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/*
* 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;
}
}
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