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

Example 31 with Stream

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

the class SplittableRandomTest method testUnsizedDoublesCountSeq.

/**
 * A sequential unsized stream of doubles generates at least 100 values
 */
public void testUnsizedDoublesCountSeq() {
    final LongAdder counter = new LongAdder();
    SplittableRandom r = new SplittableRandom();
    long size = 100;
    r.doubles().limit(size).forEach(new DoubleConsumer() {

        @Override
        public void accept(double x) {
            counter.increment();
        }
    });
    assertEquals(counter.sum(), size);
}

Example 32 with Stream

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

the class SplittableRandomTest method testIntsCount.

/**
 * A parallel sized stream of ints generates the given number of values
 */
public void testIntsCount() {
    final LongAdder counter = new LongAdder();
    SplittableRandom r = new SplittableRandom();
    long size = 0;
    for (int reps = 0; reps < REPS; ++reps) {
        counter.reset();
        r.ints(size).parallel().forEach(new IntConsumer() {

            @Override
            public void accept(int x) {
                counter.increment();
            }
        });
        assertEquals(counter.sum(), size);
        size += 524959;
    }
}

Example 33 with Stream

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

the class SplittableRandomTest method testUnsizedLongsCountSeq.

/**
 * A sequential unsized stream of longs generates at least 100 values
 */
public void testUnsizedLongsCountSeq() {
    final LongAdder counter = new LongAdder();
    SplittableRandom r = new SplittableRandom();
    long size = 100;
    r.longs().limit(size).forEach(new LongConsumer() {

        @Override
        public void accept(long x) {
            counter.increment();
        }
    });
    assertEquals(counter.sum(), size);
}

Example 34 with Stream

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

the class SplittableRandomTest method testUnsizedDoublesCount.

/**
 * A parallel unsized stream of doubles generates at least 100 values
 */
public void testUnsizedDoublesCount() {
    final LongAdder counter = new LongAdder();
    SplittableRandom r = new SplittableRandom();
    long size = 100;
    r.doubles().limit(size).parallel().forEach(new DoubleConsumer() {

        @Override
        public void accept(double x) {
            counter.increment();
        }
    });
    assertEquals(counter.sum(), size);
}

Example 35 with Stream

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

the class SplittableRandomTest method testBoundedInts.

/**
 * Each of a parallel sized stream of bounded ints is within bounds
 */
public void testBoundedInts() {
    final AtomicInteger fails = new AtomicInteger(0);
    SplittableRandom r = new SplittableRandom();
    long size = 12345L;
    for (int least = -15485867; least < MAX_INT_BOUND; least += 524959) {
        for (int bound = least + 2; bound > least && bound < MAX_INT_BOUND; bound += 67867967) {
            final int lo = least, hi = bound;
            r.ints(size, lo, hi).parallel().forEach(new IntConsumer() {

                @Override
                public void accept(int x) {
                    if (x < lo || x >= hi)
                        fails.getAndIncrement();
                }
            });
        }
    }
    assertEquals(fails.get(), 0);
}