tests/org.eclipse.wst.html.core.tests/src/org/eclipse/wst/html/core/tests/text/TestStructuredPartitionerHTML.java - sourceediting/webtools.sourceediting.tests - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.wst.html.core.tests.text;

 import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringBufferInputStream;

 import junit.framework.TestCase;

 import org.eclipse.jface.text.BadLocationException;
 import org.eclipse.jface.text.IDocumentExtension3;
 import org.eclipse.jface.text.IDocumentPartitioner;
 import org.eclipse.jface.text.ITypedRegion;
 import org.eclipse.wst.html.core.text.IHTMLPartitions;
 import org.eclipse.wst.sse.core.StructuredModelManager;
 import org.eclipse.wst.sse.core.internal.provisional.IModelManager;
 import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredPartitioning;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredTextPartitioner;
 import org.eclipse.wst.sse.core.utils.StringUtils;
 import org.eclipse.wst.xml.core.text.IXMLPartitions;

 import com.ibm.icu.text.DecimalFormat;

 public class TestStructuredPartitionerHTML extends TestCase {

 	private boolean DEBUG_PRINT_RESULT = false;
 	protected ITypedRegion[] partitions = null;

 	private boolean useFormatter = true;
 	protected DecimalFormat formatter;

 	public TestStructuredPartitionerHTML(String name) {
 		super(name);
 		if (DEBUG_PRINT_RESULT && useFormatter)
 			formatter = new DecimalFormat();
 	}

 	/**
 	 * must release model (from edit) after
 	 * @param filename relative to this class (TestStructuredPartitioner)
 	 */
 	private IStructuredModel getModelForEdit(String filename) {

 		IStructuredModel model = null;
 		try {
 			IModelManager modelManager = StructuredModelManager.getModelManager();
 			InputStream inStream = getClass().getResourceAsStream(filename);
 			if (inStream == null)
 				inStream = new StringBufferInputStream("");
 			model = modelManager.getModelForEdit(filename, inStream, null);
 		}
 		catch (IOException ex) {
 			ex.printStackTrace();
 		}
 		return model;
 	}

 	public void testDisconnectConnect() {
 		IStructuredModel model = null;
 		try {
 			model =getModelForEdit("testfiles/html/example01.xml");
 			if(model != null) {
 				IStructuredDocument sDoc = model.getStructuredDocument();
 				assertTrue("sDoc implementation not instance of IDocumentExtension3", sDoc instanceof IDocumentExtension3);

 				IDocumentPartitioner partitioner = ((IDocumentExtension3)sDoc).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING);
 				assertTrue("partitioner doesn't implement IStructuredTextPartitioner", partitioner instanceof IStructuredTextPartitioner);

 				IStructuredTextPartitioner stp = (IStructuredTextPartitioner)partitioner;
 				assertNotNull("partitioner was null for sDoc:" + sDoc, partitioner);
 				try {
 					stp.disconnect();
 				}
 				catch(Exception e) {
 					assertTrue("problem disconnecting w/:" +sDoc + "/n" + e, false);
 				}
 				try {
 					stp.connect(sDoc);
 				}
 				catch(Exception e) {
 					assertTrue("problem connecting w/:" + sDoc + "/n" + e, false);
 				}
 			}
 			else {
 				assertTrue("could not retrieve structured model", false);
 			}
 		}
 		finally  {
 			if(model != null)
 				model.releaseFromEdit();
 		}
 	}

 	public void testGetDefaultPartitionType() {
 		IStructuredModel model = null;
 		try {
 			model =getModelForEdit("testfiles/html/example01.xml");
 			if(model != null) {
 				IStructuredDocument sDoc = model.getStructuredDocument();
 				assertTrue("sDoc implementation not instance of IDocumentExtension3", sDoc instanceof IDocumentExtension3);

 				IDocumentPartitioner partitioner = ((IDocumentExtension3)sDoc).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING);
 				assertTrue("partitioner doesn't implement IStructuredTextPartitioner", partitioner instanceof IStructuredTextPartitioner);

