1 /* 2 * Copyright (c) 2012, 2014, 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 import jdk.internal.misc.JavaLangAccess; 25 import jdk.internal.misc.SharedSecrets; 26 27 /* 28 * @test 29 * @bug 8050114 30 * @summary Test JavaLangAccess.formatUnsignedInt/-Long 31 * @modules java.base/jdk.internal.misc 32 */ 33 public class FormatUnsigned { 34 35 static final JavaLangAccess jla = SharedSecrets.getJavaLangAccess(); 36 37 public static void testFormatUnsignedInt() { 38 testFormatUnsignedInt("7fffffff", Integer.MAX_VALUE, 8, 4, 0, 8); 39 testFormatUnsignedInt("80000000", Integer.MIN_VALUE, 8, 4, 0, 8); 40 testFormatUnsignedInt("4711", 04711, 4, 3, 0, 4); 41 testFormatUnsignedInt("4711", 0x4711, 4, 4, 0, 4); 42 testFormatUnsignedInt("1010", 0b1010, 4, 1, 0, 4); 43 testFormatUnsignedInt("00001010", 0b1010, 8, 1, 0, 8); 44 testFormatUnsignedInt("\u0000\u000000001010", 0b1010, 10, 1, 2, 8); 45 } 46 47 public static void testFormatUnsignedLong() { 48 testFormatUnsignedLong("7fffffffffffffff", Long.MAX_VALUE, 16, 4, 0, 16); 49 testFormatUnsignedLong("8000000000000000", Long.MIN_VALUE, 16, 4, 0, 16); 50 testFormatUnsignedLong("4711", 04711L, 4, 3, 0, 4); 51 testFormatUnsignedLong("4711", 0x4711L, 4, 4, 0, 4); 52 testFormatUnsignedLong("1010", 0b1010L, 4, 1, 0, 4); 53 testFormatUnsignedLong("00001010", 0b1010L, 8, 1, 0, 8); 54 testFormatUnsignedLong("\u0000\u000000001010", 0b1010L, 10, 1, 2, 8); 55 } 56 57 public static void testFormatUnsignedInt(String expected, int value, int arraySize, int shift, int offset, int length) { 58 char[] chars = new char[arraySize]; 59 jla.formatUnsignedInt(value, shift, chars, offset, length); 60 String s = new String(chars); 61 if (!expected.equals(s)) { 62 throw new Error(s + " should be equal to expected " + expected); 63 } 64 } 65 66 public static void testFormatUnsignedLong(String expected, long value, int arraySize, int shift, int offset, int length) { 67 char[] chars = new char[arraySize]; 68 jla.formatUnsignedLong(value, shift, chars, offset, length); 69 String s = new String(chars); 70 if (!expected.equals(s)) { 71 throw new Error(s + " should be equal to expected " + expected); 72 } 73 } 74 75 public static void main(String[] args) { 76 testFormatUnsignedInt(); 77 testFormatUnsignedLong(); 78 } 79 }