assertEquals(adminSidString, sid.toString());
    }

    /**
     * Test converting a SID to a byte array.
     */
    @Test
    void testToByteArray() {
        SID sid = new SID(adminSidBytes, 0);
        assertArrayEquals(adminSidBytes, sid.toByteArray());
    }

    /**
     * Test the equals method.
     *

    File asciiFile = getTestFile("ascii.txt");
    ByteSource byteSource = Files.asByteSource(asciiFile);
    assertThat(byteSource.asCharSource(UTF_8).asByteSource(UTF_8)).isSameInstanceAs(byteSource);
  }

  public void testToByteArray() throws IOException {
    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");
    assertThat(Files.toByteArray(asciiFile)).isEqualTo(ASCII.getBytes(US_ASCII));

    assertEquals(4, baos.size());
    assertThat(baos.toByteArray()).isEqualTo(new byte[] {0x12, 0x34, 0x56, 0x78});
  }

  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);
  }

    assertEquals(4, baos.size());
    assertThat(baos.toByteArray()).isEqualTo(new byte[] {0x12, 0x34, 0x56, 0x78});
  }

  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);
  }

    Arrays.fill(arrays, sharedArray);

    try {
      Ints.concat(arrays);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  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});

    assertWithMessage(
            "Expected: %s, but got: %s", Arrays.toString(expected), Arrays.toString(actual))
        .that(Arrays.equals(expected, actual))
        .isTrue();
  }

  public void testToByteArray() {
    assertByteArrayEquals(
        new byte[] {0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19},
        Longs.toByteArray(0x1213141516171819L));
    assertByteArrayEquals(
        new byte[] {

    try {
      Shorts.concat(arrays);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  @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});
  }

    Arrays.fill(arrays, sharedArray);

    try {
      Ints.concat(arrays);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  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});