 				IStructuredTextPartitioner stp = (IStructuredTextPartitioner)partitioner;
 				String defaultPartitionType = stp.getDefaultPartitionType();
 				assertTrue("wrong default partition type was: [" + defaultPartitionType + "] should be: [" + IXMLPartitions.XML_DEFAULT + "]", defaultPartitionType.equals(IXMLPartitions.XML_DEFAULT));
 			}
 			else {
 				assertTrue("could not retrieve structured model", false);
 			}
 		}
 		finally  {
 			if(model != null)
 				model.releaseFromEdit();
 		}
 	}

 	public void testGetPartitionType() {
 		IStructuredModel model = null;
 		try {
 			model =getModelForEdit("testfiles/html/example01.xml");
 			if(model != null) {
 				IStructuredDocument sDoc = model.getStructuredDocument();
 				assertTrue("sDoc implementation not instance of IDocumentExtension3", sDoc instanceof IDocumentExtension3);

 				IDocumentPartitioner partitioner = ((IDocumentExtension3)sDoc).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING);
 				assertTrue("paritioner doesn't implement IStructuredTextPartitioner", partitioner instanceof IStructuredTextPartitioner);

 				IStructuredTextPartitioner stp = (IStructuredTextPartitioner)partitioner;
 				String defaultPartitionType = stp.getDefaultPartitionType();
 				assertTrue("wrong default partition type was: [" + defaultPartitionType + "] should be: [" + IXMLPartitions.XML_DEFAULT + "]", defaultPartitionType.equals(IXMLPartitions.XML_DEFAULT));
 			}
 			else {
 				assertTrue("could not retrieve structured model", false);
 			}
 		}
 		finally  {
 			if(model != null)
 				model.releaseFromEdit();
 		}
 	}

 	public void testHTML1() throws IOException, BadLocationException {
 		int expectedPartitions = 4;
 		int nPartitions = doComputePartitioningTest("testfiles/html/example01.html");
 		assertTrue("wrong number of partitions", nPartitions == expectedPartitions);
 		checkSeams();
 		verifyPartitionTypes(partitions, new String[]{IHTMLPartitions.HTML_DECLARATION, IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.HTML_COMMENT, IHTMLPartitions.HTML_DEFAULT});
 	}

 	public void testHTML2() throws IOException, BadLocationException {
 		int expectedPartitions = 7;
 		//TODO Nitin, we need to review the Unknown to Script change (8/1/03, 9:00PM)
 		int nPartitions = doComputePartitioningTest("testfiles/html/example02.html");
 		assertTrue("wrong number of partitions", nPartitions == expectedPartitions);
 		checkSeams();
 		verifyPartitionTypes(partitions, new String[]{IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.SCRIPT, IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.SCRIPT, IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.SCRIPT, IHTMLPartitions.HTML_DEFAULT});
 	}

 	public void testHTML3() throws IOException, BadLocationException {
 		int expectedPartitions = 1;
 		String file = "testfiles/html/example03.html";
 		int nPartitions = doComputePartitioningTest(file);
 		assertTrue("wrong number of partitions", nPartitions == expectedPartitions);
 		checkSeams();
 		verifyPartitionTypes(partitions, new String[]{IHTMLPartitions.HTML_DEFAULT});

 		// 121 if CRLF
 		//  ITypedRegion scriptPartition = getPartitionTest(file, 121);
 		// 116 if LF or CR only
 		//  ITypedRegion scriptPartition = getPartitionTest(file, 121);

 		ITypedRegion part1 = getPartitionTest(file, 121);
 		ITypedRegion part2 = getPartitionTest(file, 116);

 //		assertEquals("partition is wrong type!", scriptPartition.getType(), IHTMLPartitions.ST_SCRIPT);
 		// the critical position is surrounded with HTML > 5 characters in either direction; this should be good enough
 		assertTrue("partition is wrong type! :(" + part1.getType() + "|" + part2.getType() + ")", part1.getType().equals(IHTMLPartitions.SCRIPT) || part2.getType().equals(IHTMLPartitions.SCRIPT));
 		assertTrue("partition is not zero length!", (part1.getLength() == 0 || part2.getLength() == 0));
 	}

