1 /*
   2  * Copyright (c) 2017, 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 java.io.ByteArrayOutputStream;
  25 import java.io.IOException;
  26 import java.nio.charset.Charset;
  27 import java.nio.charset.StandardCharsets;
  28 import org.testng.Assert;
  29 import org.testng.annotations.DataProvider;
  30 import org.testng.annotations.Test;
  31 
  32 /**
  33  * @test
  34  * @bug 8183743
  35  * @summary Test to verify the new overload method with Charset functions the same
  36  * as the existing method that takes a charset name.
  37  * @run testng EncodingTest
  38  */
  39 public class EncodingTest {
  40     /*
  41      * DataProvider for the toString method test. Provides the following fields:
  42      * byte array, charset name string, charset object
  43      */
  44     @DataProvider(name = "parameters")
  45     public Object[][] getParameters() throws IOException {
  46         byte[] data = getData();
  47         return new Object[][]{
  48             {data, StandardCharsets.UTF_8.name(), StandardCharsets.UTF_8},
  49             {data, StandardCharsets.ISO_8859_1.name(), StandardCharsets.ISO_8859_1},
  50         };
  51     }
  52 
  53     /**
  54      * Verifies that the new overload method that takes a Charset is equivalent to
  55      * the existing one that takes a charset name.
  56      * @param data a byte array
  57      * @param csn the charset name
  58      * @param charset the charset
  59      * @throws Exception if the test fails
  60      */
  61     @Test(dataProvider = "parameters")
  62     public void test(byte[] data, String csn, Charset charset) throws Exception {
  63         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  64         baos.write(data);
  65         String str1 = baos.toString(csn);
  66         String str2 = baos.toString(charset);
  67         Assert.assertEquals(str1, str2);
  68     }
  69 
  70     /*
  71      * Returns an array containing a character that's invalid for UTF-8
  72      * but valid for ISO-8859-1
  73      */
  74     byte[] getData() throws IOException {
  75         String str1 = "A string that contains ";
  76         String str2 = " , an invalid character for UTF-8.";
  77 
  78         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  79         baos.write(str1.getBytes());
  80         baos.write(0xFA);
  81         baos.write(str2.getBytes());
  82         return baos.toByteArray();
  83     }
  84 }