org.eclipse.linuxtools.lttng2.kernel.core.tests/src/org/eclipse/linuxtools/lttng2/kernel/core/tests/stateprovider/StateSystemFullHistoryTest.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Alexandre Montplaisir - Initial API and implementation
  11  ******************************************************************************/
  12
  13 package org.eclipse.linuxtools.lttng2.kernel.core.tests.stateprovider;
  14
  15 import static org.junit.Assert.assertEquals;
  16 import static org.junit.Assert.assertNotNull;
  17 import static org.junit.Assert.fail;
  18 import static org.junit.Assume.assumeTrue;
  19
  20 import java.io.File;
  21 import java.io.IOException;
  22
  23 import org.eclipse.linuxtools.internal.lttng2.kernel.core.stateprovider.LttngKernelStateProvider;
  24 import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
  25 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateProvider;
  26 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  27 import org.eclipse.linuxtools.tmf.core.statesystem.TmfStateSystemFactory;
  28 import org.junit.AfterClass;
  29 import org.junit.BeforeClass;
  30 import org.junit.Test;
  31
  32 /**
  33  * State system tests using a full history back-end and the LTTng kernel state
  34  * input.
  35  *
  36  * @author Alexandre Montplaisir
  37  */
  38 public class StateSystemFullHistoryTest extends StateSystemTest {
  39
  40     private static File stateFile;
  41     private static File stateFileBenchmark;
  42
  43     /**
  44      * Initialize the test cases (build the history file once for all tests).
  45      */
  46     @BeforeClass
  47     public static void initialize() {
  48         assumeTrue(testTrace.exists());
  49         try {
  50             stateFile = File.createTempFile("test", ".ht");
  51             stateFileBenchmark = File.createTempFile("test", ".ht.benchmark");
  52
  53             input = new LttngKernelStateProvider(testTrace.getTrace());
  54             ssq = TmfStateSystemFactory.newFullHistory(stateFile, input, true);
  55         } catch (IOException e) {
  56             fail();
  57         } catch (TmfTraceException e) {
  58             fail();
  59         }
  60     }
  61
  62     /**
  63      * Clean-up
  64      */
  65     @AfterClass
  66     public static void tearDownClass() {
  67         stateFile.delete();
  68         stateFileBenchmark.delete();
  69     }
  70
  71     // ------------------------------------------------------------------------
  72     // Tests specific to a full-history
  73     // ------------------------------------------------------------------------
  74
  75     /**
  76      * Rebuild independently so we can benchmark it. Too bad JUnit doesn't allow
  77      * us to @Test the @BeforeClass...
  78      */
  79     @Test
  80     public void testBuild() {
  81         try {
  82             ITmfStateProvider input2 = new LttngKernelStateProvider(testTrace.getTrace());
  83             ITmfStateSystem ssb2 = TmfStateSystemFactory.newFullHistory(stateFileBenchmark, input2, true);
  84
  85             assertEquals(startTime, ssb2.getStartTime());
  86             assertEquals(endTime, ssb2.getCurrentEndTime());
  87
  88         } catch (TmfTraceException e) {
  89             fail();
  90         }
  91     }
  92
  93     /**
  94      * Test re-opening the existing file.
  95      */
  96     @Test
  97     public void testOpenExistingStateFile() {
  98         try {
  99             /* 'newStateFile' should have already been created */
 100             ITmfStateSystem ssb2 = TmfStateSystemFactory.newFullHistory(stateFile, null, true);
 101
 102             assertNotNull(ssb2);
 103             assertEquals(startTime, ssb2.getStartTime());
 104             assertEquals(endTime, ssb2.getCurrentEndTime());
 105
 106          } catch (TmfTraceException e) {
 107              fail();
 108          }
 109     }
 110
 111 }