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.CtfKernelStateInput;
  24 import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
  25 import org.eclipse.linuxtools.tmf.core.statesystem.IStateChangeInput;
  26 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  27 import org.eclipse.linuxtools.tmf.core.statesystem.StateSystemManager;
  28 import org.eclipse.linuxtools.tmf.core.tests.shared.CtfTmfTestTraces;
  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(CtfTmfTestTraces.tracesExist());
  49         try {
  50             stateFile = File.createTempFile("test", ".ht");
  51             stateFileBenchmark = File.createTempFile("test", ".ht.benchmark");
  52
  53             input = new CtfKernelStateInput(CtfTmfTestTraces.getTestTrace(TRACE_INDEX));
  54             ssq = StateSystemManager.loadStateHistory(stateFile, input, true);
  55         } catch (IOException e) {
  56             e.printStackTrace();
  57         } catch (TmfTraceException e) {
  58             e.printStackTrace();
  59         } finally {
  60             stateFile.deleteOnExit();
  61             stateFileBenchmark.deleteOnExit();
  62         }
  63     }
  64
  65     // ------------------------------------------------------------------------
  66     // Tests specific to a full-history
  67     // ------------------------------------------------------------------------
  68
  69     /**
  70      * Rebuild independently so we can benchmark it. Too bad JUnit doesn't allow
  71      * us to @Test the @BeforeClass...
  72      */
  73     @Test
  74     public void testBuild() {
  75         try {
  76             IStateChangeInput input2 = new CtfKernelStateInput(CtfTmfTestTraces.getTestTrace(TRACE_INDEX));
  77             ITmfStateSystem ssb2 = StateSystemManager.loadStateHistory(stateFileBenchmark, input2, true);
  78
  79             assertEquals(startTime, ssb2.getStartTime());
  80             assertEquals(endTime, ssb2.getCurrentEndTime());
  81
  82         } catch (TmfTraceException e) {
  83             fail();
  84         }
  85     }
  86
  87     /**
  88      * Test re-opening the existing file.
  89      */
  90     @Test
  91     public void testOpenExistingStateFile() {
  92         try {
  93             /* 'newStateFile' should have already been created */
  94             ITmfStateSystem ssb2 = StateSystemManager.loadStateHistory(stateFile, null, true);
  95
  96             assertNotNull(ssb2);
  97             assertEquals(startTime, ssb2.getStartTime());
  98             assertEquals(endTime, ssb2.getCurrentEndTime());
  99
 100          } catch (TmfTraceException e) {
 101              fail();
 102          }
 103     }
 104
 105 }