p, (BodyContentHandler) handler);
         extracted = handler.toString();
         assertNotContains("This ", extracted);
         assertContains("aaaa", extracted);

         //now test outputstream call
         p = new MockParser(OVER_DEFAULT);
         ByteArrayOutputStream os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof BodyContentHandler);
         p.parse(null, handler, null, null);
         assertNotContains("title", os.toByteArray());
         assertContains("aaaaaaaaaa", os.toByteArray());
         assertNotContains("<body", os.toByteArray());
         assertNotContains("<html", os.toByteArray());
         assertTrue(os.toByteArray().length > 110000);

         p = new MockParser(10);
         os = new ByteArrayOutputStream();
         handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
         assertTrue(handler instanceof WriteOutContentHandler);
         assertWriteLimitReached(p, (WriteOutContentHandler) handler);
         assertEquals(0, os.toByteArray().length);
     }

     private void assertWriteLimitReached(Parser p, WriteOutContentHandler handler)
             throws Exception {
         boolean wlr = false;
         try {
             p.parse(null, handler, null, null);
         } catch (SAXException e) {
             if (!WriteLimitReachedException.isWriteLimitReached(e)) {
                 throw e;
             }
             wlr = true;
         }
         assertTrue("WriteLimitReached", wlr);
     }

     //TODO: is there a better way than to repeat this with diff signature?
     private void assertWriteLimitReached(Parser p, BodyContentHandler handler) throws Exception {
         boolean wlr = false;
         try {
             p.parse(null, handler, null, null);
         } catch (SAXException e) {
             if (! WriteLimitReachedException.isWriteLimitReached(e)) {
                 throw e;
             }

             wlr = true;
         }
         assertTrue("WriteLimitReached", wlr);
     }

     //Simple mockparser that writes a title
     //and charsToWrite number of 'a'
     private static class MockParser implements Parser {
         private final String XHTML = "http://www.w3.org/1999/xhtml";
         private final Attributes EMPTY_ATTRIBUTES = new AttributesImpl();
         private final char[] TITLE = "This is the title".toCharArray();

         private final int charsToWrite;

         public MockParser(int charsToWrite) {
             this.charsToWrite = charsToWrite;
         }

         @Override
         public Set<MediaType> getSupportedTypes(ParseContext context) {
             return null;
         }

         @Override
         public void parse(InputStream stream, ContentHandler handler, Metadata metadata,
                           ParseContext context) throws IOException, SAXException, TikaException {
             handler.startDocument();
             handler.startPrefixMapping("", XHTML);
             handler.startElement(XHTML, "html", "html", EMPTY_ATTRIBUTES);
             handler.startElement(XHTML, "head", "head", EMPTY_ATTRIBUTES);
             handler.startElement(XHTML, "title", "head", EMPTY_ATTRIBUTES);
             handler.characters(TITLE, 0, TITLE.length);
             handler.endElement(XHTML, "title", "head");

             handler.endElement(XHTML, "head", "head");
             handler.startElement(XHTML, "body", "body", EMPTY_ATTRIBUTES);
             char[] body = new char[charsToWrite];
             for (int i = 0; i < charsToWrite; i++) {
                 body[i] = 'a';
             }
             handler.characters(body, 0, body.length);
             handler.endElement(XHTML, "body", "body");
             handler.endElement(XHTML, "html", "html");
             handler.endDocument();
         }
     }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.tika.sax;

	import static java.nio.charset.StandardCharsets.UTF_8;
	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertFalse;
	import static org.junit.Assert.assertTrue;

	import java.io.ByteArrayOutputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.UnsupportedEncodingException;
	import java.util.Set;

	import org.junit.Test;
	import org.xml.sax.Attributes;
	import org.xml.sax.ContentHandler;
	import org.xml.sax.SAXException;
	import org.xml.sax.helpers.AttributesImpl;
	import org.xml.sax.helpers.DefaultHandler;

	import org.apache.tika.exception.TikaException;
	import org.apache.tika.exception.WriteLimitReachedException;
	import org.apache.tika.metadata.Metadata;
	import org.apache.tika.mime.MediaType;
	import org.apache.tika.parser.ParseContext;
	import org.apache.tika.parser.Parser;

	/**
	* Test cases for the {@link org.apache.tika.sax.BodyContentHandler} class.
	*/
	public class BasicContentHandlerFactoryTest {

	private static final String ENCODING = UTF_8.name();
	//default max char len (at least in WriteOutContentHandler is 100k)
	private static final int OVER_DEFAULT = 120000;