 	/**
 	 * Ensure that the current list of partitions are all adjacent to one another
 	 */
 	protected void checkSeams() {
 		if (partitions == null)
 			return;
 		int offset = 0;
 		for (int i = 0; i < partitions.length; i++) {
 			assertEquals("partitions are not contiguous!", partitions[i].getOffset(), offset);
 			offset = partitions[i].getOffset() + partitions[i].getLength();
 		}
 	}

 	/**
 	 * Compute the partitions for the given filename using the default partitioner
 	 * for that file type.
 	 *
 	 * @param filename
 	 * @return int
 	 * @throws IOException
 	 * @throws BadLocationException
 	 */
 	protected int doComputePartitioningTest(String filename) throws IOException, BadLocationException {

 		IModelManager modelManager = StructuredModelManager.getModelManager();
 		InputStream inStream = getClass().getResourceAsStream(filename);
 		if (inStream == null)
 			inStream = new StringBufferInputStream("");
 		IStructuredModel model = modelManager.getModelForEdit(filename, inStream, null);

 		IStructuredDocument structuredDocument = model.getStructuredDocument();
 		if (DEBUG_PRINT_RESULT && useFormatter) {
 			double baseTen = Math.log(10);
 			formatter.setMinimumIntegerDigits((int) (Math.log(structuredDocument.getLength()) / baseTen) + 1);
 			formatter.setGroupingUsed(false);
 		}

 		partitions = structuredDocument.computePartitioning(0, structuredDocument.getLength());
 		if (DEBUG_PRINT_RESULT) {
 			String contents = null;

 			System.out.println("\nfilename: " + filename);
 			for (int i = 0; i < partitions.length; i++) {
 				try {
 					contents = structuredDocument.get(partitions[i].getOffset(), partitions[i].getLength());
 				}
 				catch (BadLocationException e) {
 					contents = "*error*";
 				}
 				if (useFormatter)
 					System.out.println(formatter.format(partitions[i].getOffset()) + ":" + formatter.format(partitions[i].getLength()) + " - " + partitions[i].getType() + " [" + StringUtils.escape(contents) + "]");
 				else
 					System.out.println(partitions[i] + " [" + StringUtils.escape(contents) + "]");
 			}
 		}
 		checkSeams();
 		model.releaseFromEdit();
 		inStream.close();

 		if (partitions == null)
 			return -1;
 		return partitions.length;
 	}

 	/**
 	 * Retrieves the single partition at the given offset for the given file, using the
 	 * default partitioner for that file type.  This test allows for verifying the zero-length
 	 * partitioning behavior.
 	 *
 	 * @param filename
 	 * @param offset
 	 * @return ITypedRegion
 	 * @throws IOException
 	 * @throws BadLocationException
 	 */
 	protected ITypedRegion getPartitionTest(String filename, int offset) throws IOException, BadLocationException {
 		IModelManager modelManager = StructuredModelManager.getModelManager();
 		InputStream inStream = getClass().getResourceAsStream(filename);
 		IStructuredModel model = modelManager.getModelForEdit(filename, inStream, null);

 		IStructuredDocument structuredDocument = model.getStructuredDocument();

 		partitions = null;
 		ITypedRegion partition = structuredDocument.getPartition(offset);
 		if (DEBUG_PRINT_RESULT) {
 			String contents = null;

 			System.out.println("\nfilename: " + filename);
 			try {
 				contents = structuredDocument.get(partition.getOffset(), partition.getLength());
 			}
 			catch (BadLocationException e) {
 				contents = "*error*";
 			}
 			System.out.println(partition + " [" + StringUtils.escape(contents) + "]");
 		}
 		model.releaseFromEdit();
 		inStream.close();

 		return partition;
 	}

 	/**
 	 * Verifies that the given partitions are of the given partition types
 	 * @param typedRegions
 	 * @param types
 	 */
 	protected void verifyPartitionTypes(ITypedRegion actualTypedRegions[], String expectedTypes[]) {
 		for (int i = 0; i < expectedTypes.length; i++)
 			assertEquals("partition type mismatched", expectedTypes[i], actualTypedRegions[i].getType());
 	}

