}

	// To generate random offset/length.
	r := rand.New(rand.NewSource(UTCNow().UnixNano()))

	buf := &bytes.Buffer{}

	// Verify erasure.Decode() for random offsets and lengths.
	for range iterations {
		offset := r.Int63n(length)
		readLen := r.Int63n(length - offset)

		expected := data[offset : offset+readLen]

		// Get the checksums of the current part.

// Case 2: bytes=1-10 (absolute start and end offsets) -> RangeSpec{false, 1, 10}
// Case 3: bytes=10- (absolute start offset with end offset unspecified) -> RangeSpec{false, 10, -1}
// Case 4: bytes=-30 (suffix length specification) -> RangeSpec{true, -30, -1}
type HTTPRangeSpec struct {
	// Does the range spec refer to a suffix of the object?
	IsSuffixLength bool

	// Start and end offset specified in range spec
	Start, End int64
}

        @DisplayName("Should read response at various buffer offsets")
        @ValueSource(ints = { 0, 10, 100, 500 })
        void testReadAtDifferentOffsets(int offset) throws SMBProtocolDecodingException {
            byte[] buffer = new byte[1024];
            byte[] responseData = createValidWriteResponse(2048, 1024);
            System.arraycopy(responseData, 0, buffer, offset, responseData.length);

            assertEquals(ttl, ref.getTtl());
        }
    }

    // Buffer Offset Tests

    @Test
    public void testDecodeFromNonZeroIndex() {
        int offset = 100;
        ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);

        bb.position(offset);
        bb.putShort((short) 1);
        bb.putShort((short) 24);
        bb.putShort((short) 1);

        buffer.putShort((short) 0x8004); // Control flags (SE_DACL_PRESENT | SE_SELF_RELATIVE)
        buffer.putInt(20); // Owner offset
        buffer.putInt(40); // Group offset
        buffer.putInt(0); // SACL offset (null)
        buffer.putInt(60); // DACL offset

        // Owner SID at offset 20
        buffer.position(20);
        buffer.put((byte) 0x01); // Revision
        buffer.put((byte) 0x01); // SubAuthorityCount

        SmbComTransaction result = transaction.nextElement();

        assertSame(transaction, result);
    }

    @Test
    @DisplayName("Test pad calculation with various offsets")
    void testPadCalculation() {
        // Test pad calculation with different alignment values
        assertEquals(0, transaction.pad(0)); // Already aligned
        assertEquals(0, transaction.pad(4)); // Already aligned

        }

        bufferIndex += 12;

        // Validate sufficient buffer space for timestamps and offsets
        if (buffer.length < bufferIndex + 8 + 8 + 4 + 4) {
            throw new SMBProtocolDecodingException("Buffer too small for timestamps and offsets section");
        }

        this.systemTime = SMBUtil.readTime(buffer, bufferIndex);
        bufferIndex += 8;

    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;
    static final int QUESTION_OFFSET = 4;
    static final int ANSWER_OFFSET = 6;
    static final int AUTHORITY_OFFSET = 8;
    static final int ADDITIONAL_OFFSET = 10;

    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;
    static final int QUESTION_OFFSET = 4;
    static final int ANSWER_OFFSET = 6;
    static final int AUTHORITY_OFFSET = 8;
    static final int ADDITIONAL_OFFSET = 10;

        assertEquals(0, result);
    }

    @Test
    @DisplayName("Test boundary conditions for buffer offsets")
    void testBoundaryConditions() {
        byte[] smallBuffer = new byte[10];

        // Test with maximum offset
        int result = response.writeSetupWireFormat(smallBuffer, Integer.MAX_VALUE);
        assertEquals(0, result);