assertNull(Punycode.decode("xn--a-9b.net"))
    assertEquals("a՚.net", Punycode.decode("xn--a-99b.net"))
    assertEquals("a溠.net", Punycode.decode("xn--a-999b.net"))
    assertEquals("a\uD8E2\uDF5C.net", Punycode.decode("xn--a-9999b.net"))
    assertNull(Punycode.decode("xn--a-99999b.net"))
  }

  @Test fun dashInPrefix() {
    testEncodeDecode(
      unicode = "klmnöpqrst-uvwxy",

        // Call the decode method
        ndrLong.decode(mockNdrBuffer);

        // Verify that dec_ndr_long was called exactly once
        verify(mockNdrBuffer, times(1)).dec_ndr_long();
        // Verify that the value field was updated correctly
        assertEquals(decodedValue, ndrLong.value, "Decode should correctly assign the value returned by dec_ndr_long.");

                if (info == null) { /* YOYOYO */
                    info = new DfsEnumStruct();
                }
                info.decode(_src);

            }
            final int _totalentriesp = _src.dec_ndr_long();
            if (_totalentriesp != 0) {
                totalentries.decode(_src);

            }
            retval = _src.dec_ndr_long();
        }
    }

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

/**
 * JUnit 5 tests for AndXServerMessageBlock in legacy smb1 package.
 *
 * The tests use small stub subclasses to drive encode/decode paths and
 * validate batching, chaining, signing, and NT_CREATE_ANDX extended handling.
 */
class AndXServerMessageBlockTest {

    /**
     * Test stub for AndXServerMessageBlock to control read/write logic.
     */

            if (this.netname != null) {
                _dst = _dst.deferred;
                _dst.enc_ndr_string(this.netname);

            }
        }

        @Override
        public void decode(NdrBuffer _src) throws NdrException {
            _src.align(4);
            final int _netnamep = _src.dec_ndr_long();

            if (_netnamep != 0) {
                _src = _src.deferred;

            assertEquals(0, buffer.getNumReferrals());
            assertEquals(0, buffer.getTflags());
        }
    }

    @Nested
    @DisplayName("Decode Tests")
    class DecodeTests {

        @Test
        @DisplayName("Should decode buffer with no referrals")
        void testDecodeNoReferrals() {
            // Prepare test data: pathConsumed=0, numReferrals=0, tflags=0

                _src = _src.deferred;
                root_directory.decode(_src);

            }
            if (_object_namep != 0) {
                if (object_name == null) { /* YOYOYO */
                    object_name = new rpc.unicode_string();
                }
                _src = _src.deferred;
                object_name.decode(_src);

            }
            if (_security_quality_of_servicep != 0) {

        SMBUtil.writeInt2(20, buffer, 42); // byteCount

        int length = testBlock.decode(buffer, 0);

        assertTrue(length > 0);
        assertEquals(4, testBlock.wordCount);
        assertNull(testBlock.getAndx());
    }

    @Test
    @DisplayName("Test decode with retain payload")
    void testDecodeWithRetainPayload() throws SMBProtocolDecodingException {

        return stream(getRoles()).get(stream -> stream.map(this::decode).toArray(n -> new String[n]));
    }

    @Override
    public String[] getGroupNames() {
        return stream(getGroups()).get(stream -> stream.map(this::decode).toArray(n -> new String[n]));
    }

    private String decode(final String value) {
        return new String(Base64.getDecoder().decode(value), Constants.CHARSET_UTF_8);
    }

    @Override

    }

    /**
     * Test case for the decode method.
     * Verifies that the decode method of a concrete implementation is called
     * and interacts with the NdrBuffer as expected.
     * @throws NdrException if decoding fails.
     */
    @Test
    void testDecode() throws NdrException {
        // When
        ndrObject.decode(mockBuffer);

        // Then