1 /* 2 * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 8065570 26 * @summary Unit test for X-Buffer.order methods 27 */ 28 29 import java.nio.*; 30 31 32 public class Order { 33 34 static final ByteOrder be = ByteOrder.BIG_ENDIAN; 35 static final ByteOrder le = ByteOrder.LITTLE_ENDIAN; 36 static final ByteOrder nord = ByteOrder.nativeOrder(); 37 38 protected static final int LENGTH = 16; 39 40 static void ck(ByteOrder ord, ByteOrder expected) { 41 if (ord != expected) 42 throw new RuntimeException("Got " + ord + ", expected " + expected); 43 } 44 45 private static void ckViews(ByteBuffer bb) { 46 ck(bb.asCharBuffer().order(), bb.order()); 47 ck(bb.asShortBuffer().order(), bb.order()); 48 ck(bb.asIntBuffer().order(), bb.order()); 49 ck(bb.asLongBuffer().order(), bb.order()); 50 ck(bb.asFloatBuffer().order(), bb.order()); 51 ck(bb.asDoubleBuffer().order(), bb.order()); 52 } 53 54 private static void ckByteBuffer(ByteBuffer bb) { 55 ckViews(bb); 56 bb.order(be); 57 ckViews(bb); 58 bb.order(le); 59 ckViews(bb); 60 61 if (bb.hasArray()) { 62 byte[] array = bb.array(); 63 ck(ByteBuffer.wrap(array, LENGTH/2, LENGTH/2).order(), be); 64 ck(ByteBuffer.wrap(array).order(), be); 65 ck(bb.asReadOnlyBuffer().order(), be); 66 ck(bb.duplicate().order(), be); 67 ck(bb.slice().order(), be); 68 } 69 } 70 71 public static void main(String args[]) throws Exception { 72 73 ck(ByteBuffer.allocate(LENGTH).order(), be); 74 ck(ByteBuffer.allocateDirect(LENGTH).order(), be); 75 ck(ByteBuffer.allocate(LENGTH).order(be).order(), be); 76 ck(ByteBuffer.allocate(LENGTH).order(le).order(), le); 77 ck(ByteBuffer.allocateDirect(LENGTH).order(be).order(), be); 78 ck(ByteBuffer.allocateDirect(LENGTH).order(le).order(), le); 79 80 ckByteBuffer(ByteBuffer.allocate(LENGTH)); 81 ckByteBuffer(ByteBuffer.allocateDirect(LENGTH)); 82 83 OrderChar.ckCharBuffer(); 84 OrderShort.ckShortBuffer(); 85 OrderInt.ckIntBuffer(); 86 OrderLong.ckLongBuffer(); 87 OrderFloat.ckFloatBuffer(); 88 OrderDouble.ckDoubleBuffer(); 89 } 90 }