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.lttng.ust.agent.ILttngHandler;
  38 import org.lttng.ust.agent.LTTngAgent;
  39 import org.lttng.ust.agent.utils.LttngSession;
  40 import org.lttng.ust.agent.utils.LttngSession.Domain;
  41 import org.lttng.ust.agent.utils.MiscTestUtils;
  42
  43 @SuppressWarnings("deprecation")
  44 public class JulLegacyApiTest {
  45
  46     private static final Domain DOMAIN = Domain.JUL;
  47
  48     private static final String EVENT_NAME_A = "EventA";
  49     private static final String EVENT_NAME_B = "EventB";
  50
  51     private LttngSession session;
  52
  53     private Logger loggerA;
  54     private Logger loggerB;
  55
  56     @BeforeClass
  57     public static void julClassSetup() {
  58         /* Skip tests if we can't find the JNI library or lttng-tools */
  59         assumeTrue(MiscTestUtils.checkForJulLibrary());
  60         assumeTrue(MiscTestUtils.checkForLttngTools(Domain.JUL));
  61
  62         LttngSession.destroyAllSessions();
  63     }
  64
  65     @AfterClass
  66     public static void julClassCleanup() {
  67         LttngSession.deleteAllTracee();
  68     }
  69
  70     @Before
  71     public void setup() {
  72         loggerA = Logger.getLogger(EVENT_NAME_A);
  73         LTTngAgent.getLTTngAgent();
  74         loggerB = Logger.getLogger(EVENT_NAME_B);
  75
  76         loggerA.setLevel(Level.ALL);
  77         loggerB.setLevel(Level.ALL);
  78
  79         session = new LttngSession(null, DOMAIN);
  80     }
  81
  82     @After
  83     public void tearDown() {
  84         session.close();
  85
  86         LTTngAgent.dispose();
  87
  88         loggerA = null;
  89         loggerB = null;
  90     }
  91
  92     @Test
  93     public void testNoEvents() {
  94         assertTrue(session.start());
  95
  96         JulTestUtils.send10EventsTo(loggerA);
  97         JulTestUtils.send10EventsTo(loggerB);
  98
  99         assertTrue(session.stop());
 100
 101         List<String> output = session.view();
 102         assertNotNull(output);
 103         assertTrue(output.isEmpty());
 104
 105         ILttngHandler handler = getAgentHandler();
 106         assertEquals(0, handler.getEventCount());
 107     }
 108
 109     @Test
 110     public void testAllEvents() {
 111         assertTrue(session.enableAllEvents());
 112         assertTrue(session.start());
 113
 114         JulTestUtils.send10EventsTo(loggerA);
 115         JulTestUtils.send10EventsTo(loggerB);
 116
 117         assertTrue(session.stop());
 118
 119         List<String> output = session.view();
 120         assertNotNull(output);
 121         assertEquals(20, output.size());
 122
 123         ILttngHandler handler = getAgentHandler();
 124         assertEquals(20, handler.getEventCount());
 125     }
 126
 127     @Test
 128     public void testSomeEvents() {
 129         assertTrue(session.enableEvents(EVENT_NAME_A));
 130         assertTrue(session.start());
 131
 132         JulTestUtils.send10EventsTo(loggerA);
 133         JulTestUtils.send10EventsTo(loggerB);
 134
 135         assertTrue(session.stop());
 136
 137         List<String> output = session.view();
 138         assertNotNull(output);
 139         assertEquals(10, output.size());
 140
 141         ILttngHandler handler = getAgentHandler();
 142         assertEquals(10, handler.getEventCount());
 143     }
 144
 145     /**
 146      * Get the singleton JUL Handler currently managed by the LTTngAgent. It is
 147      * not public, so we need reflection to access it.
 148      *
 149      * @return The agent's JUL handler
 150      */
 151     private static ILttngHandler getAgentHandler() {
 152         try {
 153             Field julHandlerField = LTTngAgent.class.getDeclaredField("julHandler");
 154             julHandlerField.setAccessible(true);
 155             return (ILttngHandler) julHandlerField.get(LTTngAgent.getLTTngAgent());
 156         } catch (ReflectiveOperationException | SecurityException e) {
 157             fail();
 158             return null;
 159         }
 160     }
 161
 162 }
 163