}

    @Test
    @DisplayName("parsing malformed token throws IOException")
    void testMalformedToken() {
        byte[] bad = new byte[] { 0x01, 0x02, 0x03 }; // not a valid ASN.1 tagged object
        assertThrows(IOException.class, () -> new NegTokenTarg(bad), "Malformed byte[] should cause IOException");
    }

    @Test

func (c *Config) Update(ncfg Config) {
	configLock.Lock()
	defer configLock.Unlock()

	c.Enable = ncfg.Enable
	c.Frequency = ncfg.Frequency
}

// LookupConfig - lookup config and override with valid environment settings if any.
func LookupConfig(kvs config.KVS) (cfg Config, err error) {
	if err = config.CheckValidKeys(config.CallhomeSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

   *   <li>{@code 0X}<i>HexDigits</i>
   *   <li>{@code #}<i>HexDigits</i>
   *   <li>{@code 0}<i>OctalDigits</i>
   * </ul>
   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code int} value
   * @since 13.0
   */
  @CanIgnoreReturnValue
  public static int decode(String stringValue) {
    ParseRequest request = ParseRequest.fromString(stringValue);

    try {

		"bytes==1-10",
		"bytes=",
		"bytes=aa",
		"aa",
		"",
		"bytes=1-10-",
		"bytes=1--10",
		"bytes=-1-10",
		"bytes=0-+3",
		"bytes=+3-+5",
		"bytes=10-11,12-10", // Unsupported by S3/MinIO (valid in RFC)
	}
	for i, urs := range unparsableRangeSpecs {
		rs, err := parseRequestRangeSpec(urs)
		if err == nil {
			t.Errorf("Case %d: Did not get an expected error - got %v", i, rs)
		}
		if isErrInvalidRange(err) {

var errNegativeRead = errors.New("bytes.Buffer: reader returned negative count from Read")

const maxInt = int(^uint(0) >> 1)

// Bytes returns a slice of length b.Len() holding the unread portion of the buffer.
// The slice is valid for use only until the next buffer modification (that is,
// only until the next call to a method like [Buffer.Read], [Buffer.Write], [Buffer.Reset], or [Buffer.Truncate]).

    class EdgeCasesTests {

        @Test
        @DisplayName("Should handle malformed buffer gracefully")
        void testReadDataWireFormatMalformedBuffer() {
            byte[] buffer = new byte[3]; // Too small for valid DFS referral

            assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
                response.readDataWireFormat(buffer, 0, buffer.length);
            });
        }

        @Test

    private String lastmod;

    /**
     * How frequently the page is likely to change. This value provides general
     * information to search engines and may not correlate exactly to how often
     * they crawl the page. Valid values are:
     * <ul>
     * <li>always</li>
     * <li>hourly</li>
     * <li>daily</li>
     * <li>weekly</li>
     * <li>monthly</li>
     * <li>yearly</li>
     * <li>never</li>
     * </ul>

        // Initially not open (isStale returns false when handle is null, not true)
        assertFalse(target.isOpen());
        assertFalse(target.isStale());

        // After ensureOpen, handle valid -> open
        SmbFileHandleImpl fh = target.ensureOpen();
        assertSame(fileHandle, fh);
        assertTrue(target.isOpen());
        assertFalse(target.isStale());

        assertEquals(len, result, "readDataWireFormat should return the length when pipeIn is null.");
    }

    /**
     * Tests the readDataWireFormat method when the pipe has a valid input stream.
     */
    @Test
    void testReadDataWireFormat_withPipeIn() {
        // Setup the mock pipe and its input stream
        mockPipe.pipeIn = mockPipeIn;

            assertNull(nc.dc);
        }
    }

    @Nested
    @DisplayName("toString() Tests")
    class ToStringTests {

        @Test
        @DisplayName("toString with valid data produces expected format")
        void testToStringWithValidData() {
            byte[] challenge = new byte[] { (byte) 0x01, (byte) 0x02, (byte) 0x03, (byte) 0xFF };
            UniAddress dc = mock(UniAddress.class);