115 lines
4.5 KiB
Java
115 lines
4.5 KiB
Java
/*
|
|
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/* @test
|
|
* @bug 6227608
|
|
* @summary Test proper handling of flush()
|
|
* @modules jdk.charsets
|
|
* @author Martin Buchholz
|
|
*/
|
|
|
|
import java.util.*;
|
|
import java.io.*;
|
|
import java.nio.*;
|
|
import java.nio.charset.*;
|
|
|
|
public class Flush {
|
|
private static byte[] contents(ByteBuffer bb) {
|
|
byte[] contents = new byte[bb.position()];
|
|
bb.duplicate().flip().get(contents);
|
|
return contents;
|
|
}
|
|
|
|
private static ByteBuffer extend(ByteBuffer bb) {
|
|
ByteBuffer x = ByteBuffer.allocate(2*bb.capacity()+10);
|
|
bb.flip();
|
|
x.put(bb);
|
|
return x;
|
|
}
|
|
|
|
private static void realMain(String[] args) throws Throwable {
|
|
// A japanese character should decode as a 3-byte
|
|
// switch-to-japanese escape sequence, followed by a 2-byte
|
|
// encoding of the char itself, followed by a 3-byte return to
|
|
// ASCII escape sequence.
|
|
char[] jis0208 = {'\u3001'};
|
|
CharBuffer cb = CharBuffer.wrap(jis0208);
|
|
ByteBuffer bb = ByteBuffer.allocate(6);
|
|
CharsetEncoder enc = Charset.forName("ISO-2022-JP").newEncoder();
|
|
|
|
check(enc.encode(cb, bb, true).isUnderflow());
|
|
|
|
System.out.println(Arrays.toString(contents(bb)));
|
|
check(! cb.hasRemaining());
|
|
equal(contents(bb).length, 3 + 2);
|
|
equal(bb.get(0), (byte)0x1b);
|
|
|
|
//----------------------------------------------------------------
|
|
// We must be able to recover if flush() returns OVERFLOW
|
|
//----------------------------------------------------------------
|
|
check(enc.flush(bb).isOverflow());
|
|
check(enc.flush(bb).isOverflow());
|
|
equal(contents(bb).length, 3 + 2);
|
|
|
|
bb = extend(bb);
|
|
|
|
check(enc.flush(bb).isUnderflow());
|
|
equal(bb.get(3 + 2), (byte)0x1b);
|
|
System.out.println(Arrays.toString(contents(bb)));
|
|
equal(contents(bb).length, 3 + 2 + 3);
|
|
|
|
//----------------------------------------------------------------
|
|
// A final redundant flush() is a no-op
|
|
//----------------------------------------------------------------
|
|
check(enc.flush(bb).isUnderflow());
|
|
check(enc.flush(bb).isUnderflow());
|
|
equal(contents(bb).length, 3 + 2 + 3);
|
|
|
|
//----------------------------------------------------------------
|
|
// CharsetEncoder.encode(ByteBuffer) must call flush(ByteBuffer)
|
|
//----------------------------------------------------------------
|
|
bb = enc.encode(CharBuffer.wrap(jis0208));
|
|
byte[] expected = "\u001b$B!\"\u001b(B".getBytes("ASCII");
|
|
byte[] contents = new byte[bb.limit()]; bb.get(contents);
|
|
check(Arrays.equals(contents, expected));
|
|
}
|
|
|
|
//--------------------- Infrastructure ---------------------------
|
|
static volatile int passed = 0, failed = 0;
|
|
static void pass() { passed++; }
|
|
static void fail() { failed++; Thread.dumpStack(); }
|
|
static void fail(String msg) { System.out.println(msg); fail(); }
|
|
static void unexpected(Throwable t) { failed++; t.printStackTrace(); }
|
|
static void check(boolean cond) { if (cond) pass(); else fail(); }
|
|
static void equal(Object x, Object y) {
|
|
if (x == null ? y == null : x.equals(y)) pass();
|
|
else {System.out.println(x + " not equal to " + y); fail(); }}
|
|
|
|
public static void main(String[] args) throws Throwable {
|
|
try { realMain(args); } catch (Throwable t) { unexpected(t); }
|
|
|
|
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
|
|
if (failed > 0) throw new Exception("Some tests failed");
|
|
}
|
|
}
|