@Test
    void testStringReadWriteUnicodeWithOddAlignment() throws UnsupportedEncodingException {
        smb.useUnicode = true;
        smb.headerStart = 1; // Make the start odd
        String testString = "Aligned Unicode";
        byte[] buffer = new byte[testString.length() * 2 + 2 + 1]; // +1 for alignment
        int len = smb.writeString(testString, buffer, 1);

        Duration difference = Duration.between(monotonic, system).abs();
        assertTrue(difference.getSeconds() <= 1, "Monotonic time should be reasonably aligned with system time");
    }

                int encodedSize = req.encode(buffer, 0);

                // Verify 8-byte alignment
                assertEquals(0, encodedSize % 8, "Encoded size should be 8-byte aligned for name length " + nameLen);
            }
        }

        @ParameterizedTest
        @ValueSource(ints = { 0, 10, 50, 100, 200 })
        @DisplayName("Should handle various buffer offsets")

            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")

            assertEquals(size1, size2);
        }

        @Test
        @DisplayName("Size should be 72 bytes (64 header + 4 body aligned to 8)")
        void testExactSize() {
            // SMB2_HEADER_LENGTH = 64, body = 4, total = 68
            // size8 aligns to 8-byte boundary: (68 + 7) & ~7 = 72
            assertEquals(72, echoRequest.size());
        }
    }

    @Nested

 * b0b1s7 is the section prefix. If a section is omitted, that means its ranges data exactly matches
 * that of the preceding section.
 *
 * b2b3s2 is the offset into the ranges data. It is shifted by 2 because ranges are 4-byte aligned.
 *
 * Mappings Data (4,719 bytes)
 * ===========================
 *
 * This is UTF-8 character data. It is indexed into by b2b3 in the ranges dataset.
 *
 * Mappings may overlap.
 *
 * ASCII-Only

        byte[] fileId = new byte[16];
        Arrays.fill(fileId, (byte) 0xCC);

        byte[] header = buildSmb2Header();
        int ctxOffsetFromHeader = 256; // arbitrary aligned location beyond header
        byte[] baseBody = buildCreateBodyWithContext(fileId, ctxOffsetFromHeader);

        // Build actual context bytes matching the pointers inside baseBody
        byte[] ctx = new byte[0x40];

            int expectedLength = (Math.min(256, 128) - Smb2QueryInfoResponse.OVERHEAD) & ~0x7;
            assertEquals(expectedLength, actualOutputBufferLength);

            // Result should be aligned to 8 bytes
            assertEquals(0, actualOutputBufferLength % 8);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

            assertEquals(expectedSize, req.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");
        }

        @ParameterizedTest
        @DisplayName("Should calculate size for various lock counts")

            int expectedAligned = (int) size8Method.invoke(req, expectedUnaligned);

            // Then
            assertEquals(expectedAligned, actualSize);
            assertEquals(0, actualSize % 8); // Should be 8-byte aligned
        }
    }

    @Test
    @DisplayName("Should write proper wire format structure")
    void testWireFormatStructure() throws Exception {
        // Given