Examples with Longs java8.lang.Longs used on opensource projects

Example 21 with Longs

use of java8.lang.Longs in project streamsupport by stefan-zobel.

the class LongAccumulatorTest method testFloatValue.

/**
 * floatValue returns current value.
 */
public void testFloatValue() {
    LongAccumulator acc = new LongAccumulator(Longs::max, 0L);
    assertEquals(0.0f, acc.floatValue());
    acc.accumulate(1);
    assertEquals(1.0f, acc.floatValue());
}

Example 22 with Longs

use of java8.lang.Longs in project streamsupport by stefan-zobel.

the class SplittableRandomTest method testBoundedLongs.

/**
 * Each of a parallel sized stream of bounded longs is within bounds
 */
public void testBoundedLongs() {
    AtomicInteger fails = new AtomicInteger(0);
    SplittableRandom r = new SplittableRandom();
    long size = 123L;
    for (long least = -86028121; least < MAX_LONG_BOUND; least += 1982451653L) {
        for (long bound = least + 2; bound > least && bound < MAX_LONG_BOUND; bound += Math.abs(bound * 7919)) {
            final long lo = least, hi = bound;
            r.longs(size, lo, hi).parallel().forEach(x -> {
                if (x < lo || x >= hi)
                    fails.getAndIncrement();
            });
        }
    }
    assertEquals(0, fails.get());
}

Example 23 with Longs

use of java8.lang.Longs in project streamsupport by stefan-zobel.

the class ThreadLocalRandom8Test method testUnsizedLongsCount.

/**
 * A parallel unsized stream of longs generates at least 100 values
 */
public void testUnsizedLongsCount() {
    LongAdder counter = new LongAdder();
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 100;
    r.longs().limit(size).parallel().forEach(x -> counter.increment());
    assertEquals(size, counter.sum());
}

Example 24 with Longs

use of java8.lang.Longs in project streamsupport by stefan-zobel.

the class ThreadLocalRandom8Test method testLongsCount.

/**
 * A parallel sized stream of longs generates the given number of values
 */
public void testLongsCount() {
    LongAdder counter = new LongAdder();
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 0;
    for (int reps = 0; reps < REPS; ++reps) {
        counter.reset();
        r.longs(size).parallel().forEach(x -> counter.increment());
        assertEquals(size, counter.sum());
        size += 524959;
    }
}

Example 25 with Longs

use of java8.lang.Longs in project streamsupport by stefan-zobel.

the class ThreadLocalRandom8Test method testUnsizedLongsCountSeq.

/**
 * A sequential unsized stream of longs generates at least 100 values
 */
public void testUnsizedLongsCountSeq() {
    LongAdder counter = new LongAdder();
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 100;
    r.longs().limit(size).forEach(x -> counter.increment());
    assertEquals(size, counter.sum());
}