136 lines
4.2 KiB
Java
136 lines
4.2 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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@summary General tests for BufferedReader.mark
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*/
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import java.io.*;
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public class BufferedReaderMark {
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static int bufferSize = -1;
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static int inputSize = -1;
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static String d2(int n) {
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String s = Integer.toString(n);
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if (s.length() < 2)
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return s + " ";
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else
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return s;
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}
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static void fail(String s) {
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throw new RuntimeException(s);
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}
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public static void main(String[] args) throws Exception {
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PrintStream log = System.err;
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if (bufferSize == -1)
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bufferSize = 7;
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if (inputSize == -1)
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inputSize = bufferSize * 3;
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try {
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Reader in = new BufferedReader(new ABCReader(inputSize), bufferSize);
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char buf[] = new char[bufferSize];
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if (in.read(buf) != bufferSize)
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fail("Read failed");
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in.reset();
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fail("reset() didn't throw");
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}
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catch (IOException x) {
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if (x.getMessage().equals("Stream not marked"))
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log.println("Unmarked-stream test OK");
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else
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fail(x.toString());
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}
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boolean err = false;
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try {
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Reader in = new BufferedReader(new ABCReader(inputSize), bufferSize);
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char buf[] = new char[bufferSize];
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if (in.read() == -1)
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fail("Read 1 failed");
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in.mark(bufferSize);
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while (in.read() != -1);
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in.reset();
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fail("reset() didn't throw");
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}
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catch (IOException x) {
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if (x.getMessage().equals("Mark invalid")) {
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err = true;
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log.println("Invalid-mark test OK");
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}
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else {
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log.println("Invalid-mark test failed: " + x);
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fail(x.toString());
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}
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}
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if (! err)
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fail("Invalid-mark test failed: Exception not thrown");
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int c;
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for (int off = 0; off < bufferSize * 2; off++) {
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for (int ra = 0; ra <= inputSize + 2; ra++) {
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Reader in = new BufferedReader(new ABCReader(inputSize), bufferSize);
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log.print(d2(off) + ", " + d2(ra) + " mark: ");
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for (int i = 0; i < off; i++) {
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if ((c = in.read()) == -1) {
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log.print("<EOF>");
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break;
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}
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log.print((char) c);
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}
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in.mark(ra);
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for (int i = 0; i < ra; i++) {
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if ((c = in.read()) == -1) {
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log.print("<EOF>");
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break;
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}
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log.print((char) c);
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}
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log.println();
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log.print(d2(off) + ", " + d2(ra) + " reset: ");
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in.reset();
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for (int i = 0; i < off; i++)
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log.print(' ');
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for (;;) {
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if ((c = in.read()) == -1) {
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log.print("<EOF>");
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break;
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}
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log.print((char) c);
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}
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log.println();
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}
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}
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}
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}
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