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   1 /*
   2  * Copyright (C) 2015, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 package org.lttng.ust.agent.integration.events;
  20
  21 import static org.junit.Assert.assertEquals;
  22 import static org.junit.Assert.assertNotNull;
  23 import static org.junit.Assert.assertTrue;
  24
  25 import java.util.Arrays;
  26 import java.util.List;
  27
  28 import org.junit.After;
  29 import org.junit.Before;
  30 import org.junit.Test;
  31 import org.junit.runner.RunWith;
  32 import org.lttng.tools.ILttngSession;
  33 import org.lttng.tools.ILttngSession.Domain;
  34 import org.lttng.ust.agent.ILttngHandler;
  35 import org.lttng.ust.agent.utils.TestPrintRunner;
  36
  37 /**
  38  * Base abstract class to implement all sorts of integration tests verifying the
  39  * presence of enabled events in resulting traces.
  40  */
  41 @RunWith(TestPrintRunner.class)
  42 public abstract class EnabledEventsITBase {
  43
  44     protected static final String EVENT_NAME_A = "EventA";
  45     protected static final String EVENT_NAME_B = "EventAB";
  46     protected static final String EVENT_NAME_C = "EventABC";
  47     protected static final String EVENT_NAME_D = "EventABCDÉ";
  48
  49     private ILttngSession session;
  50
  51     /* Fields defined by the sub-class */
  52     protected ILttngHandler handlerA;
  53     protected ILttngHandler handlerB;
  54     protected ILttngHandler handlerC;
  55
  56     protected abstract Domain getDomain();
  57
  58     protected abstract boolean closeHandlers();
  59
  60     protected abstract void sendEventsToLoggers();
  61
  62     /**
  63      * Send one event using a localized API to logger/handler A.
  64      */
  65     protected abstract void sendLocalizedEvent(String rawString, Object[] params);
  66
  67     /**
  68      * Base test setup
  69      */
  70     @Before
  71     public void testSetup() {
  72         session = ILttngSession.createSession(null, getDomain());
  73     }
  74
  75     /**
  76      * Base test teardown
  77      */
  78     @After
  79     public void testTeardown() {
  80         session.close();
  81
  82         if (closeHandlers()) {
  83             handlerA.close();
  84             handlerB.close();
  85             handlerC.close();
  86         }
  87
  88         handlerA = null;
  89         handlerB = null;
  90         handlerC = null;
  91     }
  92
  93     /**
  94      * Test sending events on the Java side, but no events enabled in the
  95      * tracing session. There should be nothing in the resulting trace, and
  96      * handlers should not have logged anything.
  97      */
  98     @Test
  99     public void testNoEvents() {
 100         assertTrue(session.start());
 101
 102         sendEventsToLoggers();
 103
 104         assertTrue(session.stop());
 105
 106         List<String> output = session.view();
 107         assertNotNull(output);
 108         assertTrue(output.isEmpty());
 109
 110         assertEquals(0, handlerA.getEventCount());
 111         assertEquals(0, handlerB.getEventCount());
 112         assertEquals(0, handlerC.getEventCount());
 113     }
 114
 115     /**
 116      * Test sending events on the Java side, and all events enabled in the
 117      * tracing session. All handlers should have sent their events.
 118      */
 119     @Test
 120     public void testAllEvents() {
 121         assertTrue(session.enableAllEvents());
 122         assertTrue(session.start());
 123
 124         sendEventsToLoggers();
 125
 126         assertTrue(session.stop());
 127
 128         List<String> output = session.view();
 129         assertNotNull(output);
 130         assertEquals(30, output.size()); // loggerD has no handler attached
 131
 132         assertEquals(10, handlerA.getEventCount());
 133         assertEquals(10, handlerB.getEventCount());
 134         assertEquals(10, handlerC.getEventCount());
 135     }
 136
 137     /**
 138      * Test sending events on the Java side, with only some of them enabled in
 139      * the tracing session. Only the subset that is enabled should be received.
 140      */
 141     @Test
 142     public void testSomeEvents() {
 143         assertTrue(session.enableEvents(EVENT_NAME_A, EVENT_NAME_C, EVENT_NAME_D));
 144         assertTrue(session.start());
 145
 146         sendEventsToLoggers();
 147
 148         assertTrue(session.stop());
 149
 150         List<String> output = session.view();
 151         assertNotNull(output);
 152         assertEquals(20, output.size());
 153
 154         assertEquals(10, handlerA.getEventCount());
 155         assertEquals(0, handlerB.getEventCount());
 156         assertEquals(10, handlerC.getEventCount());
 157     }
 158
 159     /**
 160      * Test with all events enabled (-a), plus some other events added manually.
 161      * Events should still be retained, but there should be no duplicates.