 	/**
 	 * Verifies that the given partitions begin at the given offsets
 	 * @param typedRegions
 	 * @param types
 	 */
 	protected void verifyPartitionRegions(ITypedRegion typedRegions[], int offsets[]) {
 		for (int i = 0; i < offsets.length; i++) {
 			assertEquals("offset mismatched", typedRegions[i].getOffset(), offsets[i]);
 			if (i > 0) {
 				assertEquals("lengths misaligned", typedRegions[i].getOffset(), typedRegions[i - 1].getOffset() + typedRegions[i - 1].getLength());
 			}
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.wst.html.core.tests.text;

	import java.io.IOException;
	import java.io.InputStream;
	import java.io.StringBufferInputStream;

	import junit.framework.TestCase;

	import org.eclipse.jface.text.BadLocationException;
	import org.eclipse.jface.text.IDocumentExtension3;
	import org.eclipse.jface.text.IDocumentPartitioner;
	import org.eclipse.jface.text.ITypedRegion;
	import org.eclipse.wst.html.core.text.IHTMLPartitions;
	import org.eclipse.wst.sse.core.StructuredModelManager;
	import org.eclipse.wst.sse.core.internal.provisional.IModelManager;
	import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredPartitioning;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredTextPartitioner;
	import org.eclipse.wst.sse.core.utils.StringUtils;
	import org.eclipse.wst.xml.core.text.IXMLPartitions;

	import com.ibm.icu.text.DecimalFormat;

	public class TestStructuredPartitionerHTML extends TestCase {

	private boolean DEBUG_PRINT_RESULT = false;
	protected ITypedRegion[] partitions = null;

	private boolean useFormatter = true;
	protected DecimalFormat formatter;

	public TestStructuredPartitionerHTML(String name) {
	super(name);
	if (DEBUG_PRINT_RESULT && useFormatter)
	formatter = new DecimalFormat();
	}

	/**
	* must release model (from edit) after
	* @param filename relative to this class (TestStructuredPartitioner)
	*/
	private IStructuredModel getModelForEdit(String filename) {

	IStructuredModel model = null;
	try {
	IModelManager modelManager = StructuredModelManager.getModelManager();
	InputStream inStream = getClass().getResourceAsStream(filename);
	if (inStream == null)
	inStream = new StringBufferInputStream("");
	model = modelManager.getModelForEdit(filename, inStream, null);
	}
	catch (IOException ex) {
	ex.printStackTrace();
	}
	return model;
	}

	public void testDisconnectConnect() {
	IStructuredModel model = null;
	try {
	model =getModelForEdit("testfiles/html/example01.xml");
	if(model != null) {
	IStructuredDocument sDoc = model.getStructuredDocument();
	assertTrue("sDoc implementation not instance of IDocumentExtension3", sDoc instanceof IDocumentExtension3);

	IDocumentPartitioner partitioner = ((IDocumentExtension3)sDoc).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING);
	assertTrue("partitioner doesn't implement IStructuredTextPartitioner", partitioner instanceof IStructuredTextPartitioner);

	IStructuredTextPartitioner stp = (IStructuredTextPartitioner)partitioner;
	assertNotNull("partitioner was null for sDoc:" + sDoc, partitioner);
	try {
	stp.disconnect();
	}
	catch(Exception e) {
	assertTrue("problem disconnecting w/:" +sDoc + "/n" + e, false);
	}
	try {
	stp.connect(sDoc);
	}
	catch(Exception e) {
	assertTrue("problem connecting w/:" + sDoc + "/n" + e, false);
	}
	}
	else {
	assertTrue("could not retrieve structured model", false);
	}
	}
	finally {
	if(model != null)
	model.releaseFromEdit();
	}
	}

	public void testGetDefaultPartitionType() {
	IStructuredModel model = null;
	try {
	model =getModelForEdit("testfiles/html/example01.xml");
	if(model != null) {
	IStructuredDocument sDoc = model.getStructuredDocument();
	assertTrue("sDoc implementation not instance of IDocumentExtension3", sDoc instanceof IDocumentExtension3);

	IDocumentPartitioner partitioner = ((IDocumentExtension3)sDoc).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING);
	assertTrue("partitioner doesn't implement IStructuredTextPartitioner", partitioner instanceof IStructuredTextPartitioner);

