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/*******************************************************************************
* Copyright (c) 2000, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.compare.tests;
import java.util.HashMap;
import junit.framework.TestCase;
import org.eclipse.compare.ICompareFilter;
import org.eclipse.compare.internal.DocLineComparator;
import org.eclipse.compare.rangedifferencer.IRangeComparator;
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 DocLineComparatorTest extends TestCase {
public DocLineComparatorTest(String name) {
super(name);
}
protected void setUp() throws Exception {
// empty
}
protected void tearDown() throws Exception {
super.tearDown();
}
public void testRangesEqual() {
IDocument doc1= new Document();
doc1.set("if (s.strip))"); //$NON-NLS-1$
IDocument doc2= new Document();
doc2.set("if (s.strip)"); //$NON-NLS-1$
IRangeComparator comp1= new DocLineComparator(doc1, null, true);
IRangeComparator comp2= new DocLineComparator(doc2, null, true);
Assert.assertFalse(comp1.rangesEqual(0, comp2, 0));
}
public void testWhitespaceAtEnd() {
IDocument doc1= new Document();
doc1.set("if (s.strip))"); //$NON-NLS-1$
IDocument doc2= new Document();
doc2.set("if (s.strip)) "); //$NON-NLS-1$
IRangeComparator comp1= new DocLineComparator(doc1, null, true);
IRangeComparator comp2= new DocLineComparator(doc2, null, true);
Assert.assertTrue(comp1.rangesEqual(0, comp2, 0));
}
public void testOneCompareFilter() {
IDocument doc1 = new Document();
doc1.set("if (s.strip))"); //$NON-NLS-1$
IDocument doc2 = new Document();
doc2.set("IF (S.stRIp))"); //$NON-NLS-1$
IDocument doc3 = new Document();
doc3.set("IF (S.stRIp)) "); //$NON-NLS-1$
ICompareFilter filter = new ICompareFilter() {
public void setInput(Object input, Object ancestor, Object left,
Object right) {
// EMPTY
}
public IRegion[] getFilteredRegions(HashMap lineComparison) {
return new IRegion[] { new Region(0, 2), new Region(4, 1),
new Region(8, 2) };
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return false;
}
};
IRangeComparator comp1 = new DocLineComparator(doc1, null, false,
new ICompareFilter[] { filter }, 'L');
IRangeComparator comp2 = new DocLineComparator(doc2, null, false,
new ICompareFilter[] { filter }, 'R');
Assert.assertTrue(comp1.rangesEqual(0, comp2, 0));
IRangeComparator comp3 = new DocLineComparator(doc1, null, true,
new ICompareFilter[] { filter }, 'L');
IRangeComparator comp4 = new DocLineComparator(doc3, null, true,
new ICompareFilter[] { filter }, 'R');
Assert.assertTrue(comp3.rangesEqual(0, comp4, 0));
IRangeComparator comp5 = new DocLineComparator(doc1, null, false,
new ICompareFilter[] { filter }, 'L');
IRangeComparator comp6 = new DocLineComparator(doc3, null, false,
new ICompareFilter[] { filter }, 'R');
Assert.assertFalse(comp5.rangesEqual(0, comp6, 0));
}
public void testMultipleCompareFilters() {
IDocument doc1 = new Document();
doc1.set("if (s.strip))"); //$NON-NLS-1$
IDocument doc2 = new Document();
doc2.set("IF (S.stRIp))"); //$NON-NLS-1$
ICompareFilter filter1 = new ICompareFilter() {
public void setInput(Object input, Object ancestor, Object left,
Object right) {
// EMPTY
}
public IRegion[] getFilteredRegions(HashMap lineComparison) {
return new IRegion[] { new Region(0, 2) };
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return false;
}
};
ICompareFilter filter2 = new ICompareFilter() {
public void setInput(Object input, Object ancestor, Object left,
Object right) {
// EMPTY
}
public IRegion[] getFilteredRegions(HashMap lineComparison) {
return new IRegion[] { new Region(4, 1) };
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return false;
}
};
ICompareFilter filter3 = new ICompareFilter() {
public void setInput(Object input, Object ancestor, Object left,
Object right) {
// EMPTY
}
public IRegion[] getFilteredRegions(HashMap lineComparison) {
return new IRegion[] { new Region(8, 2) };
