| /******************************************************************************* |
| * Copyright (c) 2013, 2014 Ericsson |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Matthew Khouzam - Initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.ctf.core.tests.util; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| import java.util.UUID; |
| |
| import org.eclipse.tracecompass.ctf.core.CTFException; |
| import org.eclipse.tracecompass.internal.ctf.core.utils.Utils; |
| import org.junit.Test; |
| |
| /** |
| * The class <code>UtilsTest</code> contains tests for the class |
| * {@link Utils}. |
| * |
| * @author Matthew Khouzam |
| */ |
| public class UtilsTest { |
| |
| /** |
| * Run the UUID makeUUID(byte[]) method test. |
| * @throws CTFException |
| * the data is not the right size |
| */ |
| @Test |
| public void testMakeUUID() throws CTFException { |
| int byteSize = 32; |
| byte[] bytes = new byte[byteSize]; |
| for (int i = 0; i < byteSize; i++) { |
| bytes[i] = (byte) (i); |
| } |
| |
| UUID result = Utils.makeUUID(bytes); |
| assertNotNull(result); |
| } |
| |
| /** |
| * Run the UUID makeUUID(byte[]) method test. |
| * |
| * @throws CTFException |
| * the data is not the right size |
| */ |
| @Test |
| public void testMakeUUID_2() throws CTFException { |
| byte[] bytes = new byte[] { (byte) 1, (byte) 1, (byte) 0, (byte) 0, |
| (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 1, (byte) 1, |
| (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 }; |
| |
| UUID result = Utils.makeUUID(bytes); |
| |
| assertNotNull(result); |
| assertEquals(72339069014638592L, result.getLeastSignificantBits()); |
| assertEquals(72339069014638592L, result.getMostSignificantBits()); |
| assertEquals("01010000-0000-0000-0101-000000000000", result.toString()); |
| assertEquals(0, result.variant()); |
| assertEquals(0, result.version()); |
| } |
| |
| /** |
| * Run the UUID makeUUID(byte[]) method test. |
| * |
| * @throws CTFException |
| * the data is not the right size |
| */ |
| @Test |
| public void testMakeUUID_3() throws CTFException { |
| byte[] bytes = new byte[] { (byte) 0, (byte) 0, (byte) 0, (byte) 0, |
| (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, |
| (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 }; |
| |
| UUID result = Utils.makeUUID(bytes); |
| |
| assertNotNull(result); |
| assertEquals(0L, result.getLeastSignificantBits()); |
| assertEquals(0L, result.getMostSignificantBits()); |
| assertEquals("00000000-0000-0000-0000-000000000000", result.toString()); |
| assertEquals(0, result.variant()); |
| assertEquals(0, result.version()); |
| } |
| |
| /** |
| * Run the int unsignedCompare(long,long) method test. |
| */ |
| @Test |
| public void testUnsignedCompare() { |
| long a = 1L; |
| long b = 1L; |
| int result; |
| |
| result = Utils.unsignedCompare(a, b); |
| assertEquals(0, result); |
| |
| result = Utils.unsignedCompare(0L, 1L); |
| assertEquals(-1, result); |
| result = Utils.unsignedCompare(0xFFFFFFFFL, 0x100000000L); |
| assertEquals(-1, result); |
| result = Utils.unsignedCompare(-4L, -1L); |
| assertEquals(-1, result); |
| result = Utils.unsignedCompare(-0x80000000L, -1L); |
| assertEquals(-1, result); |
| result = Utils.unsignedCompare(0x7FFFFFFFFFFFFFFEL, 0x7FFFFFFFFFFFFFFFL); |
| assertEquals(-1, result); |
| |
| result = Utils.unsignedCompare(1L, 0L); |
| assertEquals(1, result); |
| result = Utils.unsignedCompare(0x100000000L, 0xFFFFFFFFL); |
| assertEquals(1, result); |
| result = Utils.unsignedCompare(-1L, -4L); |
| assertEquals(1, result); |
| result = Utils.unsignedCompare(-1L, -0x80000000L); |
| assertEquals(1, result); |
| result = Utils.unsignedCompare(0x7FFFFFFFFFFFFFFFL, 0x7FFFFFFFFFFFFFFEL); |
| assertEquals(1, result); |
| } |
| } |