assertNotNull(message, String.format("Message for code %d should not be null", code));
            }
        }
    }

    @Nested
    @DisplayName("Boundary conditions")
    class Boundary {
        @Test
        void accessingInvalidIndexThrows() {
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> {

        @Test
        @DisplayName("getResultMessage should handle boundary conditions")
        void testGetResultMessageBoundaryConditions() throws Exception {
            // When/Then
            Method getResultMessageMethod = DcerpcBind.class.getDeclaredMethod("getResultMessage", int.class);
            getResultMessageMethod.setAccessible(true);

            // Test boundary at 4 (first unknown code)

    }

    @Test
    void testGetBuffer() {
        assertSame(buffer, ndrBuffer.getBuffer());
    }

    @Test
    void testAlignWithValue() {
        // Align to 4-byte boundary with a fill value
        ndrBuffer.setIndex(1);
        int alignedBytes = ndrBuffer.align(4, (byte) 0xFF);
        assertEquals(3, alignedBytes); // Should advance by 3 bytes (1 -> 4)

        // Then
        // SMB2_HEADER_LENGTH + 4 bytes for tree disconnect structure
        int expectedSize = Smb2Constants.SMB2_HEADER_LENGTH + 4;
        // size8 method aligns to 8-byte boundary
        int alignedSize = (expectedSize + 7) & ~7;
        assertEquals(alignedSize, size);
    }

    @Test
    @DisplayName("Should write correct bytes to wire format")
    void testWriteBytesWireFormat() {

            assertEquals(expectedSize, request.size());
        }

        @Test
        @DisplayName("Should align size to 8-byte boundary")
        void testSizeAlignment() {
            int size = request.size();
            assertEquals(0, size % 8, "Size should be aligned to 8-byte boundary");
        }

        @Test
        @DisplayName("Should have consistent size regardless of parameters")

   *
   * <p>Any parts of the range not already present in this map are mapped to the specified value,
   * unless the value is {@code null}.
   *
   * <p>Any existing entry spanning either range boundary may be split at the boundary, even if the
   * merge does not affect its value. For example, if {@code rangeMap} had one entry {@code [1, 5]
   * => 3} then {@code rangeMap.merge(Range.closed(0,2), 3, Math::max)} could yield a map with the

        // Assert
        assertEquals(4, bytesWritten);
        int writtenFid = SMBUtil.readInt2(dst, 2);
        assertEquals(largeFid, writtenFid);
    }

    @Test
    @DisplayName("Test boundary condition with buffer size equal to data length minus one")
    void testBoundaryBufferSize() {
        // Arrange

        }

        @Test
        @DisplayName("Should handle boundary conditions in decode")
        void testBoundaryConditions() throws SMBProtocolDecodingException {
            byte[] buffer = new byte[100];
            TestCreateContextResponse response = new TestCreateContextResponse("BOUNDARY".getBytes(StandardCharsets.UTF_8));

            // Test at buffer start

        dstIndex += 4;

        // Write context name
        System.arraycopy(CONTEXT_NAME_BYTES, 0, dst, dstIndex, 4);
        dstIndex += 4;

        // Padding to align data to 8-byte boundary
        dstIndex += 4;

        // Write durable handle request data (16 bytes of reserved)
        for (int i = 0; i < 16; i++) {
            dst[dstIndex + i] = 0;
        }
        dstIndex += 16;

        @DisplayName("Should align size to 8-byte boundary")
        void testSizeAlignment() {
            // Test various data lengths to ensure 8-byte alignment
            for (int i = 0; i < 16; i++) {
                request.setData(new byte[i], 0, i);
                int size = request.size();
                assertEquals(0, size % 8, "Size should be aligned to 8-byte boundary");
            }
        }
    }