--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2016 EfficiOS Inc., Alexandre Montplaisir
+ *
+ * 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
+ *******************************************************************************/
+
+package org.eclipse.tracecompass.tmf.ctf.core.tests.trace;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertNotEquals;
+
+import java.util.function.Predicate;
+
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.tracecompass.testtraces.ctf.CtfTestTrace;
+import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
+import org.eclipse.tracecompass.tmf.core.trace.ITmfContext;
+import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
+import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils;
+import org.eclipse.tracecompass.tmf.ctf.core.tests.shared.CtfTmfTestTraceUtils;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Tests for the event-searching methods in {@link TmfTraceUtils}.
+ *
+ * @author Alexandre Montplaisir
+ */
+public class TmfTraceUtilsSearchingTest {
+
+ private static final @NonNull CtfTestTrace TEST_TRACE = CtfTestTrace.TRACE2;
+ private static final long START_RANK = 500L;
+
+ private ITmfTrace fTrace;
+ private ITmfEvent fStartEvent;
+
+ /**
+ * Test setup
+ */
+ @Before
+ public void setUp() {
+ fTrace = CtfTmfTestTraceUtils.getTrace(TEST_TRACE);
+
+ ITmfContext ctx = fTrace.seekEvent(START_RANK);
+ fStartEvent = fTrace.getNext(ctx);
+ assertEquals("softirq_raise", fStartEvent.getName());
+ }
+
+ /**
+ * Test cleanup
+ */
+ @After
+ public void tearDown() {
+ if (fTrace != null) {
+ fTrace.dispose();
+ }
+ }
+
+ /**
+ * Test the {@link TmfTraceUtils#getNextEventMatching} method.
+ */
+ @Test
+ public void testNextMatchingEvent() {
+ ITmfTrace trace = fTrace;
+ assertNotNull(trace);
+
+ Predicate<@NonNull ITmfEvent> predicate = event -> event.getName().equals("sched_switch");
+
+ ITmfEvent actualEvent = TmfTraceUtils.getNextEventMatching(trace, START_RANK, predicate);
+
+ ITmfContext ctx = trace.seekEvent(508L); // following sched_switch event
+ ITmfEvent expectedEvent = trace.getNext(ctx);
+
+ assertEquals(expectedEvent, actualEvent);
+ }
+
+ /**
+ * Test the {@link TmfTraceUtils#getNextEventMatching} method, where the
+ * event from which we start the search already matches the criterion (it
+ * should be correctly skipped so we can advance).
+ */
+ @Test
+ public void testNextMatchingEventStartMatches() {
+ ITmfTrace trace = fTrace;
+ assertNotNull(trace);
+
+ Predicate<@NonNull ITmfEvent> predicate = event -> event.getName().equals("softirq_raise");
+ ITmfEvent foundEvent = TmfTraceUtils.getNextEventMatching(trace, START_RANK, predicate);
+
+ assertNotNull(foundEvent);
+ assertNotEquals(fStartEvent, foundEvent);
+ }
+
+ /**
+ * Test the {@link TmfTraceUtils#getPreviousEventMatching} method.
+ */
+ @Test
+ public void testPreviousMatchingEvent() {
+ ITmfTrace trace = fTrace;
+ assertNotNull(trace);
+
+ Predicate<@NonNull ITmfEvent> predicate = event -> event.getName().equals("sched_switch");
+
+ ITmfEvent actualEvent = TmfTraceUtils.getPreviousEventMatching(trace, START_RANK, predicate);
+
+ ITmfContext ctx = trace.seekEvent(455L); // previous sched_switch event
+ ITmfEvent expectedEvent = trace.getNext(ctx);
+
+ assertEquals(expectedEvent, actualEvent);
+ }
+
+ /**
+ * Test the {@link TmfTraceUtils#getPreviousEventMatching} method, where the
+ * event from which we start the search already matches the criterion (it
+ * should be correctly skipped).
+ */
+ @Test
+ public void testPreviousMatchingEventStartMatches() {
+ ITmfTrace trace = fTrace;
+ assertNotNull(trace);
+
+ Predicate<@NonNull ITmfEvent> predicate = event -> event.getName().equals("softirq_raise");
+ ITmfEvent foundEvent = TmfTraceUtils.getPreviousEventMatching(trace, START_RANK, predicate);
+
+ assertNotNull(foundEvent);
+ assertNotEquals(fStartEvent, foundEvent);
+ }
+
+ /**
+ * Test the {@link TmfTraceUtils#getPreviousEventMatching} method with an
+ * event that is expected to take more than one inner request.
+ */
+ @Test
+ public void testPreviousMatchingEventFar() {
+ ITmfTrace trace = fTrace;
+ assertNotNull(trace);
+
+ Predicate<@NonNull ITmfEvent> predicate = event -> event.getName().equals("sys_write");
+ ITmfEvent actualEvent = TmfTraceUtils.getPreviousEventMatching(trace, START_RANK, predicate);
+
+ ITmfContext ctx = trace.seekEvent(387L); // previous sched_switch event
+ ITmfEvent expectedEvent = trace.getNext(ctx);
+
+ assertEquals(expectedEvent, actualEvent);
+ }
+
+ /**
+ * When doing a backwards search near the beginning of the trace (when
+ * startRank < step), make sure that we do not go beyond the start rank.
+ */
+ @Test
+ public void testPreviousMatchingBeginningOfTrace() {
+ ITmfTrace trace = fTrace;
+ assertNotNull(trace);
+
+ final int startRank = 3;
+ ITmfContext ctx = fTrace.seekEvent(startRank);
+ ITmfEvent startEvent = fTrace.getNext(ctx);
+ assertEquals("exit_syscall", startEvent.getName());
+
+ /* There is a sys_mmap at rank 6, it should not be matched! */
+ Predicate<@NonNull ITmfEvent> predicate = event -> event.getName().equals("sys_mmap");
+ ITmfEvent foundEvent = TmfTraceUtils.getPreviousEventMatching(trace, startRank, predicate);
+ assertNull(foundEvent);
+
+ /* Do not match the event itself either, or any later "exit_syscall" */
+ predicate = event -> event.getName().equals("exit_syscall");
+ foundEvent = TmfTraceUtils.getPreviousEventMatching(trace, startRank, predicate);
+ assertNull(foundEvent);
+ }
+}
projects / deliverable / tracecompass.git / blobdiff