assertNotNull(factory);
        assertNotNull(factory.scriptEngineMap);
        assertTrue(factory.scriptEngineMap.isEmpty());
    }

    // Test add method with valid parameters
    @Test
    public void test_add_validParameters() {
        TestScriptEngine engine = new TestScriptEngine();
        scriptEngineFactory.add("testEngine", engine);

   *
   * <p><b>Java 8+ users:</b> use {@link Long#parseUnsignedLong(String)} instead.
   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code long}
   *     value
   * @throws NullPointerException if {@code string} is null (in contrast to {@link
   *     Long#parseLong(String)})
   */
  @CanIgnoreReturnValue

            assertEquals(0, result);
        }
    }

    @Nested
    @DisplayName("readBytesWireFormat tests")
    class ReadBytesWireFormatTests {

        @Test
        @DisplayName("Should read valid structure with size 4")
        void testReadBytesWireFormatValid() throws SMBProtocolDecodingException {
            // Given
            byte[] buffer = new byte[10];
            int bufferIndex = 2;

func CheckValidKeys(subSys string, kv KVS, validKVS KVS, deprecatedKeys ...string) error {
	nkv := KVS{}
	for _, kv := range kv {
		// Comment is a valid key, its also fully optional
		// ignore it since it is a valid key for all
		// sub-systems.
		if kv.Key == Comment {
			continue
		}
		var skip bool
		if slices.Contains(deprecatedKeys, kv.Key) {
			skip = true
		}
		if skip {

	if ok {
		return v[0]
	}

	// We couldn't find 'X-Amz-Content-Sha256'.
	return defaultSha256Cksum
}

// isValidRegion - verify if incoming region value is valid with configured Region.
func isValidRegion(reqRegion string, confRegion string) bool {
	if confRegion == "" {
		return true
	}
	if confRegion == "US" {
		confRegion = globalMinioDefaultRegion
	}

	r.bufferPool.New = func() []byte {
		return make([]byte, csvSplitSize+1024)
	}

	// Return first block
	next, nextErr := r.nextSplit(csvSplitSize, r.bufferPool.Get())
	// Check if first block is valid.
	if !utf8.Valid(next) {
		return errInvalidTextEncodingError()
	}

	// Create queue
	r.queue = make(chan *queueItem, runtime.GOMAXPROCS(0))
	r.input = make(chan *queueItem, runtime.GOMAXPROCS(0))
	r.readerWg.Add(1)

        this.memoryRegister = new Object(); // Placeholder

        log.debug("DiSNI memory region registered, size: {}", buffer.remaining());
    }

    @Override
    public void invalidate() {
        if (valid && memoryRegister != null) {
            try {
                // In real implementation, this would deregister the memory:
                // memoryRegister.deregisterMemory();

}

// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
func isRequestSignStreamingV4(r *http.Request) bool {
	return r.Header.Get(xhttp.AmzContentSha256) == streamingContentSHA256 &&
		r.Method == http.MethodPut
}

// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
func isRequestSignStreamingTrailerV4(r *http.Request) bool {

    }

    @Test
    public void test_isSortField() {
        String[] sortFields = { "score", "created", "modified", "title" };
        queryFieldConfig.setSortFields(sortFields);

        // Test valid sort fields
        assertTrue(queryFieldConfig.isSortField("score"));
        assertTrue(queryFieldConfig.isSortField("created"));
        assertTrue(queryFieldConfig.isSortField("modified"));

        assertEquals(rootCause, exception.getCause());

        // Test with null message and valid cause
        TransportException nullMessageException = new TransportException(null, rootCause);
        assertNull(nullMessageException.getMessage());
        assertEquals(rootCause, nullMessageException.getCause());

        // Test with valid message and null cause
        TransportException nullCauseException = new TransportException(message, null);