	IStructuredTextPartitioner stp = (IStructuredTextPartitioner)partitioner;
	String defaultPartitionType = stp.getDefaultPartitionType();
	assertTrue("wrong default partition type was: [" + defaultPartitionType + "] should be: [" + IXMLPartitions.XML_DEFAULT + "]", defaultPartitionType.equals(IXMLPartitions.XML_DEFAULT));
	}
	else {
	assertTrue("could not retrieve structured model", false);
	}
	}
	finally {
	if(model != null)
	model.releaseFromEdit();
	}
	}

	public void testGetPartitionType() {
	IStructuredModel model = null;
	try {
	model =getModelForEdit("testfiles/html/example01.xml");
	if(model != null) {
	IStructuredDocument sDoc = model.getStructuredDocument();
	assertTrue("sDoc implementation not instance of IDocumentExtension3", sDoc instanceof IDocumentExtension3);

	IDocumentPartitioner partitioner = ((IDocumentExtension3)sDoc).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING);
	assertTrue("paritioner doesn't implement IStructuredTextPartitioner", partitioner instanceof IStructuredTextPartitioner);

	IStructuredTextPartitioner stp = (IStructuredTextPartitioner)partitioner;
	String defaultPartitionType = stp.getDefaultPartitionType();
	assertTrue("wrong default partition type was: [" + defaultPartitionType + "] should be: [" + IXMLPartitions.XML_DEFAULT + "]", defaultPartitionType.equals(IXMLPartitions.XML_DEFAULT));
	}
	else {
	assertTrue("could not retrieve structured model", false);
	}
	}
	finally {
	if(model != null)
	model.releaseFromEdit();
	}
	}

	public void testHTML1() throws IOException, BadLocationException {
	int expectedPartitions = 4;
	int nPartitions = doComputePartitioningTest("testfiles/html/example01.html");
	assertTrue("wrong number of partitions", nPartitions == expectedPartitions);
	checkSeams();
	verifyPartitionTypes(partitions, new String[]{IHTMLPartitions.HTML_DECLARATION, IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.HTML_COMMENT, IHTMLPartitions.HTML_DEFAULT});
	}

	public void testHTML2() throws IOException, BadLocationException {
	int expectedPartitions = 7;
	//TODO Nitin, we need to review the Unknown to Script change (8/1/03, 9:00PM)
	int nPartitions = doComputePartitioningTest("testfiles/html/example02.html");
	assertTrue("wrong number of partitions", nPartitions == expectedPartitions);
	checkSeams();
	verifyPartitionTypes(partitions, new String[]{IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.SCRIPT, IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.SCRIPT, IHTMLPartitions.HTML_DEFAULT, IHTMLPartitions.SCRIPT, IHTMLPartitions.HTML_DEFAULT});
	}

	public void testHTML3() throws IOException, BadLocationException {
	int expectedPartitions = 1;
	String file = "testfiles/html/example03.html";
	int nPartitions = doComputePartitioningTest(file);
	assertTrue("wrong number of partitions", nPartitions == expectedPartitions);
	checkSeams();
	verifyPartitionTypes(partitions, new String[]{IHTMLPartitions.HTML_DEFAULT});

	// 121 if CRLF
	// ITypedRegion scriptPartition = getPartitionTest(file, 121);
	// 116 if LF or CR only
	// ITypedRegion scriptPartition = getPartitionTest(file, 121);

	ITypedRegion part1 = getPartitionTest(file, 121);
	ITypedRegion part2 = getPartitionTest(file, 116);

	// assertEquals("partition is wrong type!", scriptPartition.getType(), IHTMLPartitions.ST_SCRIPT);
	// the critical position is surrounded with HTML > 5 characters in either direction; this should be good enough
	assertTrue("partition is wrong type! :(" + part1.getType() + "\|" + part2.getType() + ")", part1.getType().equals(IHTMLPartitions.SCRIPT) \|\| part2.getType().equals(IHTMLPartitions.SCRIPT));
	assertTrue("partition is not zero length!", (part1.getLength() == 0 \|\| part2.getLength() == 0));
	}

	/**
	* Ensure that the current list of partitions are all adjacent to one another
	*/
	protected void checkSeams() {
	if (partitions == null)
	return;
	int offset = 0;
	for (int i = 0; i < partitions.length; i++) {
	assertEquals("partitions are not contiguous!", partitions[i].getOffset(), offset);
	offset = partitions[i].getOffset() + partitions[i].getLength();
	}
	}