 162      */
 163     @Test
 164     public void testAllEventsAndSome() {
 165         assertTrue(session.enableAllEvents());
 166         assertTrue(session.enableEvents(EVENT_NAME_A, EVENT_NAME_B));
 167         assertTrue(session.start());
 168
 169         sendEventsToLoggers();
 170
 171         assertTrue(session.stop());
 172
 173         List<String> output = session.view();
 174         assertNotNull(output);
 175         assertEquals(30, output.size());
 176
 177         assertEquals(10, handlerA.getEventCount());
 178         assertEquals(10, handlerB.getEventCount());
 179         assertEquals(10, handlerC.getEventCount());
 180     }
 181
 182     /**
 183      * Same as {@link #testSomeEvents()}, but some events were enabled first,
 184      * then disabled. Makes sure the enabled-event refcounting works properly.
 185      */
 186     @Test
 187     public void testSomeEventsAfterDisabling() {
 188         assertTrue(session.enableEvents(EVENT_NAME_A, EVENT_NAME_C, EVENT_NAME_D));
 189         assertTrue(session.disableEvents(EVENT_NAME_C));
 190         assertTrue(session.start());
 191
 192         sendEventsToLoggers();
 193
 194         assertTrue(session.stop());
 195
 196         List<String> output = session.view();
 197         assertNotNull(output);
 198         assertEquals(10, output.size());
 199
 200         assertEquals(10, handlerA.getEventCount());
 201         assertEquals(0, handlerB.getEventCount());
 202         assertEquals(0, handlerC.getEventCount());
 203     }
 204
 205     /**
 206      * Test enabling an event prefix, which means an event name ending with a *,
 207      * to match all events starting with this name.
 208      */
 209     @Test
 210     public void testEventPrefix() {
 211         // should match event/loggers B and C, but not A.
 212         assertTrue(session.enableEvents("EventAB*"));
 213         assertTrue(session.start());
 214
 215         sendEventsToLoggers();
 216
 217         assertTrue(session.stop());
 218
 219         List<String> output = session.view();
 220         assertNotNull(output);
 221         assertEquals(20, output.size());
 222
 223         assertEquals(0, handlerA.getEventCount());
 224         assertEquals(10, handlerB.getEventCount());
 225         assertEquals(10, handlerC.getEventCount());
 226     }
 227
 228     /**
 229      * Same as {@link #testEventPrefix()}, but with multiple prefixes that
 230      * overlap. There should not be any duplicate events in the trace or in the
 231      * handlers.
 232      */
 233     @Test
 234     public void testEventPrefixOverlapping() {
 235         // should still match B and C
 236         assertTrue(session.enableEvents("EventAB*", "EventABC*"));
 237         assertTrue(session.start());
 238
 239         sendEventsToLoggers();
 240
 241         assertTrue(session.stop());
 242
 243         List<String> output = session.view();
 244         assertNotNull(output);
 245         assertEquals(20, output.size());
 246
 247         assertEquals(0, handlerA.getEventCount());
 248         assertEquals(10, handlerB.getEventCount());
 249         assertEquals(10, handlerC.getEventCount());
 250     }
 251
 252     /**
 253      * Test with all events enabled (-a), plus an event prefix. Once again,
 254      * there should be no duplicates.
 255      */
 256     @Test
 257     public void testAllEventsAndPrefix() {
 258         assertTrue(session.enableAllEvents());
 259         assertTrue(session.enableEvents("EventAB*"));
 260         assertTrue(session.start());
 261
 262         sendEventsToLoggers();
 263
 264         assertTrue(session.stop());
 265
 266         List<String> output = session.view();
 267         assertNotNull(output);
 268         assertEquals(30, output.size());
 269
 270         assertEquals(10, handlerA.getEventCount());
 271         assertEquals(10, handlerB.getEventCount());
 272         assertEquals(10, handlerC.getEventCount());
 273     }
 274
 275     /**
 276      * Test sending a localized message.
 277      */
 278     @Test
 279     public void testLocalizedMessage() {
 280         Integer value1 = Integer.valueOf(10);
 281         List<Integer> value2 = Arrays.asList(Integer.valueOf(1000), Integer.valueOf(1001), Integer.valueOf(1002));
 282
 283         assertTrue(session.enableAllEvents());
 284         assertTrue(session.start());
 285
 286         sendLocalizedEvent("Message with a localized value: {0} and some others: {1}",
 287                 new Object[] { value1, value2 });
 288
 289         assertTrue(session.stop());
 290         assertEquals(1, handlerA.getEventCount());
 291
 292         List<String> output = session.view();
 293
 294         assertNotNull(output);
 295         assertEquals(1, output.size());
 296         assertTrue(output.get(0).contains("msg = \"Message with a localized value: 10 and some others: [1000, 1001, 1002]\""));
 297     }
 298 }