}

    @Test
    void testEncodeWritesCorrectHeader() throws Exception {
        TestMessage m = new TestMessage();
        m.ptype = 0;
        m.flags = 0x05;
        m.call_id = 0x123;

        NdrBuffer buf = new NdrBuffer(new byte[1024], 0);
        m.encode(buf);

        // Reset to read what was written
        buf.setIndex(0);

        // Verify header was written correctly

    class ParameterizedInit {
        static Stream<Arguments> validRanges() {
            byte[] src = new byte[] { 0, 1, 2, 3 };
            return Stream.of(Arguments.of(src, 0, 0, new byte[] {}), Arguments.of(src, 0, 4, new byte[] { 0, 1, 2, 3 }),
                    Arguments.of(src, 1, 2, new byte[] { 1, 2 }), Arguments.of(src, 3, 1, new byte[] { 3 }));
        }

        // Given - Create a custom implementation
        BasicFileInformation customImpl = new BasicFileInformation() {
            @Override
            public int getAttributes() {
                return 0x123;
            }

            @Override
            public long getCreateTime() {
                return 999L;
            }

            @Override
            public long getLastWriteTime() {

        lsarpc.LsarLookupSids lookupSids = new lsarpc.LsarLookupSids(mockHandle, mockSids, mockDomains, mockNames, (short) 1, 10);

        when(mockNdrBuffer.dec_ndr_long()).thenReturn(0, 20, 123); // _domainsp (null), count, retval

        lookupSids.decode_out(mockNdrBuffer);

        assertNotNull(lookupSids.domains); // Should be initialized by decode

        @Test
        @DisplayName("Should handle various result codes correctly")
        void testVariousResultCodes() throws Exception {
            // Test all known result codes
            int[] validCodes = { 0, 1, 2, 3 };
            String[] expectedMessages = { null, // 0 returns null (no exception)
                    "DCERPC_BIND_ERR_ABSTRACT_SYNTAX_NOT_SUPPORTED", "DCERPC_BIND_ERR_PROPOSED_TRANSFER_SYNTAXES_NOT_SUPPORTED",

curl "http://localhost:8080/json/?q=search&num=10"
```

**Response**:
```json
{
  "response": {
    "version": 1,
    "status": 0,
    "q": "search",
    "exec_time": 0.123,
    "page_size": 10,
    "page_number": 1,
    "record_count": 234,
    "result": [
      {
        "url": "http://example.com/page1",
        "title": "Example Page",