Examples with Stream java8.util.stream.Stream used on opensource projects

Example 61 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class ThreadLocalRandom8Test method testDoublesCount.

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

Example 62 with Stream

use of java8.util.stream.Stream 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 63 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class ThreadLocalRandom8Test method testUnsizedIntsCount.

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

Example 64 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class ThreadLocalRandom8Test method testBoundedDoubles.

/**
 * Each of a parallel sized stream of bounded doubles is within bounds
 */
public void testBoundedDoubles() {
    AtomicInteger fails = new AtomicInteger(0);
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 456;
    for (double least = 0.00011; least < 1.0e20; least *= 9) {
        for (double bound = least * 1.0011; bound < 1.0e20; bound *= 17) {
            final double lo = least, hi = bound;
            r.doubles(size, lo, hi).parallel().forEach(x -> {
                if (x < lo || x >= hi)
                    fails.getAndIncrement();
            });
        }
    }
    assertEquals(0, fails.get());
}

Example 65 with Stream

use of java8.util.stream.Stream 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());
}