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return false;
}
};
IRangeComparator comp1 = new DocLineComparator(doc1, null, false,
new ICompareFilter[] { filter1, filter2, filter3 }, 'L');
IRangeComparator comp2 = new DocLineComparator(doc2, null, false,
new ICompareFilter[] { filter1, filter2, filter3 }, 'R');
Assert.assertTrue(comp1.rangesEqual(0, comp2, 0));
IRangeComparator comp3 = new DocLineComparator(doc1, null, false,
new ICompareFilter[] { filter2, filter3 }, 'L');
IRangeComparator comp4 = new DocLineComparator(doc2, null, false,
new ICompareFilter[] { filter2, filter3 }, 'R');
Assert.assertFalse(comp3.rangesEqual(0, comp4, 0));
}
public void testWhitespace() {
IDocument[] docs = new IDocument[6];
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[0].set("if (s.strip))\r\n");//$NON-NLS-1$
docs[1].set("if (s.strip))\n"); //$NON-NLS-1$
docs[2].set("if (s .strip))\n"); //$NON-NLS-1$
docs[3].set("if (s.str ip))\r"); //$NON-NLS-1$
docs[4].set("if (s.strip))"); //$NON-NLS-1$
docs[5].set("if (s.stri p))"); //$NON-NLS-1$
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) {
return new IRegion[] { new Region(0, 2) };
}
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) {
return new IRegion[] { new Region(0, 2) };
}
public boolean isEnabledInitially() {
return false;
}
public boolean canCacheFilteredRegions() {
return false; // not cache-able
}
}
};
IRangeComparator 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 DocLineComparator(docs[i], null, false, filters[k], 'L');
r = new DocLineComparator(docs[j], null, false, filters[k], 'R');
Assert.assertFalse(l.rangesEqual(0, r, 0));
l = new DocLineComparator(docs[i], null, true, filters[k], 'L');
r = new DocLineComparator(docs[j], null, true, filters[k], 'R');
Assert.assertTrue(l.rangesEqual(0, r, 0));
}
}
public void testEmpty() {
IDocument doc1= new Document();
doc1.set(""); //$NON-NLS-1$
IDocument doc2= new Document();
doc2.set(" "); //$NON-NLS-1$
IRangeComparator comp1= new DocLineComparator(doc1, null, true);
IRangeComparator comp2= new DocLineComparator(doc2, null, true);
Assert.assertTrue(comp1.rangesEqual(0, comp2, 0));
}
public void testNoContent() {
IDocument doc= new Document();
IRangeComparator comp1= new DocLineComparator(doc, null, true);
IRangeComparator comp2= new DocLineComparator(doc, new Region(0, doc.getLength()), true);
Assert.assertTrue(comp1.rangesEqual(0, comp2, 0));
Assert.assertEquals(comp1.getRangeCount(), comp2.getRangeCount());
Assert.assertEquals(1, comp2.getRangeCount());
}
public void testOneLine() {
IDocument doc = new Document();
doc.set("line1"); //$NON-NLS-1$
IRangeComparator comp1= new DocLineComparator(doc, null, true);
IRangeComparator comp2= new DocLineComparator(doc, new Region(0, doc.getLength()), true);
Assert.assertEquals(comp1.getRangeCount(), comp2.getRangeCount());
Assert.assertEquals(1, comp2.getRangeCount());
}
public void testTwoLines() {
IDocument doc = new Document();
doc.set("line1\nline2"); //$NON-NLS-1$
IRangeComparator comp1= new DocLineComparator(doc, null, true);
IRangeComparator comp2= new DocLineComparator(doc, new Region(0, doc.getLength()), true);
Assert.assertEquals(comp1.getRangeCount(), comp2.getRangeCount());
Assert.assertEquals(2, comp2.getRangeCount());
IRangeComparator comp3= new DocLineComparator(doc, new Region(0, "line1".length()), true);
Assert.assertEquals(1, comp3.getRangeCount());
comp3= new DocLineComparator(doc, new Region(0, "line1".length()+1), true);
Assert.assertEquals(2, comp3.getRangeCount()); // two lines
}
public void testBug259422() {
IDocument doc = new Document();
doc.set(""); //$NON-NLS-1$
IRangeComparator comp1= new DocLineComparator(doc, null, true);
IRangeComparator comp2= new DocLineComparator(doc, new Region(0, doc.getLength()), true);
Assert.assertEquals(comp1.getRangeCount(), comp2.getRangeCount());
}
}
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