91 lines
3.3 KiB
Java
91 lines
3.3 KiB
Java
/*
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* Copyright (c) 2008, 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 5066863 5066867 5066874 5066879 5066884 5066887 5065777 6730652
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@summary canEncode() false iff encode() throws CharacterCodingException
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@run main/timeout=1200 FindCanEncodeBugs
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@author Martin Buchholz
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*/
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import java.util.*;
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import java.nio.charset.*;
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import java.nio.*;
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public class FindCanEncodeBugs {
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static boolean encodable1(CharsetEncoder enc, char c) {
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enc.reset();
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return enc.canEncode(c);
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}
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static boolean encodable2(CharsetEncoder enc, char c) {
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enc.reset();
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try { enc.encode(CharBuffer.wrap(new char[]{c})); return true; }
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catch (CharacterCodingException e) { return false; }
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}
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public static void main(String[] args) throws Exception {
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int failures = 0;
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for (Map.Entry<String,Charset> e
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: Charset.availableCharsets().entrySet()) {
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String csn = e.getKey();
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Charset cs = e.getValue();
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if (! cs.canEncode() || csn.matches("x-COMPOUND_TEXT"))
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continue;
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//System.out.println(csn);
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CharsetEncoder enc = cs.newEncoder();
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for (int i = Character.MIN_VALUE; i <= Character.MAX_VALUE; i++) {
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boolean encodable1 = encodable1(enc, (char)i);
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boolean encodable2 = encodable2(enc, (char)i);
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if (encodable1 != encodable2) {
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int start = i;
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int end = i;
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for (int j = i;
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j <= '\uffff' &&
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encodable1(enc, (char)j) == encodable1 &&
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encodable2(enc, (char)j) == encodable2;
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j++)
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end = j;
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System.out.printf("charset=%-18s canEncode=%-5b ",
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csn, encodable1);
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if (start == end)
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System.out.printf("\'\\u%04x\'%n", start);
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else
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System.out.printf("\'\\u%04x\' - \'\\u%04x\'%n",
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start, end);
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i = end;
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failures++;
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}
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}
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}
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if (failures > 0)
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throw new Exception(failures + " failures");
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}
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}
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