}
  }

  /** Encodes the specified byte array, and returns the encoded {@code String}. */
  public String encode(byte[] bytes) {
    return encode(bytes, 0, bytes.length);
  }

  /**
   * Encodes the specified range of the specified byte array, and returns the encoded {@code
   * String}.
   */
  public final String encode(byte[] bytes, int off, int len) {

      out.write(b);
    }

    @Override
    protected void update(byte[] b, int off, int len) {
      out.write(b, off, len);
    }

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

    void assertBytes(byte[] expected) {
      assertArrayEquals(expected, bytes());
    }

    @Override
    public HashCode hash() {
      return HashCode.fromBytesNoCopy(bytes());
    }

  }

  static TestSuite suiteForBytes(
      ByteSourceFactory factory, byte[] bytes, String name, String desc, boolean slice) {
    TestSuite suite = new TestSuite(name + " [" + desc + "]");
    for (Method method : testMethods) {
      suite.addTest(new ByteSourceTester(factory, bytes, name, desc, method));
    }

    if (slice && bytes.length > 0) {
      // test a random slice() of the ByteSource

      }
      remaining -= read;
    }

    // bytes is now full
    int b = in.read();
    if (b == -1) {
      return bytes;
    }

    // the stream was longer, so read the rest normally
    Queue<byte[]> bufs = new ArrayDeque<>(TO_BYTE_ARRAY_DEQUE_SIZE + 2);
    bufs.add(bytes);
    bufs.add(new byte[] {(byte) b});
    return toByteArrayInternal(in, bufs, bytes.length + 1);
  }

    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[bytes.length];
    in.readFully(actual);
    assertThat(actual).isEqualTo(bytes);
  }

  public void testNewDataInput_readFullyAndThenSome() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[bytes.length * 2];
    IllegalStateException ex =

    private byte[] bytes;

    public AppendableByteSource(byte[] initialBytes) {
      this.bytes = initialBytes.clone();
    }

    @Override
    public InputStream openStream() {
      return new In();
    }

    public void append(byte[] b) {
      byte[] newBytes = Arrays.copyOf(bytes, bytes.length + b.length);

      return false;
    }

    byte[] bytes = ip.getAddress();

    if ((bytes[8] | (byte) 0x03) != (byte) 0x03) {

      // Verify that high byte of the 64 bit identifier is zero, modulo
      // the U/L and G bits, with which we are not concerned.
      return false;
    }

    return (bytes[9] == (byte) 0x00) && (bytes[10] == (byte) 0x5e) && (bytes[11] == (byte) 0xfe);
  }

  /**

    assertFalse(sink.wasStreamClosed());

    out.write(new byte[] {1, 2, 3, 4});
    out.close();

    assertTrue(sink.wasStreamClosed());
    assertArrayEquals(new byte[] {1, 2, 3, 4}, sink.getBytes());
  }

  public void testWrite_bytes() throws IOException {
    assertArrayEquals(new byte[0], sink.getBytes());
    sink.write(bytes);

    assertTrue(sink.wasStreamOpened() && sink.wasStreamClosed());

  public void testBytes() {
    Sink sink = new Sink(4); // byte order insignificant here
    byte[] expected = {1, 2, 3, 4, 5, 6, 7, 8};
    sink.putByte((byte) 1);
    sink.putBytes(new byte[] {2, 3, 4, 5, 6});
    sink.putByte((byte) 7);
    sink.putBytes(new byte[] {});
    sink.putBytes(new byte[] {8});
    HashCode unused = sink.hash();
    sink.assertInvariants(8);
    sink.assertBytes(expected);

    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[bytes.length];
    in.readFully(actual);
    assertThat(actual).isEqualTo(bytes);
  }

  public void testNewDataInput_readFullyAndThenSome() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[bytes.length * 2];
    IllegalStateException ex =