assertEquals(100, message.alloc_hint);
            assertEquals(500, message.result);
        }

        @Test
        @DisplayName("decode should handle BIND_ACK ptype correctly")
        void testDecodeBindAckPtype() throws NdrException {
            message.ptype = DcerpcConstants.RPC_PT_BIND_ACK; // 12

            // Mock NdrBuffer for decode_header
            when(mockBuffer.dec_ndr_small()).thenReturn(5)