itextpdf-master/itext/src/test/java/com/itextpdf/text/pdf/StringUtilsTest.java
/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2022 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import java.util.Arrays;
import java.util.Collection;

/**
 * Parameterized unit tests for the method StringUtils::convertCharsToBytes
 *
 * @author benoit
 */
@RunWith(Parameterized.class)
public class StringUtilsTest {

    @Parameters
    public static Collection<Object[]> data() {
        return Arrays.asList(new Object[][]{
            {'\u0000', (byte) 0x0, (byte) 0x0},
            {'\b', (byte) 0x0, (byte) 0x08},
            {'a', (byte) 0x0, (byte) 0x61},
            {'ة', (byte) 0x06, (byte) 0x29}, // Arabic characters
            {'\ud7ff', (byte) 0xd7, (byte) 0xff}, // just outside of a special Unicode range
            {'\ud800', (byte) 0xd8, (byte) 0x0}, // in a special Unicode range
            {'\uda82', (byte) 0xda, (byte) 0x82}, // in a special Unicode range
            {'\udbb0', (byte) 0xdb, (byte) 0xb0}, // in a special Unicode range
            {'\udfff', (byte) 0xdf, (byte) 0xff}, // in a special Unicode range
            {'\ue000', (byte) 0xe0, (byte) 0x0}, // just outside of a special Unicode range
            {'\ufffd', (byte) 0xff, (byte) 0xfd},
            {'\uffff', (byte) 0xff, (byte) 0xff},});
    }

    private final char input;
    private final byte check1, check2;

    public StringUtilsTest(char in, byte c1, byte c2) {
        input = in;
        check1 = c1;
        check2 = c2;
    }

    @Test
    public void convertCharsToBytesTest() {
        byte[] check = {check1, check2};
        char[] vals = {input};
        byte[] result = StringUtils.convertCharsToBytes(vals);

        Assert.assertArrayEquals(check, result);
    }
}
