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Diffstat (limited to 'tests/org.eclipse.compare.tests/src/org/eclipse/compare/tests/performance/RangeDifferencerTest.java')
-rw-r--r--tests/org.eclipse.compare.tests/src/org/eclipse/compare/tests/performance/RangeDifferencerTest.java90
1 files changed, 90 insertions, 0 deletions
diff --git a/tests/org.eclipse.compare.tests/src/org/eclipse/compare/tests/performance/RangeDifferencerTest.java b/tests/org.eclipse.compare.tests/src/org/eclipse/compare/tests/performance/RangeDifferencerTest.java
new file mode 100644
index 000000000..ff211394a
--- /dev/null
+++ b/tests/org.eclipse.compare.tests/src/org/eclipse/compare/tests/performance/RangeDifferencerTest.java
@@ -0,0 +1,90 @@
+/*******************************************************************************
+ * Copyright (c) 2005 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.performance;
+
+import org.eclipse.compare.contentmergeviewer.ITokenComparator;
+import org.eclipse.compare.internal.DocLineComparator;
+import org.eclipse.compare.rangedifferencer.RangeDifference;
+import org.eclipse.compare.rangedifferencer.RangeDifferencer;
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.jface.text.Document;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.test.performance.PerformanceTestCase;
+
+
+public class RangeDifferencerTest extends PerformanceTestCase {
+
+ public RangeDifferencerTest(String name) {
+ super(name);
+ }
+
+ /*
+ * Creates document with 5000 lines.
+ * Parameter code determines where additional lines are added.
+ */
+ private IDocument createDocument(int code) {
+ StringBuffer sb= new StringBuffer();
+ for (int i= 0; i < 5000; i++) {
+ sb.append("line "); //$NON-NLS-1$
+ sb.append(Integer.toString(i));
+ sb.append('\n');
+
+ int mod= i % 10;
+ switch (code) {
+ case 1:
+ if (mod == 1)
+ sb.append("outgoing\n"); //$NON-NLS-1$
+ if (mod == 4)
+ sb.append("conflict1\n"); //$NON-NLS-1$
+ break;
+ case 2:
+ if (mod == 7)
+ sb.append("incoming\n"); //$NON-NLS-1$
+ if (mod == 4)
+ sb.append("conflict2\n"); //$NON-NLS-1$
+ break;
+ }
+ }
+ return new Document(sb.toString());
+ }
+
+ public void testLargeDocument() {
+
+ ITokenComparator ancestor= new DocLineComparator(createDocument(0), null, false);
+ ITokenComparator left= new DocLineComparator(createDocument(1), null, false);
+ ITokenComparator right= new DocLineComparator(createDocument(2), null, false);
+
+ RangeDifference[] diffs= null;
+
+ // a warm up run
+ diffs= RangeDifferencer.findRanges(new NullProgressMonitor(), ancestor, left, right);
+
+ // assert that result correct
+ for (int i= 0; i < diffs.length-6; i+= 6) {
+ assertEquals(diffs[i+0].kind(), RangeDifference.NOCHANGE);
+ assertEquals(diffs[i+1].kind(), RangeDifference.LEFT);
+ assertEquals(diffs[i+2].kind(), RangeDifference.NOCHANGE);
+ assertEquals(diffs[i+3].kind(), RangeDifference.CONFLICT);
+ assertEquals(diffs[i+4].kind(), RangeDifference.NOCHANGE);
+ assertEquals(diffs[i+5].kind(), RangeDifference.RIGHT);
+ }
+
+ // now do 3 performance runs
+ for (int count= 0; count < 3; count++) {
+ startMeasuring();
+ RangeDifferencer.findRanges(new NullProgressMonitor(), ancestor, left, right);
+ stopMeasuring();
+ }
+
+ commitMeasurements();
+ assertPerformance();
+ }
+}

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