org.marketcetera.util.unicode.UnicodeCharsetTest.java Source code

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Here is the source code for org.marketcetera.util.unicode.UnicodeCharsetTest.java

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package org.marketcetera.util.unicode;

import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.CharEncoding;
import org.junit.Test;
import org.marketcetera.util.test.TestCaseBase;

import static org.junit.Assert.*;
import static org.marketcetera.util.test.UnicodeData.*;
import static org.marketcetera.util.unicode.UnicodeCharset.*;

/**
 * @author tlerios@marketcetera.com
 * @since 0.6.0
 * @version $Id$
 */

/* $License$ */

public class UnicodeCharsetTest extends TestCaseBase {
    private static void singlePrefix(UnicodeCharset charset, String name, byte[] dataIn, byte[] dataOut)
            throws Exception {
        assertEquals(name, charset.getName());

        assertTrue(charset.isSupported());
        charset.assertSupported();

        assertNull(charset.decode(null));
        assertNull(charset.decode(null, 0, 0));
        assertNull(charset.encode(null));

        assertEquals(COMBO, charset.decode(dataIn));

        byte[] inEx = ArrayUtils.addAll(new byte[] { (byte) 0x00, (byte) 0x01 }, dataIn);
        inEx = ArrayUtils.addAll(inEx, new byte[] { (byte) 0x00, (byte) 0x01 });
        assertEquals(COMBO, charset.decode(inEx, 2, inEx.length - 4));
        assertArrayEquals(dataOut, charset.encode(COMBO));
    }

    private static void single(UnicodeCharset charset, String name, byte[] data) throws Exception {
        singlePrefix(charset, name, data, data);
    }

    @Test
    public void utf8() throws Exception {
        single(UTF8, CharEncoding.UTF_8, COMBO_UTF8);
    }

    @Test
    public void utf16() throws Exception {
        single(UTF16BE, CharEncoding.UTF_16BE, COMBO_UTF16BE);
        single(UTF16LE, CharEncoding.UTF_16LE, COMBO_UTF16LE);

        byte[] dataOut = ArrayUtils.addAll(Signature.UTF16BE.getMark(), COMBO_UTF16BE);
        singlePrefix(UTF16, CharEncoding.UTF_16, COMBO_UTF16BE, dataOut);
        singlePrefix(UTF16, CharEncoding.UTF_16, ArrayUtils.addAll(Signature.UTF16BE.getMark(), COMBO_UTF16BE),
                dataOut);
        singlePrefix(UTF16, CharEncoding.UTF_16, ArrayUtils.addAll(Signature.UTF16LE.getMark(), COMBO_UTF16LE),
                dataOut);
    }

    @Test
    public void utf32() throws Exception {
        single(UTF32BE, "UTF-32BE", COMBO_UTF32BE);
        single(UTF32LE, "UTF-32LE", COMBO_UTF32LE);

        singlePrefix(UTF32, "UTF-32", COMBO_UTF32BE, COMBO_UTF32BE);
        singlePrefix(UTF32, "UTF-32", ArrayUtils.addAll(Signature.UTF32BE.getMark(), COMBO_UTF32BE), COMBO_UTF32BE);
        singlePrefix(UTF32, "UTF-32", ArrayUtils.addAll(Signature.UTF32LE.getMark(), COMBO_UTF32LE), COMBO_UTF32BE);
    }
}