1 /* 2 * Copyright (c) 2019, 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 8218280 26 * @summary Make sure marking a line feed within a CRLF sequence works correctly 27 * @run testng MarkSplitCRLF 28 */ 29 30 import java.io.IOException; 31 import java.io.LineNumberReader; 32 import java.io.Reader; 33 import java.io.StringReader; 34 35 import org.testng.annotations.Test; 36 37 import static org.testng.Assert.*; 38 39 public class MarkSplitCRLF { 40 @Test 41 public static void testSpecifiedBufferSize() throws IOException { 42 final String string = "foo\r\nbar"; 43 try (Reader reader = 44 new LineNumberReader(new StringReader(string), 5)) { 45 reader.read(); // 'f' 46 reader.read(); // 'o' 47 reader.read(); // 'o' 48 reader.read(); // '\r' -> '\n' 49 reader.mark(1); // mark position of '\n' 50 reader.read(); // 'b' 51 reader.reset(); // reset to '\n' position 52 assertEquals(reader.read(), 'b'); 53 assertEquals(reader.read(), 'a'); 54 assertEquals(reader.read(), 'r'); 55 } 56 } 57 58 @Test 59 public static void testDefaultBufferSize() throws IOException { 60 StringBuilder sb = new StringBuilder(8195); 61 for (int i = 0; i < 8190; i++) { 62 char c = (char)i; 63 sb.append(c); 64 } 65 sb.append('\r'); 66 sb.append('\n'); 67 sb.append('X'); 68 sb.append('Y'); 69 sb.append('Z'); 70 final String string = sb.toString(); 71 try (Reader reader = new LineNumberReader(new StringReader(string))) { 72 for (int i = 0; i < 8191; i++) reader.read(); 73 reader.mark(1); 74 reader.read(); 75 reader.reset(); 76 assertEquals(reader.read(), 'X'); 77 assertEquals(reader.read(), 'Y'); 78 assertEquals(reader.read(), 'Z'); 79 } 80 } 81 }