// enclosed, interior
    assertEquals(Range.closed(5, 7), range.intersection(Range.closed(5, 7)));

    // enclosed with same end
    assertEquals(Range.closed(6, 8), range.intersection(Range.closed(6, 8)));

    // equal
    assertEquals(range, range.intersection(range));

    // enclosing with same start
    assertEquals(range, range.intersection(Range.closed(4, 10)));

        int expectedFlags = DirectoryLeaseContext.DIRECTORY_LEASE_FLAG_RECURSIVE | DirectoryLeaseContext.DIRECTORY_LEASE_FLAG_NOTIFICATIONS;
        assertEquals(expectedFlags, SMBUtil.readInt4(buffer, 68));

        // Verify notification filter
        assertEquals(0x1F, SMBUtil.readInt4(buffer, 72));
    }

    @Test
    public void testDecode() {
        // Create a context and encode it

        int bytesWritten = packet.writeTrailerWireFormat(dst, 0);

        assertTrue(bytesWritten > 0);
        // Each name should write at least 34 bytes (encoded name + scope)
        assertTrue(bytesWritten >= 68);
    }

    @Test
    @DisplayName("writeTrailerWireFormat with scope should handle scoped names")
    void testWriteTrailerWireFormatWithScope() {
        when(mockCalledName.getName()).thenReturn("SERVER");

    assertTrue(rangeSet.intersects(Range.open(6, 8)));
    assertFalse(rangeSet.intersects(Range.closed(3, 6)));
    assertTrue(rangeSet.intersects(Range.greaterThan(5)));
    assertFalse(rangeSet.intersects(Range.lessThan(1)));

    assertTrue(rangeSet.encloses(Range.closed(1, 2)));
    assertTrue(rangeSet.encloses(Range.open(6, 8)));
    assertFalse(rangeSet.encloses(Range.closed(1, 8)));

    // enclosed, interior
    assertEquals(Range.closed(5, 7), range.intersection(Range.closed(5, 7)));

    // enclosed with same end
    assertEquals(Range.closed(6, 8), range.intersection(Range.closed(6, 8)));

    // equal
    assertEquals(range, range.intersection(range));

    // enclosing with same start
    assertEquals(range, range.intersection(Range.closed(4, 10)));

        }
    }

    @Test
    void testSMB2Header() {
        assertNotNull(SMBUtil.SMB2_HEADER);
        // The actual header is 68 bytes (4 + 2 + 2 + 2 + 2 + 4 + 2 + 2 + 4 + 4 + 8 + 4 + 4 + 8 + 8 + 8 = 68)
        assertEquals(68, SMBUtil.SMB2_HEADER.length);

        // Verify SMB2 header signature
        assertEquals((byte) 0xFE, SMBUtil.SMB2_HEADER[0]);

        | ((0x80L | (0x3F & codePoint)) << 24);
  }

  private static long charToThreeUtf8Bytes(char c) {
    return ((0x7L << 5) | (c >>> 12))
        | ((0x80 | (0x3F & (c >>> 6))) << 8)
        | ((0x80 | (0x3F & c)) << 16);
  }

  private static long charToTwoUtf8Bytes(char c) {
    // c has at most 11 bits
    return ((0x3L << 6) | (c >>> 6)) | ((0x80 | (0x3F & c)) << 8);
  }

        SMBUtil.writeInt4(0, buffer, 64); // eaSize

        // Write short name length and short name
        byte[] shortNameBytes = Strings.getUNIBytes(shortName);
        buffer[68] = (byte) shortNameBytes.length; // shortNameLength
        System.arraycopy(shortNameBytes, 0, buffer, 70, Math.min(shortNameBytes.length, 24));

        // Write filename
        if (unicode) {

        byte[] buffer = new byte[512];
        int bytesWritten = request.writeBytesWireFormat(buffer, 64);

        // Verify buffer length field contains the info size
        int bufferLength = SMBUtil.readInt4(buffer, 68);
        assertEquals(infoSize, bufferLength);

        // Verify total bytes written
        assertEquals(32 + infoSize, bytesWritten);
    }

    @Test

        }

        @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
    @DisplayName("WriteBytesWireFormat Tests")