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.File; 25 import java.io.FileOutputStream; 26 import java.io.IOException; 27 import java.io.PrintWriter; 28 import java.nio.charset.Charset; 29 import java.nio.charset.StandardCharsets; 30 import java.nio.file.Files; 31 import java.nio.file.Paths; 32 import org.testng.Assert; 33 import org.testng.annotations.DataProvider; 34 import org.testng.annotations.Test; 35 36 /** 37 * @test 38 * @bug 8183743 39 * @summary Test to verify the new overload method with Charset functions the same 40 * as the existing method that takes a charset name. 41 * @run testng EncodingTest 42 */ 43 public class EncodingTest { 44 static String USER_DIR = System.getProperty("user.dir", "."); 45 static boolean AUTOFLUSH = true; 46 public static enum ConstructorType { 47 STRING, 48 FILE, 49 OUTPUTSTREAM 50 } 51 52 /* 53 * DataProvider fields: 54 * Type of the constructor, a file to be written with a charset name, 55 * a file to be written with a charset, charset name, charset. 56 */ 57 @DataProvider(name = "parameters") 58 public Object[][] getParameters() throws IOException { 59 String csn = StandardCharsets.UTF_8.name(); 60 Charset charset = StandardCharsets.UTF_8; 61 File file1 = new File(USER_DIR, "PWCharsetTest1.txt"); 62 File file2 = new File(USER_DIR, "PWCharsetTest2.txt"); 63 64 return new Object[][]{ 65 {ConstructorType.STRING, file1, file2, csn, charset}, 66 {ConstructorType.FILE, file1, file2, csn, charset}, 67 {ConstructorType.OUTPUTSTREAM, file1, file2, csn, charset} 68 }; 69 } 70 71 /** 72 * Verifies that the overloading constructor behaves the same as the existing 73 * one. 74 * 75 * @param type the type of the constructor 76 * @param file1 file1 written with the name of a charset 77 * @param file2 file2 written with a charset 78 * @param csn the charset name 79 * @param charset the charset 80 * @throws IOException 81 */ 82 @Test(dataProvider = "parameters") 83 public void test(ConstructorType type, File file1, File file2, String csn, Charset charset) 84 throws Exception { 85 createFile(getWriter(type, file1.getPath(), csn, null)); 86 createFile(getWriter(type, file2.getPath(), null, charset)); 87 88 Assert.assertEquals(Files.readAllLines(Paths.get(file1.getPath()), charset), 89 Files.readAllLines(Paths.get(file2.getPath()), charset)); 90 } 91 92 void createFile(PrintWriter out) throws IOException { 93 out.println("high surrogate"); 94 out.println(Character.MIN_HIGH_SURROGATE); 95 out.println("low surrogate"); 96 out.println(Character.MIN_LOW_SURROGATE); 97 out.flush(); 98 out.close(); 99 } 100 101 PrintWriter getWriter(ConstructorType type, String path, String csn, Charset charset) 102 throws IOException { 103 PrintWriter out = null; 104 if (csn != null) { 105 switch (type) { 106 case STRING: 107 out = new PrintWriter(path, csn); 108 break; 109 case FILE: 110 out = new PrintWriter(new File(path), csn); 111 break; 112 case OUTPUTSTREAM: 113 // No corresponding method with charset name 114 // compare with PrintWriter(path, csn) instead 115 out = new PrintWriter(path, csn); 116 break; 117 } 118 } else { 119 switch (type) { 120 case STRING: 121 out = new PrintWriter(path, charset); 122 break; 123 case FILE: 124 out = new PrintWriter(new File(path), charset); 125 break; 126 case OUTPUTSTREAM: 127 FileOutputStream fout = new FileOutputStream(path); 128 out = new PrintWriter(fout, AUTOFLUSH, charset); 129 break; 130 } 131 } 132 133 return out; 134 } 135 }