/*
* 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 4821213
* @summary Unit test for CharsetEncoder.canEncode methods
*/
import java.io.*;
import java.nio.*;
import java.nio.charset.*;
public class CanEncode {
private static int errors = 0;
private static PrintStream out = System.err;
private static void wrong(CharsetEncoder ce, boolean can, String what) {
out.println(ce.charset().name()
+ ": Wrong answer for " + what
+ ": " + !can);
errors++;
}
private static void ck(CharsetEncoder ce, char c, boolean can)
throws Exception
{
if (ce.canEncode(c) != can)
wrong(ce, can,
("'" + c + "' (0x"
+ Integer.toHexString(c & 0xffff) + ")"));
}
private static void ck(CharsetEncoder ce, String s, boolean can)
throws Exception
{
if (ce.canEncode(CharBuffer.wrap(s.toCharArray())) != can)
wrong(ce, can, "array \"" + s + "\"");
if (ce.canEncode(CharBuffer.wrap(s)) != can)
wrong(ce, can, "buffer \"" + s + "\"");
}
private static void test(String csn) throws Exception {
Charset cs = Charset.forName(csn);
CharsetEncoder ce = cs.newEncoder();
if (cs.name().equals("US-ASCII")) {
ck(ce, 'x', true);
ck(ce, '\u00B6', false);
ck(ce, "x", true);
ck(ce, "\u00B6", false);
ck(ce, "xyzzy", true);
ck(ce, "xy\u00B6", false);
}
// Unpaired surrogates should never be encodable
ck(ce, '\ud800', false);
ck(ce, '\ud801', false);
ck(ce, '\udffe', false);
ck(ce, '\udfff', false);
ck(ce, "\ud800", false);
ck(ce, "\ud801", false);
ck(ce, "\udffe", false);
ck(ce, "\udfff", false);
}
public static void main(String[] args) throws Exception {
test("US-ASCII");
test("UTF-8");
}
}