derWriter.writeUtf8("a".repeat(201))
    }

    assertThat(buffer.readByteString(3)).isEqualTo("1e81c9".decodeHex())
    assertThat(buffer.readUtf8()).isEqualTo("a".repeat(201))
  }

  @Test fun `decode primitive bit string`() {
    val buffer =
      Buffer()
        .write("0307040A3B5F291CD0".decodeHex())

    val derReader = DerReader(buffer)

    derReader.read("test") { header ->

	// Confirm that when Reader panics, the empty buffer remains empty
	var buf2 Buffer
	defer func() {
		recover()
		check(t, "TestReadFromPanicReader (2)", &buf2, "")
	}()
	buf2.ReadFrom(panicReader{panic: true})
}

func TestReadFromNegativeReader(t *testing.T) {
	var b Buffer
	defer func() {
		switch err := recover().(type) {
		case nil:
			t.Fatal("bytes.Buffer.ReadFrom didn't panic")
		case error:

   * to buffer chunks; typically by using a buffered sink with this sink.
   */
  private inner class ChunkedSink : Sink {
    private val timeout = ForwardingTimeout(sink.timeout())
    private var closed: Boolean = false

    override fun timeout(): Timeout = timeout

    override fun write(
      source: Buffer,
      byteCount: Long,
    ) {

            e.name = readString( buffer, bufferIndex, 16, false );
            bufferIndex += 16;
            e.versionMajor = (int)( buffer[bufferIndex++] & 0xFF );
            e.versionMinor = (int)( buffer[bufferIndex++] & 0xFF );
            e.type = readInt4( buffer, bufferIndex );
            bufferIndex += 4;
            int off = readInt4( buffer, bufferIndex );
            bufferIndex += 4;

    protected int readParameterWordsWireFormat ( byte[] buffer, int bufferIndex ) {
        int start = bufferIndex;

        this.oplockLevel = buffer[ bufferIndex++ ];
        this.fid = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.createAction = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.creationTime = SMBUtil.readTime(buffer, bufferIndex);
        bufferIndex += 8;

     * @param buffer
     *            バイトバッファ。{@literal null}であってはいけません
     * @return 読み込んだバイト数
     */
    public static int read(final FileChannel channel, final ByteBuffer buffer) {
        assertArgumentNotNull("channel", channel);
        assertArgumentNotNull("buffer", buffer);

        try {
            return channel.read(buffer);
        } catch (final IOException e) {

        return 0;
    }


    @Override
    protected int readSetupWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override
    protected int readParametersWireFormat ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        int elemStart = start;

    int readBytesWireFormat( byte[] buffer, int bufferIndex ) {
        int start = bufferIndex;

        if (extendedSecurity) {
            System.arraycopy(buffer, bufferIndex, blob, 0, blob.length);
            bufferIndex += blob.length;
        }
        nativeOs = readString( buffer, bufferIndex );
        bufferIndex += stringWireLength( nativeOs, bufferIndex );

     */
    @Override
    public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;
        this.replaceIfExists = buffer[ bufferIndex ] != 0;
        bufferIndex += 8;
        bufferIndex += 8;

        int nameLen = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        byte[] nameBytes = new byte[nameLen];

    @Override
    protected int readBytesWireFormat ( byte[] buffer, int bufferIndex ) throws SMBProtocolDecodingException {
        int start = bufferIndex;
        int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if ( structureSize != 16 ) {
            throw new SMBProtocolDecodingException("Structure size is not 16");
        }

        this.shareType = buffer[ bufferIndex + 2 ];
        bufferIndex += 4;