org.eclipse.jdt.text.tests/src/org/eclipse/jdt/text/tests/JavaPartitionerExtensionTest.java

/**********************************************************************
Copyright (c) 2000, 2002 IBM Corp. and others.
All rights reserved. This program and the accompanying materials
are made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html

Contributors:
    IBM Corporation - Initial implementation
**********************************************************************/
package org.eclipse.jdt.text.tests;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.jface.preference.PreferenceStore;

import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentPartitioner;
import org.eclipse.jface.text.IDocumentPartitioningListener;
import org.eclipse.jface.text.IDocumentPartitioningListenerExtension;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITypedRegion;

import org.eclipse.jdt.ui.text.JavaTextTools;





public class JavaPartitionerExtensionTest extends TestCase {
	
	
	class PartitioningListener implements IDocumentPartitioningListener, IDocumentPartitioningListenerExtension {
		/*
		 * @see IDocumentPartitioningListener#documentPartitioningChanged(IDocument)
		 */
		public void documentPartitioningChanged(IDocument document) {
			fDocumentPartitioningChanged= true;
		}

		/*
		 * @see IDocumentPartitioningListenerExtension#documentPartitioningChanged(IDocument, IRegion)
		 */
		public void documentPartitioningChanged(IDocument document, IRegion region) {
			fDocumentPartitioningChanged= true;
			fChangedDocumentPartitioning= region;
		}
	}
	
	private JavaTextTools fTextTools;
	private Document fDocument;
	protected boolean fDocumentPartitioningChanged;
	protected IRegion fChangedDocumentPartitioning;
	
	
	public JavaPartitionerExtensionTest(String name) {
		super(name);
	}
	
	protected void setUp() {

		fTextTools= new JavaTextTools(new PreferenceStore());
		
		fDocument= new Document();
		IDocumentPartitioner partitioner= fTextTools.createDocumentPartitioner();
		partitioner.connect(fDocument);
		fDocument.setDocumentPartitioner(partitioner);
		
		fDocumentPartitioningChanged= false;
		fChangedDocumentPartitioning= null;
		fDocument.addDocumentPartitioningListener(new PartitioningListener());
	}
	
	public static Test suite() {
		return new TestSuite(JavaPartitionerExtensionTest.class); 
	}
	
	protected void tearDown () {
		fTextTools.dispose();
		fTextTools= null;
		
		IDocumentPartitioner partitioner= fDocument.getDocumentPartitioner();
		partitioner.disconnect();
		fDocument= null;
	}


	protected String print(ITypedRegion r) {
		return r != null ? "[" + r.getOffset() + "," + r.getLength() + "," + r.getType() + "]" : "null";
	}
	
	protected String print(IRegion r) {
		return r != null ? "[" + r.getOffset() + "," + r.getLength() + "]" : "null";
	}	
	
	protected void check(int offset, int length) {
		assertTrue(fDocumentPartitioningChanged);
		assertNotNull(fChangedDocumentPartitioning);
		assertTrue(fChangedDocumentPartitioning.getOffset() == offset);
		assertTrue(fChangedDocumentPartitioning.getLength() == length);
		
		fDocumentPartitioningChanged= false;
		fChangedDocumentPartitioning= null;
	}
	
	protected void check() {
		assertTrue(!fDocumentPartitioningChanged);
		assertTrue(fChangedDocumentPartitioning == null);
	}
	
	public void testConvertPartition() {
		
		try {
			fDocument.set("/*xxx*/");
			check(0, 7);
			fDocument.replace(0,0,"//");
			check(0, 9);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}	
	
	public void testTransformPartition() {
		
		try {
			fDocument.set("/*\nx\nx\nx\n*/");
			check(0, 11);
			fDocument.replace(0,0,"//");
			check(0, 13);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}
	
	public void testToggleMultiPartition() {
		
		try {
			fDocument.set("/*\nCode version 1\n/*/\nCode version 2\n//*/");
			check(0, 41);
			fDocument.replace(0,0,"//");
			check(0, 43);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}
	
	public void testSplitPartition() {
		try {
			fDocument.set("class X {}");
			check();
			fDocument.replace(9, 0, "/**/");
			check(9, 4);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}
	
	public void testShortenDocument() {
		try {
			fDocument.set("class x {\n/***/\n}");
			check(10, 5);
			fDocument.replace(0, fDocument.getLength(), "/**/");
			check(0, 4);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}
	
	public void testDeletePartition() {
		try {
			fDocument.set("class x {\n/***/\n}");
			check(10, 5);
			fDocument.replace(10, 5,  null);
			check(10, 0);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}
	
	public void testDeletePartition2() {
		try {
			fDocument.set("class x {\n/***/\n}");
			check(10, 5);
			fDocument.replace(10, 7,  null);
			check(10, 0);
		} catch (BadLocationException x) {
			assertTrue(false);
		}
	}	
}