}

    @ParameterizedTest(name = "decode({1}) -> {2}")
    @MethodSource("decodeProvider")
    void testDecode(String encoded, byte[] expected) {
        // Act
        byte[] actual = Base64.decode(encoded);
        // Assert
        assertArrayEquals(expected, actual, "Base64.decode should return original bytes");
    }

    @Test
    @DisplayName("encode should throw NPE on null input")
    void testEncodeNull() {

        SMBUtil.writeInt4(messageLength, buffer, bufferIndex + 12);
        System.arraycopy(testData, 0, buffer, bufferIndex + 16, testData.length);

        // Decode
        int bytesDecoded = response.decode(buffer, bufferIndex, buffer.length);

        // Verify results
        assertEquals(namedPipeState, response.getNamedPipeState());
        assertEquals(readDataAvailable, response.getReadDataAvailable());

/**
 * Interface for objects that can be decoded from a byte buffer.
 * This interface provides methods for deserializing data from SMB protocol messages.
 *
 * @author mbechler
 */
public interface Decodable {

    /**
     * Decode data from a byte buffer
     *
     * @param buffer the byte buffer containing the data to decode
     * @param bufferIndex the starting index in the buffer

        // Decode
        smbInfoAllocation.decode(buffer, 0, buffer.length);

        // Verify - with sectPerAlloc = 1, capacity = alloc * bytesPerSect
        assertEquals(alloc * bytesPerSect, smbInfoAllocation.getCapacity());
        assertEquals(free * bytesPerSect, smbInfoAllocation.getFree());
    }

    @Test
    @DisplayName("Test decode with large bytes per sector")

            // When: Decoding the value
            ndrShort.decode(mockBuffer);

            // Then: Should set the negative value directly (no masking on decode)
            verify(mockBuffer).dec_ndr_short();
            assertEquals(negativeValue, ndrShort.value);
        }

        @Test
        @DisplayName("Should decode large value correctly")
        void testDecodeLargeValue() throws NdrException {

        verify(objAttr.object_name).decode(mockDeferredNdrBuffer);
        verify(objAttr.security_quality_of_service).decode(mockDeferredNdrBuffer);
    }

    @Test
    void testLsarObjectAttributesDecodeNullReferents() throws NdrException {
        lsarpc.LsarObjectAttributes objAttr = new lsarpc.LsarObjectAttributes();

            assertEquals(FileSystemInformation.FS_SIZE_INFO, fileFsSizeInfo.getFileSystemInformationClass());
        }
    }

    @Nested
    @DisplayName("Decode Method Tests")
    class DecodeMethodTests {

        @Test
        @DisplayName("Should decode buffer with typical values correctly")
        void shouldDecodeBufferWithTypicalValues() throws SMBProtocolDecodingException {

        Encdec.enc_uint64le(currentDate.getTime(), buffer, 0);
        long decoded = Encdec.dec_uint64le(buffer, 0);

        // Then
        assertEquals(currentDate.getTime(), decoded, "Encoded and decoded time should match");
    }

    @Test
    @DisplayName("Should encode and decode UUIDs")
    void testUUIDOperations() {
        // Given

        byte[] dst = new byte[20];
        int writtenSize = range.encode(dst, 0);
        assertEquals(10, writtenSize, "Range size when not large should be 10");
        // create a new empty range and decode
        LockingAndXRange decoded = new LockingAndXRange(false);
        int decodedSize = decoded.decode(dst, 0, dst.length);
        assertEquals(10, decodedSize, "Decode should return size 10");
        assertEquals(99, decoded.getPid());

    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",