Ian Lance Taylor <******@****.***> 1734463877 -0800

        void testReadValidOplockBreakNotification() throws Exception {
            // Create a valid buffer with structure size 24
            byte[] buffer = new byte[64];
            int bufferIndex = 0;

            // Write structure size (24)
            SMBUtil.writeInt2(24, buffer, bufferIndex);

            // Write oplock level at offset 2
            byte expectedOplockLevel = (byte) 0x02; // SMB2_OPLOCK_LEVEL_II

    class SizeTests {

        @Test
        @DisplayName("Should return constant size of 24 bytes")
        void testSize() {
            lock = new Smb2Lock(100L, 200L, Smb2Lock.SMB2_LOCKFLAG_SHARED_LOCK);

            assertEquals(24, lock.size());
        }

        @ParameterizedTest
        @DisplayName("Should return 24 bytes regardless of parameters")

        // Then
        assertEquals(0, SMBUtil.readInt2(buffer1, 2));
        assertEquals(0, SMBUtil.readInt4(buffer1, 24));
        assertEquals(0x0001, SMBUtil.readInt2(buffer2, 2));
        assertEquals(0xFFF, SMBUtil.readInt4(buffer2, 24));
    }

    // first range open end, second range open start
    assertEquals(Range.closed(2, 4), Range.lessThan(2).gap(openRange));
    assertEquals(Range.closed(2, 4), openRange.gap(Range.lessThan(2)));

    // first range closed end, second range open start
    assertEquals(Range.openClosed(2, 4), Range.atMost(2).gap(openRange));
    assertEquals(Range.openClosed(2, 4), openRange.gap(Range.atMost(2)));

        ValidateNegotiateInfoRequest request =
                new ValidateNegotiateInfoRequest(DEFAULT_CAPABILITIES, defaultClientGuid, DEFAULT_SECURITY_MODE, emptyDialects);

        // Expected size: 24 (fixed) + 0
        assertEquals(24, request.size());
    }

    @Test
    @DisplayName("Test encode with standard parameters")
    void testEncodeStandardParameters() {
        ValidateNegotiateInfoRequest request =

            ByteBuffer bb = ByteBuffer.wrap(buffer, offset, 24).order(ByteOrder.LITTLE_ENDIAN);
            bb.putLong(5000L);
            bb.putLong(2500L);
            bb.putInt(16);
            bb.putInt(1024);

            // When
            int bytesConsumed = fileFsSizeInfo.decode(buffer, offset, 24);

            // Then
            assertEquals(24, bytesConsumed);

        SMBUtil.writeInt2(testDialect, buffer, bufferIndex + 22);

        // Execute decode
        int bytesDecoded = response.decode(buffer, bufferIndex, 24);

        // Verify results
        assertEquals(24, bytesDecoded, "Should decode exactly 24 bytes");
        assertEquals(testCapabilities, response.getCapabilities(), "Capabilities should match");

                securityProvider.wrap(buf);
            }

            tot = buf.getLength() - 24;
            off = 0;

            while (off < tot) {
                n = tot - off;

                if (24 + n > max_xmit) {
                    msg.flags &= ~DCERPC_LAST_FRAG;
                    n = max_xmit - 24;
                } else {
                    msg.flags |= DCERPC_LAST_FRAG;

        int written = request.writeBytesWireFormat(buffer, offset);

        // Verify bytes written
        assertEquals(24, written);

        // Verify structure size (should be 24)
        assertEquals(24, SMBUtil.readInt2(buffer, offset));

        // Verify close flags (2 bytes at offset+2, should be 0 by default)
        assertEquals(0, SMBUtil.readInt2(buffer, offset + 2));