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

Example 1 with Doubles

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

the class DoubleAccumulatorTest method testFloatValue.

/**
 * floatValue returns current value.
 */
public void testFloatValue() {
    DoubleAccumulator acc = new DoubleAccumulator(Doubles::max, 0.0);
    assertEquals(0.0f, acc.floatValue());
    acc.accumulate(1.0);
    assertEquals(1.0f, acc.floatValue());
}

Example 2 with Doubles

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

the class DoubleAccumulatorTest method testGetThenReset.

/**
 * getThenReset() returns current value; subsequent get() returns zero
 */
public void testGetThenReset() {
    DoubleAccumulator acc = new DoubleAccumulator(Doubles::max, 0.0);
    acc.accumulate(2.0);
    assertEquals(2.0, acc.get());
    assertEquals(2.0, acc.getThenReset());
    assertEquals(0.0, acc.get());
}

Example 3 with Doubles

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

the class DoubleAccumulatorTest method testReset.

/**
 * reset() causes subsequent get() to return zero
 */
public void testReset() {
    DoubleAccumulator acc = new DoubleAccumulator(Doubles::max, 0.0);
    acc.accumulate(2.0);
    assertEquals(2.0, acc.get());
    acc.reset();
    assertEquals(0.0, acc.get());
}

Example 4 with Doubles

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

the class DoubleAccumulatorTest method testIntValue.

/**
 * intValue returns current value.
 */
public void testIntValue() {
    DoubleAccumulator acc = new DoubleAccumulator(Doubles::max, 0.0);
    assertEquals(0, acc.intValue());
    acc.accumulate(1.0);
    assertEquals(1, acc.intValue());
}

Example 5 with Doubles

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

the class SplittableRandomTest method testDoublesCount.

/**
 * A parallel sized stream of doubles generates the given number of values
 */
public void testDoublesCount() {
    LongAdder counter = new LongAdder();
    SplittableRandom r = new SplittableRandom();
    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;
    }
}