int len = testMessage.encode(buffer, 0);
            assertTrue(len >= Smb2Constants.SMB2_HEADER_LENGTH);
        }

        @Test
        @DisplayName("Should handle large MID values")
        void testLargeMidValue() {
            long largeMid = Long.MAX_VALUE;
            testMessage.setMid(largeMid);
            assertEquals(largeMid, testMessage.getMid());

            // HashCode should handle overflow correctly