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 sun.misc.JavaLangAccess;

    25 import sun.misc.SharedSecrets;

    26 

    27 /*

    28  * @test

    29  * @bug 8050114

    30  * @summary Test JavaLangAccess.formatUnsignedInt/-Long

    31  * @modules java.base/sun.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 }