1 /*

     2  * Copyright (c) 2018, 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 /*

    25  * @test

    26  * @bug 4153987 6354525

    27  * @summary Malformed surrogates should be handled by the converter in

    28  * substitution mode.

    29  */

    30 

    31 import java.io.ByteArrayOutputStream;

    32 import java.io.OutputStream;

    33 import java.io.OutputStreamWriter;

    34 

    35 public class MalformedSurrogateStringTest {

    36 

    37     public static void main(String[] args) throws Exception {

    38 

    39         String fe = System.getProperty("file.encoding");

    40         if (  fe.equalsIgnoreCase("UTF8")

    41               || fe.equalsIgnoreCase("UTF-8")

    42               || fe.equalsIgnoreCase("UTF_8"))

    43             // This test is meaningless if the default charset

    44             // does handle surrogates

    45             return;

    46 

    47         System.out.println("Testing string conversion...");

    48         /* Example with malformed surrogate, and an offset */

    49         String t = "abc\uD800\uDB00efgh";

    50         String t2 = t.substring(2);

    51         byte[] b = t2.getBytes();

    52         System.err.println(b.length);

    53         for (int i = 0; i < b.length; i++)

    54             System.err.println("[" + i + "]" + "=" + (char) b[i]

    55                                + "=" + (int) b[i]);

    56         if (b.length != 7) {

    57             throw new Exception("Bad string conversion for bad surrogate");

    58         }

    59 

    60         /* Example with a proper surrogate, no offset. Always worked */

    61         String t3 = "abc\uD800\uDC00efgh";

    62         byte[] b2 = t3.getBytes();

    63         System.out.println(b2.length);

    64         for(int i = 0; i < b2.length; i++)

    65             System.err.println("[" + i + "]" + "=" + (char) b2[i]);

    66         if (b2.length != 8) {

    67             throw new Exception("Bad string conversion for good surrogate");

    68         }

    69 

    70         OutputStream os = new ByteArrayOutputStream();

    71         OutputStreamWriter osw = new OutputStreamWriter(os);

    72         System.out.println("Testing flush....");

    73         /* Check for the case where the converter has a left over

    74            high surrogate when flush is called on the converter */

    75         osw.flush();

    76         String s = "abc\uD800"; // High surrogate

    77         char[] c = s.toCharArray();

    78         osw.write(s, 0, 4);

    79         osw.flush();

    80 

    81         System.out.println("Testing convert...");

    82         /* Verify that all other characters go through */

    83         for (int k = 1; k < 65535 ; k++) {

    84             osw.write("Char[" + k + "]=\"" + ((char) k) + "\"");

    85         }

    86 

    87     }

    88 }