byte[] data = {0, 0, 0, 1, (byte) 0xFF, (byte) 0xFF, 0x12, 0x34};
    ByteArrayDataInput in = ByteStreams.newDataInput(data);
    assertEquals(0, in.readUnsignedShort());
    assertEquals(1, in.readUnsignedShort());
    assertEquals(65535, in.readUnsignedShort());
    assertEquals(0x1234, in.readUnsignedShort());
  }

  public void testNewDataInput_readLong() {
    byte[] data = {0x12, 0x34, 0x56, 0x78, 0x76, 0x54, 0x32, 0x10};

    byte[] data = {0, 0, 0, 1, (byte) 0xFF, (byte) 0xFF, 0x12, 0x34};
    ByteArrayDataInput in = ByteStreams.newDataInput(data);
    assertEquals(0, in.readUnsignedShort());
    assertEquals(1, in.readUnsignedShort());
    assertEquals(65535, in.readUnsignedShort());
    assertEquals(0x1234, in.readUnsignedShort());
  }

  public void testNewDataInput_readLong() {
    byte[] data = {0x12, 0x34, 0x56, 0x78, 0x76, 0x54, 0x32, 0x10};

   * Returns a big-endian representation of {@code value} in a 2-element byte array; equivalent to
   * {@code ByteBuffer.allocate(2).putShort(value).array()}. For example, the input value {@code
   * (short) 0x1234} would yield the byte array {@code {0x12, 0x34}}.
   *
   * <p>If you need to convert and concatenate several values (possibly even of different types),
   * use a shared {@link java.nio.ByteBuffer} instance, or use {@link

public class ContentOutputStreamTest {

    @Test
    public void inMemory() throws IOException {
        ContentOutputStream cos = new ContentOutputStream(10, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4 });
        assertFalse(cos.done);
        assertTrue(cos.isInMemory());
        cos.close();
        assertFalse(cos.done);
    }

    @Test
    public void inFile() throws IOException {

  }

  public void testConcat() throws IOException {
    ByteSource b1 = ByteSource.wrap(new byte[] {0, 1, 2, 3});
    ByteSource b2 = ByteSource.wrap(new byte[0]);
    ByteSource b3 = ByteSource.wrap(new byte[] {4, 5});

    byte[] expected = {0, 1, 2, 3, 4, 5};

    assertArrayEquals(expected, ByteSource.concat(ImmutableList.of(b1, b2, b3)).read());

    Set<Integer> keySet = cache.asMap().keySet();
    assertThat(keySet).isEmpty();

    // add 0, 1, 2, 3, 4
    getAll(cache, asList(0, 1, 2, 3, 4));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(0, 1, 2, 3, 4);

    // invalidate all
    cache.invalidateAll();
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).isEmpty();

    Set<Integer> keySet = cache.asMap().keySet();
    assertThat(keySet).isEmpty();

    // add 0, 1, 2, 3, 4
    getAll(cache, asList(0, 1, 2, 3, 4));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(0, 1, 2, 3, 4);

    // invalidate all
    cache.invalidateAll();
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).isEmpty();

    testRotate(new byte[] {1, 2, 3, 4, 5}, 1, new byte[] {5, 1, 2, 3, 4});
    testRotate(new byte[] {1, 2, 3, 4, 5}, 3, new byte[] {3, 4, 5, 1, 2});
    testRotate(new byte[] {1, 2, 3, 4, 5}, 4, new byte[] {2, 3, 4, 5, 1});
    testRotate(new byte[] {1, 2, 3, 4, 5}, 6, new byte[] {5, 1, 2, 3, 4});
  }

  public void testRotateIndexed() {
    testRotate(new byte[] {}, 0, 0, 0, new byte[] {});

    testRotate(new byte[] {1, 2, 3, 4, 5}, 1, new byte[] {5, 1, 2, 3, 4});
    testRotate(new byte[] {1, 2, 3, 4, 5}, 3, new byte[] {3, 4, 5, 1, 2});
    testRotate(new byte[] {1, 2, 3, 4, 5}, 4, new byte[] {2, 3, 4, 5, 1});
    testRotate(new byte[] {1, 2, 3, 4, 5}, 6, new byte[] {5, 1, 2, 3, 4});
  }

  public void testRotateIndexed() {
    testRotate(new byte[] {}, 0, 0, 0, new byte[] {});

    testRotate(new char[] {'1', '2', '3', '4', '5'}, 1, new char[] {'5', '1', '2', '3', '4'});
    testRotate(new char[] {'1', '2', '3', '4', '5'}, 3, new char[] {'3', '4', '5', '1', '2'});
    testRotate(new char[] {'1', '2', '3', '4', '5'}, 4, new char[] {'2', '3', '4', '5', '1'});
    testRotate(new char[] {'1', '2', '3', '4', '5'}, 6, new char[] {'5', '1', '2', '3', '4'});
  }

  public void testRotateIndexed() {