byte[] buffer = new byte[256];
        int result = request.readBytesWireFormat(buffer, 0);

        assertEquals(0, result);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 10, 50, 100 })
    @DisplayName("writeBytesWireFormat should work at different offsets")
    void testWriteBytesWireFormatAtDifferentOffsets(int offset) {
        byte[] buffer = new byte[512];

    void testWriteSetupWireFormatWithVariousFids(int fid, byte expectedLow, byte expectedHigh) {
        // Arrange
        transPeekNamedPipe = new TransPeekNamedPipe(mockConfig, TEST_PIPE_NAME, fid);
        byte[] buffer = new byte[10];
        int offset = 0;

        // Act
        int bytesWritten = transPeekNamedPipe.writeSetupWireFormat(buffer, offset);

        // Assert

        assertEquals(1, pool.failCounts.get("10.0.0.1"));
        assertEquals(1, pool.failCounts.get("10.0.0.2"));
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, -1 })
    @DisplayName("Should default to port 445 when port <= 0")
    void testDefaultPort(int invalidPort) throws Exception {
        // Given: Create a new pool for this test to ensure isolation
        SmbTransportPoolImpl testPool = new SmbTransportPoolImpl();

        void testSizeCalculation(int hashAlgoCount) {
            // Arrange
            int[] hashAlgos = new int[hashAlgoCount];
            byte[] salt = new byte[16];
            context = new PreauthIntegrityNegotiateContext(mockConfig, hashAlgos, salt);

            // Act
            int size = context.size();

            // Assert
            assertEquals(4 + (2 * hashAlgoCount) + 16, size);

            for (int i = 0; i < 100; i++) {
                int bytesRead = response.readBytesWireFormat(buffer, 0);
                // Then
                assertEquals(4, bytesRead, "Failed at iteration " + i);
            }

            // When - perform multiple write operations
            for (int i = 0; i < 100; i++) {
                int bytesWritten = response.writeBytesWireFormat(buffer, 0);

        // Test size calculation
        int size = request.size();
        int expectedRawSize = Smb2Constants.SMB2_HEADER_LENGTH + 32 + 64;
        int expectedSize = (expectedRawSize + 7) & ~7;
        assertEquals(expectedSize, size);

        // Test wire format writing
        byte[] buffer = new byte[512];
        int bytesWritten = request.writeBytesWireFormat(buffer, 64);

        }

        @ParameterizedTest
        @ValueSource(ints = { 0, 1, 2, 3, 5, 6, 100, 65535 })
        @DisplayName("Should throw exception for various invalid structure sizes")
        void testReadBytesWireFormatVariousInvalidSizes(int structureSize) {
            byte[] buffer = new byte[1024];
            int bufferIndex = 50;

            SMBUtil.writeInt2(structureSize, buffer, bufferIndex);

    }

    // Duplicate testFlags method removed - keeping the first one

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 64, 1024, 4096, 65536 })
    @DisplayName("Should handle various message sizes")
    void testVariousMessageSizes(int messageSize) {
        // When
        transformHeader.setOriginalMessageSize(messageSize);

        // Then

        // High bytes should be dots
        assertTrue(output.contains("..."));
    }

    @ParameterizedTest
    @ValueSource(ints = { 1, 15, 16, 17, 31, 32, 33, 64, 128 })
    @DisplayName("Should handle various data sizes in hexdump")
    void testHexdumpVariousSizes(int size) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PrintStream ps = new PrintStream(baos);

        // Given - large buffer with many notifications
        byte[] buffer = new byte[65536];
        int offset = 0;

        setHeaderStart(response, 64);

        // Calculate space for notifications
        int notificationSize = 32; // Each notification
        int notificationCount = 100;
        int totalSize = notificationSize * notificationCount;

        // Write structure