}

    public void test_withDesCipher() {
        // Test with DES cipher
        InvertibleCryptographer des = InvertibleCryptographer.createDesCipher("12345678");
        FessSecurityResourceProvider provider = new FessSecurityResourceProvider(des, oneWayCryptographer);

        assertNotNull(provider);
        assertEquals(des, provider.providePrimaryInvertibleCryptographer());

		Parts:            nil,
		Erasure: ErasureInfo{
			Algorithm:    ReedSolomon.String(),
			DataBlocks:   4,
			ParityBlocks: 2,
			BlockSize:    10000,
			Index:        1,
			Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
			Checksums: []ChecksumInfo{{
				PartNumber: 1,
				Algorithm:  HighwayHash256S,
				Hash:       nil,
			}},
		},
		MarkDeleted:      false,
		NumVersions:      1,

     */
    @Test
    public void testIsNumver() throws Exception {
        assertFalse(StringUtil.isNumber(null));
        assertTrue(StringUtil.isNumber("0123456789"));
        assertFalse(StringUtil.isNumber("aaaBBBccc"));
        assertFalse(StringUtil.isNumber("０１２３４５６７８９"));
        assertFalse(StringUtil.isNumber(""));
        assertFalse(StringUtil.isNumber("01234abcdef"));
        assertFalse(StringUtil.isNumber("abcdef01234"));

            }
            count++;
        }

        return value;
    }

    static final char[] HEXCHARS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    /**
     * Convert binary integer to hexadecimal string
     *
     * @param value the integer value to convert

import java.net.URL;

import org.codelibs.core.net.URLUtil;
import org.junit.Test;

/**
 * @author koichik
 */
public class CopyUtilTest {

    static byte[] srcBytes = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

    static String srcString = "ABCDEFGHIJKLMN";

    static String urlString = "あいうえお";

    InputStream is = new ByteArrayInputStream(srcBytes);

        @Test
        @DisplayName("Test expiration property")
        void testExpirationProperty() {
            assertNull(testBlock.getExpiration());
            testBlock.setExpiration(123456789L);
            assertEquals(123456789L, testBlock.getExpiration());
        }
    }

    @Nested
    @DisplayName("DFS Resolution Tests")
    class DFSResolutionTests {

        @BeforeEach
        void setup() {

    // Test all non-escaped ASCII characters.
    String s =
        "!@#$%^*()_+=-/?\\|]}[{,.;:"
            + "abcdefghijklmnopqrstuvwxyz"
            + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
            + "1234567890";
    assertEquals(s, xmlEscaper.escape(s));

    // Test ASCII control characters.
    for (char ch = 0; ch < 0x20; ch++) {
      if (ch == '\t' || ch == '\n' || ch == '\r') {

/** Tests for {@code Hashing}. */
@GwtCompatible
@NullMarked
public class HashingTest extends TestCase {
  public void testSmear() {
    assertEquals(1459320713, smear(754102528));
    assertEquals(-160560296, smear(1234567890));
    assertEquals(-1017931171, smear(1));
    assertEquals(-1350072884, smear(-2000000000));
    assertEquals(-809843551, smear(2000000000));
    assertEquals(-309370926, smear(-1155484576));

    @Test
    @DisplayName("Should perform DES encryption/decryption")
    void testDES() throws Exception {
        // Given
        byte[] key = "testkey1".getBytes(); // 8 bytes for DES
        byte[] plaintext = "12345678".getBytes(); // 8 bytes (DES block size)

        // When
        Cipher desCipher = Crypto.getDES(key);
        desCipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key, "DES"));

            'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q',
            'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };

    private static final char PAD = '=';

    private static final byte[] DECODE_TABLE = new byte[128];
    static {
        for (int i = 0; i < DECODE_TABLE.length; i++) {