FileFsSizeInformation info = new FileFsSizeInformation();
            byte[] buffer = new byte[10]; // Too small

            // Should throw ArrayIndexOutOfBoundsException for insufficient buffer
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
                info.decode(buffer, 0, buffer.length);
            });
        }

        @ParameterizedTest

        // Create buffer smaller than required size
        byte[] smallBuffer = new byte[request.size() - 1];

        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
            request.encode(smallBuffer, 0);
        });
    }

    @Test
    @DisplayName("Test encode with offset exceeding buffer throws exception")

    }

    @Test
    void testReadDataWireFormatWithNegativeLength() {
        byte[] buffer = new byte[100];
        // Negative length should cause ArrayIndexOutOfBoundsException from System.arraycopy
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> response.readDataWireFormat(buffer, 0, -1));
    }

        @DisplayName("Insufficient buffer causes ArrayIndexOutOfBoundsException")
        void shortBuffer_throwsAIOOBE() {
            // Arrange: length 1 means readInt2 will access index 1 and fail
            byte[] buffer = new byte[1];
            Smb2LogoffResponse resp = newResponse();

            // Act & Assert
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> resp.readBytesWireFormat(buffer, 0));
        }

        writeLittleEndianInt(baos, 100); // size
        writeLittleEndianLong(baos, 1000); // offset way out of bounds
        byte[] pacData = baos.toByteArray();

        // This currently throws ArrayIndexOutOfBoundsException
        // but should be wrapped in PACDecodingException
        assertThrows(Exception.class, () -> new Pac(pacData, keys));
    }

    @Test
    void testZeroBufferCount() throws IOException {

            byte[] data = new byte[100];
            request.setData(data, 200, 50); // Offset beyond array

            byte[] buffer = new byte[256];

            assertThrows(ArrayIndexOutOfBoundsException.class, () -> request.writeBytesWireFormat(buffer, 0));
        }

        @Test
        @DisplayName("Should handle negative offset")
        void testNegativeOffset() {

            if (dstIndex < 0) {
                throw new IllegalArgumentException("Destination index cannot be negative");
            }
            if (dstIndex + encodedSize > dst.length) {
                throw new ArrayIndexOutOfBoundsException("Buffer overflow");
            }

            // Simulate encoding: write header (8 bytes)
            Arrays.fill(dst, dstIndex, dstIndex + 8, (byte) 0xFF);
            int offset = dstIndex + 8;

        // Arrange
        Smb2LogoffRequest req = newRequest();
        byte[] tiny = new byte[3]; // less than 4 bytes available

        // Act/Assert
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> req.writeBytesWireFormat(tiny, 0));
    }

    @Test
    @DisplayName("writeBytesWireFormat throws with negative index")
    void writeBytesWireFormat_throwsIfNegativeIndex() {
        // Arrange

            request.setFileId(shortFileId);

            byte[] buffer = new byte[256];

            // Should handle gracefully or throw appropriate exception
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> request.writeBytesWireFormat(buffer, 0));
        }

        @Test
        @DisplayName("Should handle buffer overflow protection")
        void testBufferOverflowProtection() {

            // Given
            byte[] buffer = new byte[1]; // Too small to read 2-byte structure size

            // When & Then
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> response.readBytesWireFormat(buffer, 0));
        }

        @Test
        @DisplayName("Should throw exception when buffer index out of bounds")