107 lines
3.2 KiB
Java
107 lines
3.2 KiB
Java
/*
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* Copyright (c) 2001, 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 4401798
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@summary Check that single-character reads work properly
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*/
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import java.io.*;
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public class One {
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private abstract static class Test {
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InputStreamReader isr;
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StringBuffer sb;
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String expect;
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Test(byte[] in, String expect) throws Exception {
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isr = new InputStreamReader(new ByteArrayInputStream(in), "UTF-8");
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sb = new StringBuffer(expect.length());
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this.expect = expect;
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go();
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}
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void go() throws Exception {
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read();
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if (!expect.equals(sb.toString()))
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throw new Exception("Expected " + expect
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+ ", got " + sb.toString());
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}
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abstract void read() throws IOException;
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}
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private static void test(String expect) throws Exception {
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byte[] in = expect.getBytes("UTF-8");
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new Test(in, expect) {
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public void read() throws IOException {
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for (;;) {
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int c;
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if ((c = isr.read()) == -1)
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break;
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sb.append((char)c);
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}
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}};
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new Test(in, expect) {
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public void read() throws IOException {
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for (;;) {
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char[] cb = new char[1];
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if (isr.read(cb) == -1)
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break;
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sb.append(cb[0]);
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}
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}};
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new Test(in, expect) {
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public void read() throws IOException {
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for (;;) {
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char[] cb = new char[2];
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int n;
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if ((n = isr.read(cb)) == -1)
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break;
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sb.append(cb[0]);
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if (n == 2)
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sb.append(cb[1]);
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}
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}};
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}
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public static void main(String[] args) throws Exception {
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test("x");
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test("xy");
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test("xyz");
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test("\ud800\udc00");
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test("x\ud800\udc00");
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}
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}
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