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/*******************************************************************************
* Copyright (c) 2013, 2017 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.compare.tests;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import junit.framework.TestCase;
import org.eclipse.compare.ICompareFilter;
import org.eclipse.compare.ISharedDocumentAdapter;
import org.eclipse.compare.structuremergeviewer.DocumentRangeNode;
import org.eclipse.compare.structuremergeviewer.IStructureComparator;
import org.eclipse.compare.structuremergeviewer.StructureCreator;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
import org.junit.Assert;
public class StructureCreatorTest extends TestCase {
public StructureCreatorTest() {
super();
}
public StructureCreatorTest(String name) {
super(name);
}
public void testIgnoreWhitespace() {
IDocument[] docs = new IDocument[15];
docs[0] = new Document();
docs[1] = new Document();
docs[2] = new Document();
docs[3] = new Document();
docs[4] = new Document();
docs[5] = new Document();
docs[6] = new Document();
docs[7] = new Document();
docs[8] = new Document();
docs[9] = new Document();
docs[10] = new Document();
docs[11] = new Document();
docs[12] = new Document();
docs[13] = new Document();
docs[14] = new Document();
docs[0].set("ABCDEF"); //$NON-NLS-1$
docs[1].set("ABC DEF"); //$NON-NLS-1$
docs[2].set("ABC\r\nDEF"); //$NON-NLS-1$
docs[3].set("ABC\r\nDEF "); //$NON-NLS-1$
docs[4].set("\r\nABC\r\nDEF"); //$NON-NLS-1$
docs[5].set(" \r\nABC\r\nDEF"); //$NON-NLS-1$
docs[6].set("\r\nABC\r\nDEF\r\n"); //$NON-NLS-1$
docs[7].set("\r\nA BC\r\nDE F\r\n"); //$NON-NLS-1$
docs[8].set("ABC\r\n\r\nDEF"); //$NON-NLS-1$
docs[9].set("ABC\nDEF"); //$NON-NLS-1$
docs[10].set("ABC\nDEF "); //$NON-NLS-1$
docs[11].set("ABC\nDEF\n"); //$NON-NLS-1$
docs[12].set("\nABCDEF"); //$NON-NLS-1$
docs[13].set(" \nAB CD EF"); //$NON-NLS-1$
docs[14].set("\nABC\nDEF\n"); //$NON-NLS-1$
ICompareFilter[][] filters = new ICompareFilter[3][];
filters[0] = null;
filters[1] = new ICompareFilter[] { new ICompareFilter() {
public void setInput(Object input, Object ancestor, Object left,
Object right) {
// EMPTY
}
public IRegion[] getFilteredRegions(HashMap lineComparison) {
String line = lineComparison.get(ICompareFilter.THIS_LINE)
.toString();
int index = line.indexOf("A");
if (index > -1)
return new IRegion[] { new Region(index, 1) };
return null;
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return true; // cache-able
}
} };
filters[2] = new ICompareFilter[] { new ICompareFilter() {
public void setInput(Object input, Object ancestor, Object left,
Object right) {
// EMPTY
}
public IRegion[] getFilteredRegions(HashMap lineComparison) {
String line = lineComparison.get(ICompareFilter.THIS_LINE)
.toString();
int index = line.indexOf("E");
if (index > -1)
return new IRegion[] { new Region(index, 1) };
return null;
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return false; // not cache-able
}
} };
StructureCreator creator = new StructureCreator() {
private Pattern whitespace = Pattern.compile("\\s+");
private Matcher matcher = null;
public String getName() {
return "NAME";
}
public String getContents(Object node, boolean ignoreWhitespace) {
DocumentRangeNode drn = (DocumentRangeNode) node;
String retval = null;
try {
retval = drn.getDocument().get(drn.getRange().getOffset(),
drn.getRange().getLength());
if (ignoreWhitespace) {
if (matcher == null)
matcher = whitespace.matcher(retval);
else
matcher.reset(retval);
retval = matcher.replaceAll("");
}
} catch (BadLocationException ble) {
assertNull(ble);
}
return retval;
}
protected IStructureComparator createStructureComparator(
Object element, IDocument document,
ISharedDocumentAdapter sharedDocumentAdapter,
IProgressMonitor monitor) throws CoreException {
return new DocumentRangeNode(1, "ID", document, 0,
document.getLength());
}
};
DocumentRangeNode l, r;
for (int i = 0; i < docs.length; i++)
for (int j = i + 1; j < docs.length; j++)
for (int k = 0; k < filters.length; k++) {
l = new DocumentRangeNode(1, "ID", docs[i], 0,
docs[i].getLength());
r = new DocumentRangeNode(1, "ID", docs[j], 0,
docs[j].getLength());
creator.contentsEquals(l, 'L', r, 'R', true, filters[k]);
Assert.assertFalse(creator.contentsEquals(l, 'L', r, 'R',
false, filters[k]));
Assert.assertTrue(creator.contentsEquals(l, 'L', r, 'R',
true, filters[k]));
}
}
}
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