| /* |
| * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * utility class |
| */ |
| |
| public class TestUtilities { |
| public static boolean equalsBlock(byte[] b1, byte[] b2, int len) { |
| for (int i = 0; i < len; i++) { |
| if (b1[i] != b2[i]) { |
| System.err.println("b1[" + i + "] : " + b1[i] |
| + " b2[" + i + "] : " + b2[i]); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public static boolean equals(byte[] b1, byte[] b2) { |
| if (b2.length != b1.length) { |
| System.err.println("b1.length = " + b1.length |
| + " b2.length = " + b2.length ); |
| return false; |
| } |
| return equalsBlock(b1, b2, b1.length); |
| } |
| |
| /** |
| * Verify b1's partial part is same as b2. compares b1 and b2 by chopping up |
| * b1 into blocks of b1BKSize and b2 into blocks of b2BKSize, and then |
| * compare the first b2BKSize bytes of each block, return true if they equal |
| * , otherwise return false. |
| * @param b1 byte array to be compared. |
| * @param b2 saved byte array. |
| * @param b1BKSize b1's block size. |
| * @param b2BKSize b2's block size. |
| * @return true is same. false otherwise. |
| */ |
| public static boolean equalsBlockPartial(byte[] b1, byte[] b2, int b1BKSize, |
| int b2BKSize) { |
| int numOfBlock = b1.length / b1BKSize; |
| for (int b = 0; b < numOfBlock; b++) { |
| for (int i = 0; i < b2BKSize; i++) { |
| int j1 = b * b1BKSize + i; |
| int j2 = b * b2BKSize + i; |
| if (b1[j1] != b2[j2]) { |
| System.err.println("Compare failed at b1[" + j1 + "]:" + |
| b1[j1] + " b2[" + j2 + "]:" + b2[j2]); |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Generate a byte block by given length. The content of byte block |
| * is determined by the index. |
| * @param length length of byte array |
| * @return a byte array |
| */ |
| public static byte[] generateBytes(int length) { |
| byte[] bytes = new byte[length]; |
| for (int i = 0; i < length; i++) { |
| bytes[i] = (byte) (i & 0xff); |
| } |
| return bytes; |
| } |
| } |