git.lttng.org Git - lttng-ust-java-tests.git/blob

   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 import static org.junit.Assert.fail;
  25
  26 import java.lang.reflect.Field;
  27 import java.util.List;
  28
  29 import org.apache.log4j.Level;
  30 import org.apache.log4j.Logger;
  31 import org.junit.After;
  32 import org.junit.AfterClass;
  33 import org.junit.Before;
  34 import org.junit.BeforeClass;
  35 import org.junit.Test;
  36 import org.junit.runner.RunWith;
  37 import org.lttng.tools.ILttngSession;
  38 import org.lttng.tools.ILttngSession.Domain;
  39 import org.lttng.ust.agent.ILttngHandler;
  40 import org.lttng.ust.agent.LTTngAgent;
  41 import org.lttng.ust.agent.utils.Log4jTestUtils;
  42 import org.lttng.ust.agent.utils.TestPrintRunner;
  43
  44 /**
  45  * Enabled events test for the LTTng-UST Log4j log handler, using the legacy
  46  * API.
  47  */
  48 @RunWith(TestPrintRunner.class)
  49 @SuppressWarnings("deprecation")
  50 public class Log4jLegacyApiIT {
  51
  52     private static final Domain DOMAIN = Domain.LOG4J;
  53
  54     private static final String EVENT_NAME_A = "EventA";
  55     private static final String EVENT_NAME_B = "EventB";
  56
  57     private ILttngSession session;
  58
  59     private Logger loggerA;
  60     private Logger loggerB;
  61
  62     /**
  63      * Class setup
  64      */
  65     @BeforeClass
  66     public static void log4jClassSetup() {
  67         Log4jTestUtils.testClassSetup();
  68     }
  69
  70     /**
  71      * Class cleanup
  72      */
  73     @AfterClass
  74     public static void log4jClassCleanup() {
  75         Log4jTestUtils.testClassCleanup();
  76     }
  77
  78     /**
  79      * Test setup
  80      */
  81     @Before
  82     public void setup() {
  83         loggerA = Logger.getLogger(EVENT_NAME_A);
  84         LTTngAgent.getLTTngAgent();
  85         loggerB = Logger.getLogger(EVENT_NAME_B);
  86
  87         loggerA.setLevel(Level.ALL);
  88         loggerB.setLevel(Level.ALL);
  89
  90         session = ILttngSession.createSession(null, DOMAIN);
  91     }
  92
  93     /**
  94      * Test cleanup
  95      */
  96     @After
  97     public void tearDown() {
  98         session.close();
  99
 100         LTTngAgent.dispose();
 101
 102         loggerA = null;
 103         loggerB = null;
 104     }
 105
 106     /**
 107      * Test tracing with no events enabled in the tracing session.
 108      */
 109     @Test
 110     public void testNoEvents() {
 111         assertTrue(session.start());
 112
 113         Log4jTestUtils.send10Events(loggerA);
 114         Log4jTestUtils.send10Events(loggerB);
 115
 116         assertTrue(session.stop());
 117
 118         List<String> output = session.view();
 119         assertNotNull(output);
 120         assertTrue(output.isEmpty());
 121
 122         ILttngHandler handler = getAgentHandler();
 123         assertEquals(0, handler.getEventCount());
 124     }
 125
 126     /**
 127      * Test tracing with all events enabled (-l -a) in the tracing session.
 128      */
 129     @Test
 130     public void testAllEvents() {
 131         assertTrue(session.enableAllEvents());
 132         assertTrue(session.start());
 133
 134         Log4jTestUtils.send10Events(loggerA);
 135         Log4jTestUtils.send10Events(loggerB);
 136
 137         assertTrue(session.stop());
 138
 139         List<String> output = session.view();
 140         assertNotNull(output);
 141         assertEquals(20, output.size());
 142
 143         ILttngHandler handler = getAgentHandler();
 144         assertEquals(20, handler.getEventCount());
 145     }
 146
 147     /**
 148      * Test tracing with a subset of events enabled in the tracing session.
 149      */
 150     @Test
 151     public void testSomeEvents() {
 152         assertTrue(session.enableEvents(EVENT_NAME_A));
 153         assertTrue(session.start());
 154
 155         Log4jTestUtils.send10Events(loggerA);
 156         Log4jTestUtils.send10Events(loggerB);
 157
 158         assertTrue(session.stop());
 159
 160         List<String> output = session.view();
 161         assertNotNull(output);
 162         assertEquals(10, output.size());
 163
 164         ILttngHandler handler = getAgentHandler();
 165         assertEquals(10, handler.getEventCount());
 166     }
 167
 168     /**
 169      * Get the singleton Log4j Handler currently managed by the LTTngAgent. It
 170      * is not public, so we need reflection to access it.
 171      *
 172      * @return The agent's Log4j handler
 173      */
 174     private static ILttngHandler getAgentHandler() {
 175         try {
 176             Field log4jAppenderField = LTTngAgent.class.getDeclaredField("log4jAppender");
 177             log4jAppenderField.setAccessible(true);
 178             return (ILttngHandler) log4jAppenderField.get(LTTngAgent.getLTTngAgent());
 179         } catch (ReflectiveOperationException | SecurityException e) {
 180             fail(e.getMessage());
 181             return null;
 182         }
 183     }
 184
 185 }
 186