out.reset();
  }

  public void testReset() throws Exception {
    byte[] data = newPreFilledByteArray(100);
    FileBackedOutputStream out = new FileBackedOutputStream(Integer.MAX_VALUE);
    ByteSource source = out.asByteSource();

    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.reset();
    assertTrue(Arrays.equals(new byte[0], source.read()));

    assertTrue(MinMaxPriorityQueue.isEvenLevel((1 << 31) - 2));
    assertTrue(MinMaxPriorityQueue.isEvenLevel(Integer.MAX_VALUE - 1));
    assertThrows(IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel((1 << 31) - 1));
    assertThrows(
        IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel(Integer.MAX_VALUE));
    assertThrows(IllegalStateException.class, () -> MinMaxPriorityQueue.isEvenLevel(1 << 31));
    assertThrows(

          // We move to the next non-repeated element.
          permutations = IntMath.saturatedMultiply(permutations, IntMath.binomial(n, r));
          r = 0;
          if (permutations == Integer.MAX_VALUE) {
            return Integer.MAX_VALUE;
          }
        }
        n++;
        r++;
      }
      return IntMath.saturatedMultiply(permutations, IntMath.binomial(n, r));
    }

    @Override

      checkMaximumSize(4, 8, maxSize);
      checkMaximumSize(8, 8, maxSize);
    }

    checkMaximumSize(1, 8, Long.MAX_VALUE);
    checkMaximumSize(2, 8, Long.MAX_VALUE);
    checkMaximumSize(4, 8, Long.MAX_VALUE);
    checkMaximumSize(8, 8, Long.MAX_VALUE);

    // vary initial capacity wrt maximumSize

    for (int capacity = 0; capacity < 8; capacity++) {
      checkMaximumSize(1, capacity, 4);

      checkMaximumSize(4, 8, maxSize);
      checkMaximumSize(8, 8, maxSize);
    }

    checkMaximumSize(1, 8, Long.MAX_VALUE);
    checkMaximumSize(2, 8, Long.MAX_VALUE);
    checkMaximumSize(4, 8, Long.MAX_VALUE);
    checkMaximumSize(8, 8, Long.MAX_VALUE);

    // vary initial capacity wrt maximumSize

    for (int capacity = 0; capacity < 8; capacity++) {
      checkMaximumSize(1, capacity, 4);

 * not used in this API). Since the count of an element is represented as an {@code int}, a multiset
 * may never contain more than {@link Integer#MAX_VALUE} occurrences of any one element.
 *
 * <p>{@code Multiset} refines the specifications of several methods from {@code Collection}. It
 * also defines an additional query operation, {@link #count}, which returns the count of an

    checkPositionIndexes(fromIndex, toIndex, array.length);
    for (int i = fromIndex; i < toIndex; i++) {
      array[i] ^= Integer.MAX_VALUE;
    }
    Arrays.sort(array, fromIndex, toIndex);
    for (int i = fromIndex; i < toIndex; i++) {
      array[i] ^= Integer.MAX_VALUE;
    }
  }

  /**
   * Returns dividend / divisor, where the dividend and divisor are treated as unsigned 32-bit
   * quantities.

    checkPositionIndexes(fromIndex, toIndex, array.length);
    for (int i = fromIndex; i < toIndex; i++) {
      array[i] ^= Integer.MAX_VALUE;
    }
    Arrays.sort(array, fromIndex, toIndex);
    for (int i = fromIndex; i < toIndex; i++) {
      array[i] ^= Integer.MAX_VALUE;
    }
  }

  /**
   * Returns dividend / divisor, where the dividend and divisor are treated as unsigned 32-bit
   * quantities.

        reader = new ESSourceReader(client, settings, indexName);
        reader.setScrollSize(1000);
        reader.addSort(SortBuilders.fieldSort("field2").order(SortOrder.DESC));
        count = 0;
        prev = Integer.MAX_VALUE;
        while ((source = reader.read()) != null) {
            int current = Integer.parseInt(source.get("field2").toString());
            assertTrue(prev > current);
            prev = current;
            count++;

  private val taskRunner = taskFaker.taskRunner
  private lateinit var cache: DiskLruCache
  private val toClose = ArrayDeque<DiskLruCache>()

  private fun createNewCache() {
    createNewCacheWithSize(Int.MAX_VALUE)
  }

  private fun createNewCacheWithSize(maxSize: Int) {
    cache =
      DiskLruCache(filesystem, cacheDir, appVersion, 2, maxSize.toLong(), taskRunner).also {
        toClose.add(it)
      }