}

  public void testNewDataInput_normal() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    assertEquals(0x12345678, in.readInt());
    assertEquals(0x76543210, in.readInt());
    assertThrows(IllegalStateException.class, () -> in.readInt());
  }

  public void testNewDataInput_readFully() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);

    HashingInputStream in = new HashingInputStream(Hashing.md5(), buffer);

    byte[] buf = new byte[100];
    int numOfByteRead = in.read(buf, 0, buf.length);
    assertEquals(-1, in.read()); // additional read
    assertEquals(4, numOfByteRead);

    assertEquals(expectedHash, in.hash());
  }

  public void testHash_hashesCorrectlyForSkipping() throws Exception {

  /** Returns the time that this entry was last accessed, in ns. */
  @SuppressWarnings("GoodTime")
  long getAccessTime();

  /** Sets the entry access time in ns. */
  @SuppressWarnings("GoodTime") // b/122668874
  void setAccessTime(long time);

  /** Returns the next entry in the access queue. */
  ReferenceEntry<K, V> getNextInAccessQueue();

  /** Sets the next entry in the access queue. */

     * <ul>
     *   <li>If a {@code module-info.class} file is found in the root directory or in a
     *       {@code "META-INF/versions/{n}/"} subdirectory, builds a singleton map with
     *       the module name declared in that descriptor.</li>
     *   <li>Otherwise if an {@code "Automatic-Module-Name"} attribute is declared in the

   *
   * <p><b>Java 9+ users:</b> use {@code in#readAllBytes()} instead.
   *
   * @param in the input stream to read from
   * @return a byte array containing all the bytes from the stream
   * @throws IOException if an I/O error occurs
   */
  public static byte[] toByteArray(InputStream in) throws IOException {
    checkNotNull(in);
    return toByteArrayInternal(in, new ArrayDeque<byte[]>(TO_BYTE_ARRAY_DEQUE_SIZE), 0);
  }

   * exactly one entry for each distinct element in the multiset (thus it always has the same size
   * as the {@link #elementSet}). The order of the elements in the element set is unspecified.
   *
   * <p>The entry set is backed by the same data as the multiset, so any change to either is
   * immediately reflected in the other. However, multiset changes may or may not be reflected in

   *
   * <p>This escaper does not escape non-ASCII characters to their numeric character references
   * (NCR). Any non-ASCII characters appearing in the input will be preserved in the output.
   * Specifically "\r" (carriage return) is preserved in the output, which may result in it being
   * silently converted to "\n" when the XML is parsed.
   *
   * <p>This escaper does not treat surrogate pairs specially and does not perform Unicode

  }

  /** Returns an immutable multimap containing the given entries, in order. */
  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2) {
    return ImmutableListMultimap.of(k1, v1, k2, v2);
  }

  /**
   * Returns an immutable multimap containing the given entries, in the "key-grouped" insertion
   * order described in the <a href="#iteration">class documentation</a>.
   */

   * @throws IOException if an I/O error occurs while opening the stream
   * @since 15.0 (in 14.0 with return type {@link BufferedInputStream})
   */
  public InputStream openBufferedStream() throws IOException {
    InputStream in = openStream();
    return (in instanceof BufferedInputStream)
        ? (BufferedInputStream) in
        : new BufferedInputStream(in);
  }

  /**

  private final TestInputStream in;

  public TestReader(TestOption... options) throws IOException {
    this(new TestInputStream(new ByteArrayInputStream(new byte[10]), options));
  }

  public TestReader(TestInputStream in) {
    super(new InputStreamReader(checkNotNull(in), UTF_8));
    this.in = in;
  }

  public boolean closed() {
    return in.closed();
  }