Examples with DoubleCursor com.carrotsearch.hppc.cursors.DoubleCursor used on opensource projects

Example 1 with DoubleCursor

use of com.carrotsearch.hppc.cursors.DoubleCursor in project teavm by konsoletyper.

the class Helper method testDoubleStream.

static void testDoubleStream(Supplier<DoubleStream> streamSupplier, double... expected) {
    StringBuilder sb = new StringBuilder();
    for (double e : expected) {
        sb.append(e).append(';');
    }
    String expectedText = sb.toString();
    sb.setLength(0);
    streamSupplier.get().forEach(appendDoubleNumbersTo(sb));
    assertEquals(expectedText, sb.toString());
    sb.setLength(0);
    PrimitiveIterator.OfDouble iter = streamSupplier.get().iterator();
    while (iter.hasNext()) {
        sb.append(iter.next()).append(';');
    }
    assertEquals(expectedText, sb.toString());
    sb.setLength(0);
    DoubleArrayList list = streamSupplier.get().collect(DoubleArrayList::new, DoubleArrayList::add, DoubleArrayList::addAll);
    for (DoubleCursor cursor : list) {
        sb.append(cursor.value).append(';');
    }
    assertEquals(expectedText, sb.toString());
    assertEquals(expected.length, streamSupplier.get().count());
    if (expected.length > 0) {
        double max = expected[0];
        for (double e : expected) {
            max = Math.max(max, e);
        }
        double notInCollection = max + 1;
        double inCollection = expected[0];
        assertTrue(streamSupplier.get().allMatch(e -> e < notInCollection));
        assertFalse(streamSupplier.get().allMatch(e -> e < inCollection));
        assertTrue(streamSupplier.get().anyMatch(e -> e == inCollection));
        assertFalse(streamSupplier.get().anyMatch(e -> e == notInCollection));
    } else {
        assertTrue(streamSupplier.get().allMatch(e -> false));
        assertTrue(streamSupplier.get().allMatch(e -> true));
        assertFalse(streamSupplier.get().anyMatch(e -> true));
        assertFalse(streamSupplier.get().anyMatch(e -> false));
    }
}