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/*******************************************************************************
* Copyright (c) 2012, 2013 Ericsson
*
* 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:
* Bernd Hufmann - Initial API and implementation
* Alexandre Montplaisir - Port to JUnit4
*******************************************************************************/
package org.eclipse.linuxtools.tmf.core.tests.trace.indexer.checkpoint;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.List;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
import org.eclipse.linuxtools.tmf.core.tests.TmfCoreTestPlugin;
import org.eclipse.linuxtools.tmf.core.tests.shared.TmfTestTrace;
import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp;
import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
import org.eclipse.linuxtools.tmf.core.trace.indexer.checkpoint.TmfCheckpointIndexer;
import org.eclipse.linuxtools.tmf.core.trace.indexer.checkpoint.ITmfCheckpoint;
import org.eclipse.linuxtools.tmf.tests.stubs.trace.TmfEmptyTraceStub;
import org.eclipse.linuxtools.tmf.tests.stubs.trace.TmfTraceStub;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Test suite for the TmfCheckpointIndexer class (events with same
* timestamp around checkpoint).
*/
@SuppressWarnings("javadoc")
public class TmfCheckpointIndexTest2 {
// ------------------------------------------------------------------------
// Variables
// ------------------------------------------------------------------------
private static final int BLOCK_SIZE = 100;
private static final int NB_EVENTS = 702;
private static TestTrace fTrace = null;
private static EmptyTestTrace fEmptyTrace = null;
// ------------------------------------------------------------------------
// Housekeeping
// ------------------------------------------------------------------------
@Before
public void setUp() {
// Trace has 3 events at t=101 at rank 99, 100, 101
// Trace has events with same timestamp (ts=102) for ranks 102..702 -> 2 checkpoints with same timestamp are created
setupTrace(TmfTestTrace.A_TEST_10K2.getFullPath());
}
@After
public void tearDown() {
fTrace.dispose();
fTrace = null;
fEmptyTrace.dispose();
fEmptyTrace = null;
}
// ------------------------------------------------------------------------
// Helper classes
// ------------------------------------------------------------------------
private static class TestIndexer extends TmfCheckpointIndexer {
@SuppressWarnings({ })
public TestIndexer(TestTrace testTrace) {
super(testTrace, BLOCK_SIZE);
}
@SuppressWarnings({ })
public TestIndexer(EmptyTestTrace testTrace) {
super(testTrace, BLOCK_SIZE);
}
public List<ITmfCheckpoint> getCheckpoints() {
return getTraceIndex();
}
}
private class TestTrace extends TmfTraceStub {
public TestTrace(String path, int blockSize) throws TmfTraceException {
super(path, blockSize, false, null, null);
setIndexer(new TestIndexer(this));
}
@Override
public TestIndexer getIndexer() {
return (TestIndexer) super.getIndexer();
}
}
private class EmptyTestTrace extends TmfEmptyTraceStub {
public EmptyTestTrace() {
super();
setIndexer(new TestIndexer(this));
}
@Override
public TestIndexer getIndexer() {
return (TestIndexer) super.getIndexer();
}
}
// ------------------------------------------------------------------------
// Helper functions
// ------------------------------------------------------------------------
private synchronized void setupTrace(final String path) {
if (fTrace == null) {
try {
final URL location = FileLocator.find(TmfCoreTestPlugin.getDefault().getBundle(), new Path(path), null);
final File test = new File(FileLocator.toFileURL(location).toURI());
fTrace = new TestTrace(test.toURI().getPath(), BLOCK_SIZE);
fTrace.indexTrace(true);
} catch (final TmfTraceException e) {
e.printStackTrace();
} catch (final URISyntaxException e) {
e.printStackTrace();
} catch (final IOException e) {
e.printStackTrace();
}
}
if (fEmptyTrace == null) {
fEmptyTrace = new EmptyTestTrace();
fEmptyTrace.indexTrace(true);
}
}
// ------------------------------------------------------------------------
// Verify checkpoints
// ------------------------------------------------------------------------
@Test
public void testTmfTraceMultiTimestamps() {
assertEquals("getCacheSize", BLOCK_SIZE, fTrace.getCacheSize());
assertEquals("getTraceSize", NB_EVENTS, fTrace.getNbEvents());
assertEquals("getRange-start", 1, fTrace.getTimeRange().getStartTime().getValue());
assertEquals("getRange-end", 102, fTrace.getTimeRange().getEndTime().getValue());
assertEquals("getStartTime", 1, fTrace.getStartTime().getValue());
assertEquals("getEndTime", 102, fTrace.getEndTime().getValue());
List<ITmfCheckpoint> checkpoints = fTrace.getIndexer().getCheckpoints();
assertTrue("Checkpoints exist", checkpoints != null);
assertEquals("Checkpoints size", NB_EVENTS / BLOCK_SIZE + 1, checkpoints.size());
// Trace has 3 events with same timestamp (ts=101) at rank 99, 100, 101
// Verify that the event at rank=99 is returned when seeking to ts=101 (first event with this timestamp)
// and not the event at checkpoint boundary
TmfTimestamp seekTs = new TmfTimestamp(101, -3, 0);
ITmfContext ctx = fTrace.seekEvent(seekTs);
ITmfEvent event = fTrace.getNext(ctx);
assertEquals(99, ctx.getRank());
assertEquals(0, seekTs.compareTo(event.getTimestamp(), false));
event = fTrace.getNext(ctx);
assertEquals(100, ctx.getRank());
assertEquals(0, seekTs.compareTo(event.getTimestamp(), false));
event = fTrace.getNext(ctx);
assertEquals(101, ctx.getRank());
assertEquals(0, seekTs.compareTo(event.getTimestamp(), false));
// Trace has events with same timestamp (ts=102) for ranks 102..702 -> 2 checkpoints with same timestamp are created
// Verify that the event at rank=102 is returned when seeking to ts=102 (first event with this timestamp)
// and not the event at checkpoint boundary
seekTs = new TmfTimestamp(102, -3, 0);
ctx = fTrace.seekEvent(seekTs);
event = fTrace.getNext(ctx);
assertEquals(102, ctx.getRank());
assertEquals(0, seekTs.compareTo(event.getTimestamp(), false));
// Verify seek to first checkpoint
seekTs = new TmfTimestamp(1, -3, 0);
ctx = fTrace.seekEvent(seekTs);
event = fTrace.getNext(ctx);
assertEquals(1, ctx.getRank());
assertEquals(0, seekTs.compareTo(event.getTimestamp(), false));
// Verify seek to timestamp before first event
seekTs = new TmfTimestamp(0, -3, 0);
ctx = fTrace.seekEvent(seekTs);
event = fTrace.getNext(ctx);
assertEquals(1, ctx.getRank());
assertEquals(0, new TmfTimestamp(1, -3, 0).compareTo(event.getTimestamp(), false));
// Verify seek to timestamp between first and second checkpoint
seekTs = new TmfTimestamp(50, -3, 0);
ctx = fTrace.seekEvent(seekTs);
event = fTrace.getNext(ctx);
assertEquals(50, ctx.getRank());
assertEquals(0, seekTs.compareTo(event.getTimestamp(), false));
// Verify seek to timestamp after last event in trace
seekTs = new TmfTimestamp(103, -3, 0);
ctx = fTrace.seekEvent(seekTs);
event = fTrace.getNext(ctx);
assertEquals(-1, ctx.getRank());
assertNull(event);
}
}
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