	//copied from TikaTest in tika-parsers package
	public static void assertNotContains(String needle, String haystack) {
	assertFalse(needle + " found in:\n" + haystack, haystack.contains(needle));
	}

	public static void assertNotContains(String needle, byte[] hayStack)
	throws UnsupportedEncodingException {
	assertNotContains(needle, new String(hayStack, ENCODING));
	}

	public static void assertContains(String needle, String haystack) {
	assertTrue(needle + " not found in:\n" + haystack, haystack.contains(needle));
	}

	public static void assertContains(String needle, byte[] hayStack)
	throws UnsupportedEncodingException {
	assertContains(needle, new String(hayStack, ENCODING));
	}

	@Test
	public void testIgnore() throws Exception {
	Parser p = new MockParser(OVER_DEFAULT);
	ContentHandler handler =
	new BasicContentHandlerFactory(BasicContentHandlerFactory.HANDLER_TYPE.IGNORE, -1)
	.getNewContentHandler();
	assertTrue(handler instanceof DefaultHandler);
	p.parse(null, handler, null, null);
	//unfortunatley, the DefaultHandler does not return "",
	assertContains("org.xml.sax.helpers.DefaultHandler", handler.toString());

	//tests that no write limit exception is thrown
	p = new MockParser(100);
	handler = new BasicContentHandlerFactory(BasicContentHandlerFactory.HANDLER_TYPE.IGNORE, 5)
	.getNewContentHandler();
	assertTrue(handler instanceof DefaultHandler);
	p.parse(null, handler, null, null);
	assertContains("org.xml.sax.helpers.DefaultHandler", handler.toString());
	}

	@Test
	public void testText() throws Exception {
	Parser p = new MockParser(OVER_DEFAULT);
	BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.TEXT;
	ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

	assertTrue(handler instanceof ToTextContentHandler);
	p.parse(null, handler, null, null);
	String extracted = handler.toString();
	assertContains("This is the title", extracted);
	assertContains("aaaaaaaaaa", extracted);
	assertNotContains("<body", extracted);
	assertNotContains("<html", extracted);
	assertTrue(extracted.length() > 110000);
	//now test write limit
	p = new MockParser(10);
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	extracted = handler.toString();
	assertContains("This ", extracted);
	assertNotContains("aaaa", extracted);

	//now test outputstream call
	p = new MockParser(OVER_DEFAULT);
	ByteArrayOutputStream os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof ToTextContentHandler);
	p.parse(null, handler, null, null);
	assertContains("This is the title", os.toByteArray());
	assertContains("aaaaaaaaaa", os.toByteArray());
	assertTrue(os.toByteArray().length > 110000);
	assertNotContains("<body", os.toByteArray());
	assertNotContains("<html", os.toByteArray());

	p = new MockParser(10);
	os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	//When writing to an OutputStream and a write limit is reached,
	//currently, nothing is written.
	assertEquals(0, os.toByteArray().length);
	}

	@Test
	public void testHTML() throws Exception {
	Parser p = new MockParser(OVER_DEFAULT);
	BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.HTML;
	ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

	assertTrue(handler instanceof ToHTMLContentHandler);
	p.parse(null, handler, null, null);
	String extracted = handler.toString();
	assertContains("<head><title>This is the title", extracted);
	assertContains("aaaaaaaaaa", extracted);
	assertTrue(extracted.length() > 110000);

	//now test write limit
	p = new MockParser(10);
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	extracted = handler.toString();
	assertContains("This ", extracted);
	assertNotContains("aaaa", extracted);

	//now test outputstream call
	p = new MockParser(OVER_DEFAULT);
	ByteArrayOutputStream os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof ToHTMLContentHandler);
	p.parse(null, handler, null, null);
	assertContains("This is the title", os.toByteArray());
	assertContains("aaaaaaaaaa", os.toByteArray());
	assertContains("<body", os.toByteArray());
	assertContains("<html", os.toByteArray());
	assertTrue(os.toByteArray().length > 110000);


	p = new MockParser(10);
	os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	assertEquals(0, os.toByteArray().length);
	}

	@Test
	public void testXML() throws Exception {
	Parser p = new MockParser(OVER_DEFAULT);
	BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.HTML;
	ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

	assertTrue(handler instanceof ToXMLContentHandler);
	p.parse(null, handler, new Metadata(), null);
	String extracted = handler.toString();
	assertContains("<head><title>This is the title", extracted);
	assertContains("aaaaaaaaaa", extracted);
	assertTrue(handler.toString().length() > 110000);

	//now test write limit
	p = new MockParser(10);
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	extracted = handler.toString();
	assertContains("This ", extracted);
	assertNotContains("aaaa", extracted);

