Bug4185816Test.java

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/*
 * @test
 * @bug 4185816
 * @library /java/text/testlib
 * @build Bug4185816Test IntlTest HexDumpReader
 * @run main Bug4185816Test
 * @summary test that MessageFormat invariants are preserved across serialization
 */
/*
 *
 *
 * (C) Copyright IBM Corp. 1996 - 1999 - All Rights Reserved
 *
 * Portions copyright (c) 2007 Sun Microsystems, Inc.
 * All Rights Reserved.
 *
 * The original version of this source code and documentation
 * is copyrighted and owned by Taligent, Inc., a wholly-owned
 * subsidiary of IBM. These materials are provided under terms
 * of a License Agreement between Taligent and Sun. This technology
 * is protected by multiple US and International patents.
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 * Permission to use, copy, modify, and distribute this software
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 * fee is hereby granted provided that this copyright notice
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 */

import java.util.*;
import java.io.*;
import java.text.ChoiceFormat;
import java.text.MessageFormat;

/**
 *  A Locale can never contains language codes of he, yi or id.
 */
public class Bug4185816Test extends IntlTest {
    private static final String FILE_NAME = "Bug4185816.ser";
    private static final String CORRUPT_FILE_NAME = "Bug4185816Corrupt.ser";

    public static void main(String[] args) throws Exception {
        if (args.length == 1 && args[0].equals("prepTest")) {
            prepTest();
        } else {
            new Bug4185816Test().run(args);
        }
    }

    public void testIt() throws Exception {
        Exception e = checkStreaming(FILE_NAME);
        if (e != null) {
            errln("MessageFormat did not stream in valid stream: "+e);
            e.printStackTrace();
        }
        e = checkStreaming(CORRUPT_FILE_NAME);
        if (!(e instanceof InvalidObjectException)) {
            errln("MessageFormat did NOT detect corrupt stream: "+e);
            e.printStackTrace();
        }
    }

    public Exception checkStreaming(final String fileName) {
        try {
            final InputStream is = HexDumpReader.getStreamFromHexDump(fileName + ".txt");
            final ObjectInputStream in = new ObjectInputStream(is);
            final MessageFormat form = (MessageFormat)in.readObject();
            final Object[] testArgs = {12373L, "MyDisk"};
            final String result = form.format(testArgs);
            in.close();
        } catch (Exception e) {
            return e;
        }
        return null;
    }

    /**
     * Create a data file for this test.  The data file must be corrupted by hand.
     */
    private static void prepTest() {
        writeFormatToFile(FILE_NAME);
        writeFormatToFile(CORRUPT_FILE_NAME);
    }

    private static void writeFormatToFile(final String name) {
        try {
            ObjectOutputStream out = new ObjectOutputStream(
                    new FileOutputStream(name));

            MessageFormat fmt = new MessageFormat("The disk \"{1}\" contains {0}.");
            double[] filelimits = {0,1,2};
            String[] filepart = {"no files","one file","{0,number} files"};
            ChoiceFormat fileform = new ChoiceFormat(filelimits, filepart);
            fmt.setFormat(1,fileform); // NOT zero, see below

            out.writeObject(fmt);
            out.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}