assertEquals(0, dst[1]);

        // Verify descriptor (WrLehDO\0B16BBDz\0 in ASCII)
        String expectedDescr = "WrLehDO\u0000B16BBDz\u0000";
        byte[] expectedDescrBytes = expectedDescr.getBytes("ASCII");
        byte[] actualDescrBytes = new byte[expectedDescrBytes.length];
        System.arraycopy(dst, 2, actualDescrBytes, 0, expectedDescrBytes.length);
        assertArrayEquals(expectedDescrBytes, actualDescrBytes);

package jstream

import (
	"unicode/utf8"
)

type scratch struct {
	data []byte
	fill int
}

// reset scratch buffer
func (s *scratch) reset() { s.fill = 0 }

// bytes returns the written contents of scratch buffer
func (s *scratch) bytes() []byte { return s.data[0:s.fill] }

// grow scratch buffer
func (s *scratch) grow() {
	ndata := make([]byte, cap(s.data)*2)
	copy(ndata, s.data)
	s.data = ndata
}

        byte[] src = new byte[10];
        int srcIndex = 0;

        // Simulate groupName = false, nodeType = 0
        src[srcIndex] = (byte) 0x00;
        src[srcIndex + 1] = (byte) 0x00;

        // Simulate address = 0.0.0.0
        src[srcIndex + 2] = (byte) 0x00;
        src[srcIndex + 3] = (byte) 0x00;
        src[srcIndex + 4] = (byte) 0x00;
        src[srcIndex + 5] = (byte) 0x00;

    assertThat(Ints.toByteArray(0xFFEEDDCC))
        .isEqualTo(new byte[] {(byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC});
  }

  public void testFromByteArray() {
    assertThat(Ints.fromByteArray(new byte[] {0x12, 0x13, 0x14, 0x15, 0x33})).isEqualTo(0x12131415);
    assertThat(Ints.fromByteArray(new byte[] {(byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC}))

    @Override
    int writeSetupWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int writeParametersWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int readSetupWireFormat(final byte[] buffer, final int bufferIndex, final int len) {

  /**
   * @deprecated This method is dangerous as it discards the high byte of every character. For
   *     UTF-8, use {@code write(s.getBytes(StandardCharsets.UTF_8))}.
   */
  @Deprecated
  @Override
  void writeBytes(String s);

  /** Returns the contents that have been written to this instance, as a byte array. */
  byte[] toByteArray();

                final Type3Message type3 = new Type3Message(src);
                byte[] lmResponse = type3.getLMResponse();
                if (lmResponse == null) {
                    lmResponse = new byte[0];
                }
                byte[] ntResponse = type3.getNTResponse();
                if (ntResponse == null) {
                    ntResponse = new byte[0];
                }

    int b = in.read();
    assertEquals('y', b);

    verify(hasher).putByte((byte) 'y');
    verify(hashFunction).newHasher();
    verifyNoMoreInteractions(hashFunction, hasher);
  }

  public void testRead_putByteArray() throws Exception {
    HashingInputStream in = new HashingInputStream(hashFunction, buffer);

    byte[] buf = new byte[4];
    int numOfByteRead = in.read(buf, 0, buf.length);
    assertEquals(4, numOfByteRead);

        this.maxSetupCount = 0;
    }

    @Override
    protected int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = this.getSubCommand();
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        return 2;
    }

    @Override
    protected int writeParametersWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

    }

    @ParameterizedTest
    @DisplayName("Test reserved bytes are properly skipped")
    @ValueSource(bytes = { 0x00, 0x01, (byte) 0xFF, 0x7F, (byte) 0x80 })
    void testReservedBytesSkipped(byte reservedValue) throws Exception {
        byte[] buffer = new byte[100];
        int bufferIndex = 0;

        // Set reserved bytes to non-zero values (should be ignored)
        buffer[bufferIndex] = reservedValue;