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/*
* Copyright (c) 2010, 2017, 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.
*/
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.nio.charset.Charset;
import java.nio.charset.UnsupportedCharsetException;
import java.util.Iterator;
import java.util.SortedMap;
public class CharsetTest {
private static PrintStream out = System.err;
private static final SortedMap available = Charset.availableCharsets();
private static void fail(String csn, String msg) {
throw new RuntimeException(csn + ": " + msg);
}
private static void testPositive(String csn) {
if (!Charset.isSupported(csn))
fail(csn, "Not supported");
Charset cs = Charset.forName(csn);
out.println(csn + " --> " + cs.getClass().getName());
out.println(" " + cs.name() + " " + cs.aliases());
if (!available.containsKey(cs.name()))
fail(csn, "Not in available charsets: " + available.keySet());
if (!((Charset)available.get(cs.name())).equals(cs))
fail(csn, "Available charset != looked-up charset");
if (csn.equalsIgnoreCase("FOO")) {
if (!(cs instanceof FooCharset))
fail(csn, "instanceof failed");
}
}
private static void testNegative(String csn) {
if (Charset.isSupported(csn))
fail(csn, "Supported");
if (available.containsKey(csn))
fail(csn, "Available");
try {
Charset.forName(csn);
} catch (UnsupportedCharsetException x) {
out.println(csn + " not supported, as expected");
return;
}
fail(csn, "Lookup succeeded");
}
public static void main(String [] args) {
out.println("Default: "
+ new InputStreamReader(System.in).getEncoding());
out.print("Available:");
for (Iterator i = available.keySet().iterator(); i.hasNext();)
out.print(" " + (String)i.next());
out.println();
for (int i = 0; i < args.length; i++) {
String a = args[i];
boolean not = a.startsWith("!");
String csn = (not ? a.substring(1) : a);
if (not)
testNegative(csn);
else
testPositive(csn);
}
}
}
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