}

  private static final byte[] PRE_FILLED_100 = newPreFilledByteArray(100);

  public void testToByteArray() throws IOException {
    InputStream in = new ByteArrayInputStream(PRE_FILLED_100);
    byte[] b = ByteStreams.toByteArray(in);
    assertThat(b).isEqualTo(PRE_FILLED_100);
  }

  public void testToByteArray_emptyStream() throws IOException {
    InputStream in = newTestStream(0);

  }

  private static final byte[] PRE_FILLED_100 = newPreFilledByteArray(100);

  public void testToByteArray() throws IOException {
    InputStream in = new ByteArrayInputStream(PRE_FILLED_100);
    byte[] b = ByteStreams.toByteArray(in);
    assertThat(b).isEqualTo(PRE_FILLED_100);
  }

  public void testToByteArray_emptyStream() throws IOException {
    InputStream in = newTestStream(0);

    assertEquals(I18N, Resources.toString(resource, Charsets.UTF_8));
    assertThat(Resources.toString(resource, Charsets.US_ASCII)).isNotEqualTo(I18N);
  }

  public void testToByteArray() throws IOException {
    URL resource = getClass().getResource("testdata/i18n.txt");
    assertThat(Resources.toByteArray(resource)).isEqualTo(I18N.getBytes(Charsets.UTF_8));
  }

    assertEquals(I18N, Resources.toString(resource, Charsets.UTF_8));
    assertThat(Resources.toString(resource, Charsets.US_ASCII)).isNotEqualTo(I18N);
  }

  public void testToByteArray() throws IOException {
    URL resource = getClass().getResource("testdata/i18n.txt");
    assertThat(Resources.toByteArray(resource)).isEqualTo(I18N.getBytes(Charsets.UTF_8));
  }

    ByteSource byteSource = Files.asByteSource(asciiFile);
    assertSame(byteSource, byteSource.asCharSource(Charsets.UTF_8).asByteSource(Charsets.UTF_8));
  }

  public void testToByteArray() throws IOException {
    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");
    assertTrue(Arrays.equals(ASCII.getBytes(Charsets.US_ASCII), Files.toByteArray(asciiFile)));

    assertThat(Shorts.concat(ARRAY1, ARRAY234))
        .isEqualTo(new short[] {(short) 1, (short) 2, (short) 3, (short) 4});
  }

  @GwtIncompatible // Shorts.toByteArray
  public void testToByteArray() {
    assertThat(Shorts.toByteArray((short) 0x2345)).isEqualTo(new byte[] {0x23, 0x45});
    assertThat(Shorts.toByteArray((short) 0xFEDC)).isEqualTo(new byte[] {(byte) 0xFE, (byte) 0xDC});
  }

        .isEqualTo(new int[] {(int) 1, (int) 1, (int) 1});
    assertThat(Ints.concat(ARRAY1, ARRAY234))
        .isEqualTo(new int[] {(int) 1, (int) 2, (int) 3, (int) 4});
  }

  public void testToByteArray() {
    assertThat(Ints.toByteArray(0x12131415)).isEqualTo(new byte[] {0x12, 0x13, 0x14, 0x15});
    assertThat(Ints.toByteArray(0xFFEEDDCC))
        .isEqualTo(new byte[] {(byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC});

    ByteSource byteSource = Files.asByteSource(asciiFile);
    assertSame(byteSource, byteSource.asCharSource(Charsets.UTF_8).asByteSource(Charsets.UTF_8));
  }

  public void testToByteArray() throws IOException {
    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");
    assertTrue(Arrays.equals(ASCII.getBytes(Charsets.US_ASCII), Files.toByteArray(asciiFile)));

    assertThat(Shorts.concat(ARRAY1, ARRAY234))
        .isEqualTo(new short[] {(short) 1, (short) 2, (short) 3, (short) 4});
  }

  @GwtIncompatible // Shorts.toByteArray
  public void testToByteArray() {
    assertThat(Shorts.toByteArray((short) 0x2345)).isEqualTo(new byte[] {0x23, 0x45});
    assertThat(Shorts.toByteArray((short) 0xFEDC)).isEqualTo(new byte[] {(byte) 0xFE, (byte) 0xDC});
  }

        .isEqualTo(new int[] {(int) 1, (int) 1, (int) 1});
    assertThat(Ints.concat(ARRAY1, ARRAY234))
        .isEqualTo(new int[] {(int) 1, (int) 2, (int) 3, (int) 4});
  }

  public void testToByteArray() {
    assertThat(Ints.toByteArray(0x12131415)).isEqualTo(new byte[] {0x12, 0x13, 0x14, 0x15});
    assertThat(Ints.toByteArray(0xFFEEDDCC))
        .isEqualTo(new byte[] {(byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC});