src/test/java/org/lttng/ust/agent/integration/jul/JulLegacyApiTest.java

   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.jul;
  20
  21 import static org.junit.Assert.assertEquals;
  22 import static org.junit.Assert.assertNotNull;
  23 import static org.junit.Assert.assertTrue;
  24 import static org.junit.Assert.fail;
  25 import static org.junit.Assume.assumeTrue;
  26
  27 import java.lang.reflect.Field;
  28 import java.util.List;
  29 import java.util.logging.Level;
  30 import java.util.logging.Logger;
  31
  32 import org.junit.After;
  33 import org.junit.AfterClass;
  34 import org.junit.Before;
  35 import org.junit.BeforeClass;
  36 import org.junit.Test;
  37 import org.junit.runner.RunWith;
  38 import org.lttng.ust.agent.ILttngHandler;
  39 import org.lttng.ust.agent.LTTngAgent;
  40 import org.lttng.ust.agent.utils.LttngSession;
  41 import org.lttng.ust.agent.utils.LttngSession.Domain;
  42 import org.lttng.ust.agent.utils.MiscTestUtils;
  43 import org.lttng.ust.agent.utils.TestPrintRunner;
  44
  45 /**
  46  * Enabled events test for the LTTng-UST JUL log handler, using the legacy API.
  47  */
  48 @RunWith(TestPrintRunner.class)
  49 @SuppressWarnings("deprecation")
  50 public class JulLegacyApiTest {
  51
  52     private static final Domain DOMAIN = Domain.JUL;
  53
  54     private static final String EVENT_NAME_A = "EventA";
  55     private static final String EVENT_NAME_B = "EventB";
  56
  57     private LttngSession session;
  58
  59     private Logger loggerA;
  60     private Logger loggerB;
  61
  62     /**
  63      * Class setup
  64      */
  65     @BeforeClass
  66     public static void julClassSetup() {
  67         /* Skip tests if we can't find the JNI library or lttng-tools */
  68         assumeTrue(MiscTestUtils.checkForJulLibrary());
  69         assumeTrue(MiscTestUtils.checkForLttngTools(Domain.JUL));
  70
  71         LttngSession.destroyAllSessions();
  72     }
  73
  74     /**
  75      * Class cleanup
  76      */
  77     @AfterClass
  78     public static void julClassCleanup() {
  79         LttngSession.deleteAllTracee();
  80     }
  81
  82     /**
  83      * Test setup
  84      */
  85     @Before
  86     public void setup() {
  87         loggerA = Logger.getLogger(EVENT_NAME_A);
  88         LTTngAgent.getLTTngAgent();
  89         loggerB = Logger.getLogger(EVENT_NAME_B);
  90
  91         loggerA.setLevel(Level.ALL);
  92         loggerB.setLevel(Level.ALL);
  93
  94         session = new LttngSession(null, DOMAIN);
  95     }
  96
  97     /**
  98      * Test cleanup
  99      */
 100     @After
 101     public void tearDown() {
 102         session.close();
 103
 104         LTTngAgent.dispose();
 105
 106         loggerA = null;
 107         loggerB = null;
 108     }
 109
 110     /**
 111      * Test tracing with no events enabled in the tracing session.
 112      */
 113     @Test
 114     public void testNoEvents() {
 115         assertTrue(session.start());
 116
 117         JulTestUtils.send10EventsTo(loggerA);
 118         JulTestUtils.send10EventsTo(loggerB);
 119
 120         assertTrue(session.stop());
 121
 122         List<String> output = session.view();
 123         assertNotNull(output);
 124         assertTrue(output.isEmpty());
 125
 126         ILttngHandler handler = getAgentHandler();
 127         assertEquals(0, handler.getEventCount());
 128     }
 129
 130     /**
 131      * Test tracing with all events enabled (-j -a) in the tracing session.
 132      */
 133     @Test
 134     public void testAllEvents() {
 135         assertTrue(session.enableAllEvents());
 136         assertTrue(session.start());
 137
 138         JulTestUtils.send10EventsTo(loggerA);
 139         JulTestUtils.send10EventsTo(loggerB);
 140
 141         assertTrue(session.stop());
 142
 143         List<String> output = session.view();
 144         assertNotNull(output);
 145         assertEquals(20, output.size());
 146
 147         ILttngHandler handler = getAgentHandler();
 148         assertEquals(20, handler.getEventCount());
 149     }
 150
 151     /**
 152      * Test tracing with a subset of events enabled in the tracing session.
 153      */
 154     @Test
 155     public void testSomeEvents() {
 156         assertTrue(session.enableEvents(EVENT_NAME_A));
 157         assertTrue(session.start());
 158
 159         JulTestUtils.send10EventsTo(loggerA);
 160         JulTestUtils.send10EventsTo(loggerB);
 161
 162         assertTrue(session.stop());
 163
 164         List<String> output = session.view();
 165         assertNotNull(output);
 166         assertEquals(10, output.size());
 167
 168         ILttngHandler handler = getAgentHandler();
 169         assertEquals(10, handler.getEventCount());
 170     }
 171
 172     /**
 173      * Get the singleton JUL Handler currently managed by the LTTngAgent. It is
 174      * not public, so we need reflection to access it.
 175      *
 176      * @return The agent's JUL handler
 177      */
 178     private static ILttngHandler getAgentHandler() {
 179         try {
 180             Field julHandlerField = LTTngAgent.class.getDeclaredField("julHandler");
 181             julHandlerField.setAccessible(true);
 182             return (ILttngHandler) julHandlerField.get(LTTngAgent.getLTTngAgent());
 183         } catch (ReflectiveOperationException | SecurityException e) {
 184             fail();
 185             return null;
 186         }
 187     }
 188
 189 }
 190