	//now test outputstream call
	p = new MockParser(OVER_DEFAULT);
	ByteArrayOutputStream os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof ToXMLContentHandler);
	p.parse(null, handler, null, null);

	assertContains("This is the title", os.toByteArray());
	assertContains("aaaaaaaaaa", os.toByteArray());
	assertContains("<body", os.toByteArray());
	assertContains("<html", os.toByteArray());
	assertTrue(os.toByteArray().length > 110000);


	p = new MockParser(10);
	os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	assertEquals(0, os.toByteArray().length);
	}

	@Test
	public void testBody() throws Exception {
	Parser p = new MockParser(OVER_DEFAULT);
	BasicContentHandlerFactory.HANDLER_TYPE type = BasicContentHandlerFactory.HANDLER_TYPE.BODY;
	ContentHandler handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler();

	assertTrue(handler instanceof BodyContentHandler);

	p.parse(null, handler, null, null);
	String extracted = handler.toString();
	assertNotContains("title", extracted);
	assertContains("aaaaaaaaaa", extracted);
	assertTrue(extracted.length() > 110000);

	//now test write limit
	p = new MockParser(10);
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler();
	assertTrue(handler instanceof BodyContentHandler);
	assertWriteLimitReached(p, (BodyContentHandler) handler);
	extracted = handler.toString();
	assertNotContains("This ", extracted);
	assertContains("aaaa", extracted);

	//now test outputstream call
	p = new MockParser(OVER_DEFAULT);
	ByteArrayOutputStream os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, -1).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof BodyContentHandler);
	p.parse(null, handler, null, null);
	assertNotContains("title", os.toByteArray());
	assertContains("aaaaaaaaaa", os.toByteArray());
	assertNotContains("<body", os.toByteArray());
	assertNotContains("<html", os.toByteArray());
	assertTrue(os.toByteArray().length > 110000);

	p = new MockParser(10);
	os = new ByteArrayOutputStream();
	handler = new BasicContentHandlerFactory(type, 5).getNewContentHandler(os, ENCODING);
	assertTrue(handler instanceof WriteOutContentHandler);
	assertWriteLimitReached(p, (WriteOutContentHandler) handler);
	assertEquals(0, os.toByteArray().length);
	}

	private void assertWriteLimitReached(Parser p, WriteOutContentHandler handler)
	throws Exception {
	boolean wlr = false;
	try {
	p.parse(null, handler, null, null);
	} catch (SAXException e) {
	if (!WriteLimitReachedException.isWriteLimitReached(e)) {
	throw e;
	}
	wlr = true;
	}
	assertTrue("WriteLimitReached", wlr);
	}

	//TODO: is there a better way than to repeat this with diff signature?
	private void assertWriteLimitReached(Parser p, BodyContentHandler handler) throws Exception {
	boolean wlr = false;
	try {
	p.parse(null, handler, null, null);
	} catch (SAXException e) {
	if (! WriteLimitReachedException.isWriteLimitReached(e)) {
	throw e;
	}

	wlr = true;
	}
	assertTrue("WriteLimitReached", wlr);
	}

	//Simple mockparser that writes a title
	//and charsToWrite number of 'a'
	private static class MockParser implements Parser {
	private final String XHTML = "http://www.w3.org/1999/xhtml";
	private final Attributes EMPTY_ATTRIBUTES = new AttributesImpl();
	private final char[] TITLE = "This is the title".toCharArray();

	private final int charsToWrite;

	public MockParser(int charsToWrite) {
	this.charsToWrite = charsToWrite;
	}

	@Override
	public Set<MediaType> getSupportedTypes(ParseContext context) {
	return null;
	}

	@Override
	public void parse(InputStream stream, ContentHandler handler, Metadata metadata,
	ParseContext context) throws IOException, SAXException, TikaException {
	handler.startDocument();
	handler.startPrefixMapping("", XHTML);
	handler.startElement(XHTML, "html", "html", EMPTY_ATTRIBUTES);
	handler.startElement(XHTML, "head", "head", EMPTY_ATTRIBUTES);
	handler.startElement(XHTML, "title", "head", EMPTY_ATTRIBUTES);
	handler.characters(TITLE, 0, TITLE.length);
	handler.endElement(XHTML, "title", "head");

	handler.endElement(XHTML, "head", "head");
	handler.startElement(XHTML, "body", "body", EMPTY_ATTRIBUTES);
	char[] body = new char[charsToWrite];
	for (int i = 0; i < charsToWrite; i++) {
	body[i] = 'a';
	}
	handler.characters(body, 0, body.length);
	handler.endElement(XHTML, "body", "body");
	handler.endElement(XHTML, "html", "html");
	handler.endDocument();
	}
	}
	}