78 lines
2.5 KiB
Java
78 lines
2.5 KiB
Java
/*
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* Copyright (c) 1997, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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@bug 4017196
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@summary Test for correct implementation of PushbackInputStream.skip
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*/
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import java.io.*;
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public class Skip {
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private static void dotest(PushbackInputStream in, int expected)
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throws Exception
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{
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int one, two, last, got;
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in.unread(4);
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in.unread(5);
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in.unread(6);
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in.skip(2);
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if (in.read() != 4) {
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throw new Exception("Failed the n < pushed back bytes case");
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}
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System.err.println("Passed the n < pushed back bytes case");
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one = in.read();
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two = in.read();
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if (two == 7) {
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in.unread(two);
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two = 0;
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}
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in.skip(2);
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last = in.read();
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got = (one + two + last);
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System.err.println("Expected " + expected + " got " + got);
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if (expected != got) {
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throw new Exception("Expected " + expected + " got " + got);
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}
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}
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public static void main(String args[]) throws Exception {
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byte[] data1 = {1, 7, 1, 0, 4};
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byte[] data2 = {1, 1, 1, 1, 5};
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byte[] data3 = {1, 7, 1, 3, 6};
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PushbackInputStream in;
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in = new PushbackInputStream(new ByteArrayInputStream(data1), 3);
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dotest(in, 1);
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in = new PushbackInputStream(new ByteArrayInputStream(data2), 3);
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dotest(in, 7);
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in = new PushbackInputStream(new ByteArrayInputStream(data3), 3);
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dotest(in, 4);
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}
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}
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