1 /*

     2  * Copyright (c) 2000, 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  * @summary Unit test for buffers

    26  * @bug 4413135 4414911 4416536 4416562 4418782 4471053 4472779 4490253 4523725

    27  *      4526177 4463011 4660660 4661219 4663521 4782970 4804304 4938424 6231529

    28  *      6221101 6234263 6535542 6591971 6593946 6795561 7190219 7199551 8065556

    29  *      8149469

    30  * @modules java.base/java.nio:open

    31  *          java.base/jdk.internal.misc

    32  * @author Mark Reinhold

    33  */

    34 

    35 

    36 import java.io.PrintStream;

    37 

    38 import java.nio.Buffer;

    39 import java.nio.ByteBuffer;

    40 import java.nio.CharBuffer;

    41 

    42 

    43 public class Basic {

    44 

    45     static PrintStream out = System.err;

    46 

    47     static long ic(int i) {

    48         int j = i % 54;

    49         return j + 'a' + ((j > 26) ? 128 : 0);

    50     }

    51 

    52     static String toString(Buffer b) {

    53         return (b.getClass().getName()

    54                 + "[pos=" + b.position()

    55                 + " lim=" + b.limit()

    56                 + " cap=" + b.capacity()

    57                 + "]");

    58     }

    59 

    60     static void show(int level, Buffer b) {

    61         for (int i = 0; i < level; i++)

    62             out.print("  ");

    63         out.println(toString(b) + " " + Integer.toHexString(b.hashCode()));

    64     }

    65 

    66     static void fail(String s) {

    67         throw new RuntimeException(s);

    68     }

    69 

    70     static void fail(String s, Buffer b) {

    71         throw new RuntimeException(s + ": " + toString(b));

    72     }

    73 

    74     static void fail(String s, Buffer b, Buffer b2) {

    75         throw new RuntimeException(s + ": "

    76                                    + toString(b) + ", " + toString(b2));

    77     }

    78 

    79     static void fail(Buffer b,

    80                      String expected, char expectedChar,

    81                      String got, char gotChar)

    82     {

    83         if (b instanceof ByteBuffer) {

    84             ByteBuffer bb = (ByteBuffer)b;

    85             int n = Math.min(16, bb.limit());

    86             for (int i = 0; i < n; i++)

    87                 out.print(" " + Integer.toHexString(bb.get(i) & 0xff));

    88             out.println();

    89         }

    90         if (b instanceof CharBuffer) {

    91             CharBuffer bb = (CharBuffer)b;

    92             int n = Math.min(16, bb.limit());

    93             for (int i = 0; i < n; i++)

    94                 out.print(" " + Integer.toHexString(bb.get(i) & 0xffff));

    95             out.println();

    96         }

    97         throw new RuntimeException(toString(b)

    98                                    + ": Expected '" + expectedChar + "'=0x"

    99                                    + expected

   100                                    + ", got '" + gotChar + "'=0x"

   101                                    + got);

   102     }

   103 

   104     static void fail(Buffer b, long expected, long got) {

   105         fail(b,

   106              Long.toHexString(expected), (char)expected,

   107              Long.toHexString(got), (char)got);

   108     }

   109 

   110     static void ck(Buffer b, boolean cond) {

   111         if (!cond)

   112             fail("Condition failed", b);

   113     }

   114 

   115     static void ck(Buffer b, long got, long expected) {

   116         if (expected != got)

   117             fail(b, expected, got);

   118     }

   119 

   120     static void ck(Buffer b, float got, float expected) {

   121         if (expected != got)

   122             fail(b,

   123                  Float.toString(expected), (char)expected,

   124                  Float.toString(got), (char)got);

   125     }

   126 

   127     static void ck(Buffer b, double got, double expected) {

   128         if (expected != got)

   129             fail(b,

   130                  Double.toString(expected), (char)expected,

   131                  Double.toString(got), (char)got);

   132     }

   133 

   134     public static void main(String[] args) {

   135         BasicByte.test();

   136         BasicChar.test();

   137         BasicShort.test();

   138         BasicInt.test();

   139         BasicLong.test();

   140         BasicFloat.test();

   141         BasicDouble.test();

   142     }

   143 

   144 }