org.eclipse.jdt.text.tests.JavaPartitionerExtensionTest.java Source code

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Here is the source code for org.eclipse.jdt.text.tests.JavaPartitionerExtensionTest.java

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/*******************************************************************************
 * Copyright (c) 2000, 2008 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.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, "");
            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, "");
            check(10, 0);
        } catch (BadLocationException x) {
            assertTrue(false);
        }
    }
}