jdk/test/java/io/LineNumberReader/ReadReadLine.java
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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/*
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 * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/* @test
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   @bug 4103987
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   @summary Tests LineNumberReader to see if the lineNumber is set correctly
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            when mixed reads and readLines are used.
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   */
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import java.io.*;
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public class ReadReadLine {
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    public static void main(String[] args) throws Exception {
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        test("\r\n", 1);
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        test("\r\r\n", 2);
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        test("\r\n\n\n", 3);
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    }
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    static void test(String s, int good) throws Exception {
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        int c, line;
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        LineNumberReader r = new LineNumberReader(new StringReader(s), 2);
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        if ((c = r.read()) >= 0) {
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            while (r.readLine() != null)
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                ;
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        }
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        line = r.getLineNumber();
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        if(line != good) {
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            throw new Exception("Failed test: Expected line number "
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                                + good + " Got: " + line);
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        }
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    }
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}