this.options = ImmutableSet.copyOf(options);
  }

  @Override
  public boolean wasStreamOpened() {
    return inputStreamOpened;
  }

  @Override
  public boolean wasStreamClosed() {
    return inputStreamClosed;
  }

  @Override
  public InputStream openStream() throws IOException {
    inputStreamOpened = true;
    return new RandomAmountInputStream(new In(), new Random());
  }

    this.options = ImmutableSet.copyOf(options);
  }

  @Override
  public boolean wasStreamOpened() {
    return inputStreamOpened;
  }

  @Override
  public boolean wasStreamClosed() {
    return inputStreamClosed;
  }

  @Override
  public InputStream openStream() throws IOException {
    inputStreamOpened = true;
    return new RandomAmountInputStream(new In(), new Random());
  }

 */
public interface TestStreamSupplier {

  /** Returns whether or not a new stream was opened. */
  boolean wasStreamOpened();

  /** Returns whether or not an open stream was closed. */
  boolean wasStreamClosed();

 */
public interface TestStreamSupplier {

  /** Returns whether or not a new stream was opened. */
  boolean wasStreamOpened();

  /** Returns whether or not an open stream was closed. */
  boolean wasStreamClosed();

  }

  byte[] getBytes() {
    return bytes.toByteArray();
  }

  @Override
  public boolean wasStreamOpened() {
    return outputStreamOpened;
  }

  @Override
  public boolean wasStreamClosed() {
    return outputStreamClosed;
  }

  @Override
  public OutputStream openStream() throws IOException {
    outputStreamOpened = true;
    bytes.reset(); // truncate
    return new Out();
  }