125 lines
5.3 KiB
Java
125 lines
5.3 KiB
Java
/*
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* Copyright (c) 2011, 2014, 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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/*
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* @test
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* @bug 4884238
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* @summary Test standard charset name constants.
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* @author Mike Duigou
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* @run main Standard
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*/
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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import java.io.*;
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import java.nio.charset.*;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Set;
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public class Standard {
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private final static String standardCharsets[] = {
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"US-ASCII", "ISO-8859-1", "UTF-8",
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"UTF-16BE", "UTF-16LE", "UTF-16" };
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public static void realMain(String[] args) {
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check(StandardCharsets.US_ASCII instanceof Charset);
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check(StandardCharsets.ISO_8859_1 instanceof Charset);
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check(StandardCharsets.UTF_8 instanceof Charset);
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check(StandardCharsets.UTF_16BE instanceof Charset);
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check(StandardCharsets.UTF_16LE instanceof Charset);
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check(StandardCharsets.UTF_16 instanceof Charset);
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check("US-ASCII".equals(StandardCharsets.US_ASCII.name()));
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check("ISO-8859-1".equals(StandardCharsets.ISO_8859_1.name()));
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check("UTF-8".equals(StandardCharsets.UTF_8.name()));
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check("UTF-16BE".equals(StandardCharsets.UTF_16BE.name()));
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check("UTF-16LE".equals(StandardCharsets.UTF_16LE.name()));
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check("UTF-16".equals(StandardCharsets.UTF_16.name()));
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check(Charset.forName("US-ASCII") == StandardCharsets.US_ASCII);
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check(Charset.forName("ISO-8859-1") == StandardCharsets.ISO_8859_1);
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check(Charset.forName("UTF-8") == StandardCharsets.UTF_8);
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check(Charset.forName("UTF-16BE") == StandardCharsets.UTF_16BE);
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check(Charset.forName("UTF-16LE") == StandardCharsets.UTF_16LE);
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check(Charset.forName("UTF-16") == StandardCharsets.UTF_16);
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Set<String> charsets = new HashSet<>();
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Field standardCharsetFields[] = StandardCharsets.class.getFields();
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for(Field charsetField : standardCharsetFields) {
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check(StandardCharsets.class == charsetField.getDeclaringClass());
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check(Modifier.isFinal(charsetField.getModifiers()));
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check(Modifier.isStatic(charsetField.getModifiers()));
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check(Modifier.isPublic(charsetField.getModifiers()));
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Object value;
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try {
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value = charsetField.get(null);
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} catch(IllegalAccessException failure) {
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unexpected(failure);
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continue;
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}
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check(value instanceof Charset);
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charsets.add(((Charset)value).name());
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}
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check(charsets.containsAll(Arrays.asList(standardCharsets)));
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charsets.removeAll(Arrays.asList(standardCharsets));
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check(charsets.isEmpty());
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}
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//--------------------- Infrastructure ---------------------------
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static volatile int passed = 0, failed = 0;
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static void pass() { passed++; }
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static void fail() { failed++; Thread.dumpStack(); }
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static void fail(String msg) { System.out.println(msg); fail(); }
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static void unexpected(Throwable t) { failed++; t.printStackTrace(); }
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static void check(boolean cond) { if (cond) pass(); else fail(); }
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static void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else {System.out.println(x + " not equal to " + y); fail();}}
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static void equal2(Object x, Object y) {equal(x, y); equal(y, x);}
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public static void main(String[] args) throws Throwable {
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try { realMain(args); } catch (Throwable t) { unexpected(t); }
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new Exception("Some tests failed");
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}
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static byte[] serializedForm(Object obj) {
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try {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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new ObjectOutputStream(baos).writeObject(obj);
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return baos.toByteArray();
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} catch (IOException e) { throw new Error(e); }}
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static Object readObject(byte[] bytes)
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throws IOException, ClassNotFoundException {
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InputStream is = new ByteArrayInputStream(bytes);
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return new ObjectInputStream(is).readObject();}
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@SuppressWarnings("unchecked")
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static <T> T serialClone(T obj) {
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try { return (T) readObject(serializedForm(obj)); }
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catch (Exception e) { throw new Error(e); }}
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}
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