ByteArrayDataOutput out = ByteStreams.newDataOutput();
    out.writeInt(0x12345678);
    out.writeInt(0x76543210);
    assertThat(out.toByteArray()).isEqualTo(bytes);
  }

  public void testNewDataOutput_sized() {
    ByteArrayDataOutput out = ByteStreams.newDataOutput(4);
    out.writeInt(0x12345678);
    out.writeInt(0x76543210);
    assertThat(out.toByteArray()).isEqualTo(bytes);
  }

    ByteArrayDataOutput out = ByteStreams.newDataOutput();
    out.writeInt(0x12345678);
    out.writeInt(0x76543210);
    assertThat(out.toByteArray()).isEqualTo(bytes);
  }

  public void testNewDataOutput_sized() {
    ByteArrayDataOutput out = ByteStreams.newDataOutput(4);
    out.writeInt(0x12345678);
    out.writeInt(0x76543210);
    assertThat(out.toByteArray()).isEqualTo(bytes);
  }

    out.writeByte(100);
    out.writeByte(-100);
    out.writeByte((byte) 200);
    out.writeChar('a');
    out.writeShort((short) -30000);
    out.writeShort((short) 50000);
    out.writeInt(0xCAFEBABE);
    out.writeLong(0xDEADBEEFCAFEBABEL);
    out.writeUTF("Herby Derby");
    out.writeFloat(Float.intBitsToFloat(0xCAFEBABE));
    out.writeDouble(Double.longBitsToDouble(0xDEADBEEFCAFEBABEL));

    byte[] data = baos.toByteArray();

    out.writeByte(100);
    out.writeByte(-100);
    out.writeByte((byte) 200);
    out.writeChar('a');
    out.writeShort((short) -30000);
    out.writeShort((short) 50000);
    out.writeInt(0xCAFEBABE);
    out.writeLong(0xDEADBEEFCAFEBABEL);
    out.writeUTF("Herby Derby");
    out.writeFloat(Float.intBitsToFloat(0xCAFEBABE));
    out.writeDouble(Double.longBitsToDouble(0xDEADBEEFCAFEBABEL));

    byte[] data = baos.toByteArray();

    out.writeByte(100);
    out.writeByte(-100);
    out.writeByte((byte) 200);
    out.writeChar('a');
    out.writeShort((short) -30000);
    out.writeShort((short) 50000);
    out.writeInt(0xCAFEBABE);
    out.writeLong(0xDEADBEEFCAFEBABEL);
    out.writeUTF("Herby Derby");
    out.writeFloat(Float.intBitsToFloat(0xCAFEBABE));
    out.writeDouble(Double.longBitsToDouble(0xDEADBEEFCAFEBABEL));
  }

            // Multiple dynamic table size updates!
            writeInt(smallestHeaderTableSizeSetting, PREFIX_5_BITS, 0x20)
          }
          emitDynamicTableSizeUpdate = false
          smallestHeaderTableSizeSetting = Integer.MAX_VALUE
          writeInt(maxDynamicTableByteCount, PREFIX_5_BITS, 0x20)
        }

        for (i in 0 until headerBlock.size) {

      try {
        output.writeFloat(v);
      } catch (IOException impossible) {
        throw new AssertionError(impossible);
      }
    }

    @Override
    public void writeInt(int v) {
      try {
        output.writeInt(v);
      } catch (IOException impossible) {
        throw new AssertionError(impossible);
      }
    }

    @Override
    public void writeLong(long v) {
      try {

  fun allocate(count: Int): List<InetAddress> {
    val from = nextAddress
    nextAddress += count
    return (from until nextAddress)
      .map {
        return@map InetAddress.getByAddress(
          Buffer().writeInt(it.toInt()).readByteArray(),
        )
      }
  }

  /** Allocates and returns `count` fake IPv6 addresses like [::ff00:64, ::ff00:65].  */
  fun allocateIpv6(count: Int): List<InetAddress> {

		// b.r < b.w => buffer is not empty
		m, err := b.writeBuf(w)
		n += m
		if err != nil {
			return n, err
		}
		b.fill() // buffer is empty
	}

	if b.err == io.EOF {
		b.err = nil
	}

	return n, b.readErr()
}

var errNegativeWrite = errors.New("bufio: writer returned negative count from Write")

// writeBuf writes the [Reader]'s buffer to the writer.

  @GwtIncompatible
  @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();
    stream.writeInt(keySet().size());
    for (K key : keySet()) {
      stream.writeObject(key);
    }
    stream.writeInt(size());
    for (Entry<K, V> entry : entries()) {
      stream.writeObject(entry.getKey());
      stream.writeObject(entry.getValue());
    }
  }