0N/A/*
2362N/A * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/A/* @test
0N/A * @bug 4398210
0N/A * @summary check skip method after pushing data back
0N/A *
0N/A */
0N/A
0N/Aimport java.io.*;
0N/A
0N/Apublic class Skip {
0N/A
0N/A public static void main(String args[]) throws Exception {
0N/A test1();
0N/A }
0N/A
0N/A private static void test1() throws Exception {
0N/A char[] buf = new char[20];
0N/A for (int i=0; i<20; i++)
0N/A buf[i] = (char)i;
0N/A CharArrayReader car = new CharArrayReader(buf);
0N/A PushbackReader pr = new PushbackReader(car, 10);
0N/A check(pr.read(), 0);
0N/A // Check skip without unread chars present
0N/A pr.skip(1);
0N/A check(pr.read(), 2);
0N/A pr.unread(2);
0N/A pr.unread(1);
0N/A // Check skip over and beyond unread chars
0N/A pr.skip(4);
0N/A check(pr.read(), 5);
0N/A check(pr.read(), 6);
0N/A pr.unread(6);
0N/A pr.unread(5);
0N/A // Check skip within unread chars
0N/A pr.skip(1);
0N/A check(pr.read(), 6);
0N/A check(pr.read(), 7);
0N/A // Check skip after unread chars have been used
0N/A pr.skip(3);
0N/A check(pr.read(), 11);
0N/A }
0N/A
0N/A private static void check (int i, int j) {
0N/A if (i != j)
0N/A throw new RuntimeException("Test failed");
0N/A }
0N/A}