	/**
	* Compute the partitions for the given filename using the default partitioner
	* for that file type.
	*
	* @param filename
	* @return int
	* @throws IOException
	* @throws BadLocationException
	*/
	protected int doComputePartitioningTest(String filename) throws IOException, BadLocationException {

	IModelManager modelManager = StructuredModelManager.getModelManager();
	InputStream inStream = getClass().getResourceAsStream(filename);
	if (inStream == null)
	inStream = new StringBufferInputStream("");
	IStructuredModel model = modelManager.getModelForEdit(filename, inStream, null);

	IStructuredDocument structuredDocument = model.getStructuredDocument();
	if (DEBUG_PRINT_RESULT && useFormatter) {
	double baseTen = Math.log(10);
	formatter.setMinimumIntegerDigits((int) (Math.log(structuredDocument.getLength()) / baseTen) + 1);
	formatter.setGroupingUsed(false);
	}

	partitions = structuredDocument.computePartitioning(0, structuredDocument.getLength());
	if (DEBUG_PRINT_RESULT) {
	String contents = null;

	System.out.println("\nfilename: " + filename);
	for (int i = 0; i < partitions.length; i++) {
	try {
	contents = structuredDocument.get(partitions[i].getOffset(), partitions[i].getLength());
	}
	catch (BadLocationException e) {
	contents = "error";
	}
	if (useFormatter)
	System.out.println(formatter.format(partitions[i].getOffset()) + ":" + formatter.format(partitions[i].getLength()) + " - " + partitions[i].getType() + " [" + StringUtils.escape(contents) + "]");
	else
	System.out.println(partitions[i] + " [" + StringUtils.escape(contents) + "]");
	}
	}
	checkSeams();
	model.releaseFromEdit();
	inStream.close();

	if (partitions == null)
	return -1;
	return partitions.length;
	}

	/**
	* Retrieves the single partition at the given offset for the given file, using the
	* default partitioner for that file type. This test allows for verifying the zero-length
	* partitioning behavior.
	*
	* @param filename
	* @param offset
	* @return ITypedRegion
	* @throws IOException
	* @throws BadLocationException
	*/
	protected ITypedRegion getPartitionTest(String filename, int offset) throws IOException, BadLocationException {
	IModelManager modelManager = StructuredModelManager.getModelManager();
	InputStream inStream = getClass().getResourceAsStream(filename);
	IStructuredModel model = modelManager.getModelForEdit(filename, inStream, null);

	IStructuredDocument structuredDocument = model.getStructuredDocument();

	partitions = null;
	ITypedRegion partition = structuredDocument.getPartition(offset);
	if (DEBUG_PRINT_RESULT) {
	String contents = null;

	System.out.println("\nfilename: " + filename);
	try {
	contents = structuredDocument.get(partition.getOffset(), partition.getLength());
	}
	catch (BadLocationException e) {
	contents = "error";
	}
	System.out.println(partition + " [" + StringUtils.escape(contents) + "]");
	}
	model.releaseFromEdit();
	inStream.close();

	return partition;
	}

	/**
	* Verifies that the given partitions are of the given partition types
	* @param typedRegions
	* @param types
	*/
	protected void verifyPartitionTypes(ITypedRegion actualTypedRegions[], String expectedTypes[]) {
	for (int i = 0; i < expectedTypes.length; i++)
	assertEquals("partition type mismatched", expectedTypes[i], actualTypedRegions[i].getType());
	}

	/**
	* Verifies that the given partitions begin at the given offsets
	* @param typedRegions
	* @param types
	*/
	protected void verifyPartitionRegions(ITypedRegion typedRegions[], int offsets[]) {
	for (int i = 0; i < offsets.length; i++) {
	assertEquals("offset mismatched", typedRegions[i].getOffset(), offsets[i]);
	if (i > 0) {
	assertEquals("lengths misaligned", typedRegions[i].getOffset(), typedRegions[i - 1].getOffset() + typedRegions[i - 1].getLength());
	}
	}
	}
	}