1 /* 2 * Copyright (c) 1998, 1999, 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 4091789 4173233 26 * @summary Check if LineNumberReader will skip right number of characters and 27 * also check for negative values 28 */ 29 30 import java.io.*; 31 32 public class Skip { 33 main(String[] args)34 public static void main(String[] args) throws Exception { 35 36 int linenum = 0; 37 long nchars = 164 * 50; 38 39 File f = new File(System.getProperty("test.src", "."), 40 "SkipInput.txt"); 41 LineNumberReader reader = new LineNumberReader(new FileReader(f)); 42 43 boolean testFailed = false; 44 try { 45 reader.skip(-10); 46 testFailed = true; 47 } catch (IllegalArgumentException e) { 48 } 49 catch (Exception e) { 50 testFailed = true; 51 } 52 if (testFailed) 53 throw new Exception("Failed test: Negative value for skip()"); 54 55 long realnum = reader.skip(nchars); 56 linenum = reader.getLineNumber(); 57 58 if (linenum != 164) { 59 throw new Exception("Failed test: Should skip 164, really skipped " 60 + linenum + "lines"); 61 } 62 } 63 } 64