assertEquals(123, message.call_id);
        }

        @Test
        @DisplayName("decode_header should throw NdrException for invalid RPC version")
        void testDecodeHeaderThrowsNdrExceptionForRpcVersion() {
            when(mockBuffer.dec_ndr_small()).thenReturn(4); // Incorrect RPC version
            assertThrows(NdrException.class, () -> message.decode_header(mockBuffer));
        }

        @Test