org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/types/IntegerEndiannessTest.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 École Polytechnique de Montréal, Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Geneviève Bastien - Initial API and implementation
  11  *   Alexandre Montplaisir - Split out in separate class
  12  *   Matthew Khouzam - update api (exceptions)
  13  *******************************************************************************/
  14
  15 package org.eclipse.linuxtools.ctf.core.tests.types;
  16
  17 import static org.junit.Assert.assertEquals;
  18
  19 import java.nio.ByteBuffer;
  20 import java.nio.ByteOrder;
  21
  22 import org.eclipse.jdt.annotation.NonNull;
  23 import org.eclipse.linuxtools.ctf.core.event.io.BitBuffer;
  24 import org.eclipse.linuxtools.ctf.core.event.types.Encoding;
  25 import org.eclipse.linuxtools.ctf.core.event.types.IntegerDeclaration;
  26 import org.eclipse.linuxtools.ctf.core.event.types.IntegerDefinition;
  27 import org.eclipse.linuxtools.ctf.core.trace.CTFReaderException;
  28 import org.junit.Before;
  29 import org.junit.Test;
  30
  31 /**
  32  * Endianness test for {@link IntegerDefinition}.
  33  *
  34  * @author Geneviève Bastien
  35  */
  36 public class IntegerEndiannessTest {
  37
  38     @NonNull private static final String name = "testInt";
  39     @NonNull private static final String clockName = "clock";
  40
  41     private ByteBuffer bb;
  42     @NonNull private BitBuffer input = new BitBuffer(java.nio.ByteBuffer.allocate(0));
  43
  44     /**
  45      * Set up the bit-buffer to be used
  46      */
  47     @Before
  48     public void setUp() {
  49         bb = java.nio.ByteBuffer.allocateDirect(8);
  50         bb.put((byte) 0xab);
  51         bb.put((byte) 0xcd);
  52         bb.put((byte) 0xef);
  53         bb.put((byte) 0x12);
  54         bb.put((byte) 0x34);
  55         bb.put((byte) 0x56);
  56         bb.put((byte) 0x78);
  57         bb.put((byte) 0x9a);
  58         input = new BitBuffer(bb);
  59     }
  60
  61     /**
  62      * Read 32-bits BE
  63      *
  64      * @throws CTFReaderException
  65      *             error
  66      */
  67     @Test
  68     public void test32BE() throws CTFReaderException {
  69         IntegerDeclaration be = IntegerDeclaration.createDeclaration(32, true, 1, ByteOrder.BIG_ENDIAN, Encoding.NONE, clockName, 8);
  70         IntegerDefinition fixture_be = be.createDefinition(null, name, input);
  71         assertEquals(0xabcdef12, fixture_be.getValue());
  72     }
  73
  74     /**
  75      * Read 64-bits BE
  76      *
  77      * @throws CTFReaderException
  78      *             error
  79      */
  80     @Test
  81     public void test64BE() throws CTFReaderException {
  82         IntegerDeclaration be = IntegerDeclaration.createDeclaration(64, true, 1, ByteOrder.BIG_ENDIAN, Encoding.NONE, clockName, 8);
  83         IntegerDefinition fixture_be = be.createDefinition(null, name, input);
  84         assertEquals(0xabcdef123456789aL, fixture_be.getValue());
  85     }
  86
  87     /**
  88      * Read 32-bits LE
  89      *
  90      * @throws CTFReaderException
  91      *             error
  92      */
  93     @Test
  94     public void test32LE() throws CTFReaderException {
  95         IntegerDeclaration le = IntegerDeclaration.createDeclaration(32, true, 1, ByteOrder.LITTLE_ENDIAN, Encoding.NONE, clockName, 8);
  96         IntegerDefinition fixture_le = le.createDefinition(null, name, input);
  97         assertEquals(0x12efcdab, fixture_le.getValue());
  98     }
  99
 100     /**
 101      * Read 64-bits LE
 102      *
 103      * @throws CTFReaderException
 104      *             error
 105      */
 106     @Test
 107     public void test64LE() throws CTFReaderException {
 108         IntegerDeclaration le = IntegerDeclaration.createDeclaration(64, true, 1, ByteOrder.LITTLE_ENDIAN, Encoding.NONE, clockName, 8);
 109         IntegerDefinition fixture_le = le.createDefinition(null, name, input);
 110         assertEquals(0x9a78563412efcdabL, fixture_le.getValue());
 111     }
 112 }