// Test with specific value (Unix timestamp in milliseconds)
        SMBUtil.writeUTime(1500000000000L, dst, 4);
        assertEquals(1500000000, SMBUtil.readInt4(dst, 4));
    }

    @Test
    void testSMBHeader() {
        assertNotNull(SMBUtil.SMB_HEADER);
        assertEquals(24, SMBUtil.SMB_HEADER.length);

        // Verify SMB header signature
        assertEquals((byte) 0xFF, SMBUtil.SMB_HEADER[0]);