1 /*

     2  * Copyright (c) 2015, 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 8030179

    26    @summary test if the charset encoder deails with surrogate correctly

    27  * @run testng/othervm -esa StreamEncoderOut

    28  */

    29 import org.testng.annotations.DataProvider;

    30 import org.testng.annotations.Test;

    31 

    32 import java.io.IOException;

    33 import java.io.OutputStream;

    34 import java.io.OutputStreamWriter;

    35 import java.nio.charset.Charset;

    36 import java.util.stream.Stream;

    37 

    38 import static java.util.stream.Collectors.joining;

    39 

    40 @Test

    41 public class StreamEncoderOut {

    42 

    43     enum Input {

    44         HIGH("\ud834"),

    45         LOW("\udd1e"),

    46         HIGH_LOW("\ud834\udd1e");

    47 

    48         final String value;

    49 

    50         Input(String value) {

    51             this.value = value;

    52         }

    53 

    54         @Override

    55         public String toString() {

    56             return name() + " : \'" + value + "\"";

    57         }

    58     }

    59 

    60     @DataProvider(name = "CharsetAndString")

    61     // [Charset, Input]

    62     public static Object[][] makeStreamTestData() {

    63         // Cross product of supported charsets and inputs

    64         return Charset.availableCharsets().values().stream().

    65                 filter(Charset::canEncode).

    66                 flatMap(cs -> Stream.of(Input.values()).map(i -> new Object[]{cs, i})).

    67                 toArray(Object[][]::new);

    68     }

    69 

    70     private static String generate(String s, int n) {

    71         return Stream.generate(() -> s).limit(n).collect(joining());

    72     }

    73 

    74     static final OutputStream DEV_NULL = new OutputStream() {

    75         @Override

    76         public void write(byte b[], int off, int len) throws IOException {}

    77 

    78         @Override

    79         public void write(int b) throws IOException {}

    80     };

    81 

    82     @Test(dataProvider = "CharsetAndString")

    83     public void test(Charset cs, Input input) throws IOException {

    84         OutputStreamWriter w = new OutputStreamWriter(DEV_NULL, cs);

    85         String t = generate(input.value, 8193);

    86         for (int i = 0; i < 10; i++) {

    87             w.append(t);

    88         }

    89     }

    90 }