// Test various integer values
        assertEquals("00000000", Hexdump.toHexString(0, 8));
        assertEquals("000000FF", Hexdump.toHexString(255, 8));
        assertEquals("00001000", Hexdump.toHexString(4096, 8));
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));

        // Test different sizes
        assertEquals("00", Hexdump.toHexString(0, 2));
        assertEquals("FF", Hexdump.toHexString(255, 2));

        // Verify the PAC version
        assertEquals(0, PacConstants.PAC_VERSION, "PAC_VERSION should be 0");

        // Verify PAC buffer types
        assertEquals(1, PacConstants.LOGON_INFO, "LOGON_INFO should be 1");
        assertEquals(2, PacConstants.CREDENTIAL_TYPE, "CREDENTIAL_TYPE should be 2");
        assertEquals(6, PacConstants.SERVER_CHECKSUM, "SERVER_CHECKSUM should be 6");

        // Clone and verify basic fields copied
        JAASAuthenticator copy = (JAASAuthenticator) orig.clone();
        assertEquals(orig.getUsername(), copy.getUsername());
        assertEquals(orig.getUserDomain(), copy.getUserDomain());
        assertEquals(orig.getPassword(), copy.getPassword());

        // Test the cloning behavior with both null and non-null cached subjects
        if (first != null) {

     */
    @Test
    void testConstructor() {
        // Verify that the id and attributes are correctly set by the constructor
        assertEquals(sidMock, pacSidAttributes.getId(), "The SID should match the one provided in the constructor.");
        assertEquals(attributes, pacSidAttributes.getAttributes(), "The attributes should match the ones provided in the constructor.");
    }

    /**

    assertEquals(0, actual.indexOf(list(1, 3)));
    assertEquals(1, actual.indexOf(list(1, 4)));
    assertEquals(2, actual.indexOf(list(2, 3)));
    assertEquals(3, actual.indexOf(list(2, 4)));
    assertEquals(-1, actual.indexOf(list(3, 1)));

    assertEquals(-1, actual.indexOf(list(1)));
    assertEquals(-1, actual.indexOf(list(1, 1, 1)));
  }

        assertEquals("Default message should match", "{jakarta.validation.constraints.Size.message}", getDefaultMessage());
        assertEquals("Default groups should be empty", 0, getDefaultGroups().length);
        assertEquals("Default payload should be empty", 0, getDefaultPayload().length);
        assertEquals("Default minKey should be empty", StringUtil.EMPTY, getDefaultMinKey());

        assertEquals(1000, channelInfo.getBytesSent());
        assertEquals(2000, channelInfo.getBytesReceived());
        assertEquals(1, channelInfo.getRequestsSent());
        assertEquals(1, channelInfo.getErrors());
        assertEquals(1.0, channelInfo.getErrorRate(), 0.01);
    }

    @Test
    void testPendingOperations() {
        assertEquals(0, channelInfo.getRequestsPending());

        assertEquals(0, transaction.pad(0)); // Already aligned
        assertEquals(0, transaction.pad(4)); // Already aligned
        assertEquals(0, transaction.pad(8)); // Already aligned
        assertEquals(3, transaction.pad(1)); // Need 3 bytes to align to 4
        assertEquals(2, transaction.pad(2)); // Need 2 bytes to align to 4
        assertEquals(1, transaction.pad(3)); // Need 1 byte to align to 4

    assertEquals(0, CharStreams.exhaust(empty));
    assertEquals(-1, empty.read());
  }

  public void testExhaust_readable() throws IOException {
    CharBuffer buf = CharBuffer.wrap(ASCII);
    assertEquals(ASCII.length(), CharStreams.exhaust(buf));
    assertEquals(0, buf.remaining());
    assertEquals(0, CharStreams.exhaust(buf));

    CharBuffer empty = CharBuffer.wrap("");
    assertEquals(0, CharStreams.exhaust(empty));

    assertEquals(0, CharStreams.exhaust(empty));
    assertEquals(-1, empty.read());
  }

  public void testExhaust_readable() throws IOException {
    CharBuffer buf = CharBuffer.wrap(ASCII);
    assertEquals(ASCII.length(), CharStreams.exhaust(buf));
    assertEquals(0, buf.remaining());
    assertEquals(0, CharStreams.exhaust(buf));

    CharBuffer empty = CharBuffer.wrap("");
    assertEquals(0, CharStreams.exhaust(empty));