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 package test.java.io.ByteArrayOutputStream;
24 
25 import java.io.ByteArrayOutputStream;
26 import java.io.IOException;
27 import java.nio.charset.Charset;
28 import java.nio.charset.StandardCharsets;
29 import org.testng.Assert;
30 import org.testng.annotations.DataProvider;
31 import org.testng.annotations.Test;
32 
33 /**
34  * @test
35  * @bug 8183743
36  * @summary Test to verify the new overload method with Charset functions the same
37  * as the existing method that takes a charset name.
38  * @run testng EncodingTest
39  */
40 public class EncodingTest {
41     /*
42      * DataProvider for the toString method test. Provides the following fields:
43      * byte array, charset name string, charset object
44      */
45     @DataProvider(name = "parameters")
getParameters()46     public Object[][] getParameters() throws IOException {
47         byte[] data = getData();
48         return new Object[][]{
49                 {data, StandardCharsets.UTF_8.name(), StandardCharsets.UTF_8},
50                 {data, StandardCharsets.ISO_8859_1.name(), StandardCharsets.ISO_8859_1},
51         };
52     }
53 
54     /**
55      * Verifies that the new overload method that takes a Charset is equivalent to
56      * the existing one that takes a charset name.
57      * @param data a byte array
58      * @param csn the charset name
59      * @param charset the charset
60      * @throws Exception if the test fails
61      */
62     @Test(dataProvider = "parameters")
test(byte[] data, String csn, Charset charset)63     public void test(byte[] data, String csn, Charset charset) throws Exception {
64         ByteArrayOutputStream baos = new ByteArrayOutputStream();
65         baos.write(data);
66         String str1 = baos.toString(csn);
67         String str2 = baos.toString(charset);
68         Assert.assertEquals(str1, str2);
69     }
70 
71     /*
72      * Returns an array containing a character that's invalid for UTF-8
73      * but valid for ISO-8859-1
74      */
getData()75     byte[] getData() throws IOException {
76         String str1 = "A string that contains ";
77         String str2 = " , an invalid character for UTF-8.";
78 
79         ByteArrayOutputStream baos = new ByteArrayOutputStream();
80         baos.write(str1.getBytes());
81         baos.write(0xFA);
82         baos.write(str2.getBytes());
83         return baos.toByteArray();
84     }
85 }