@Test
public void collectIntWithTarget() {
IntHashBag target = new IntHashBag();
IntHashBag result = this.newBag().collectInt(Integer::parseInt, target);
Assert.assertSame("Target sent as parameter not returned", target, result);
Assert.assertEquals(this.numKeys(), result.sizeDistinct());
for (int i = 1; i <= this.numKeys(); i++) {
Assert.assertEquals(i, result.occurrencesOf(i));
}
}
@Override
@Test
public void collectInt() {
MutableBag<Integer> integers = UnmodifiableBag.of(HashBag.newBagWith(1, 2, 2, 3, 3, 3));
Assert.assertEquals(
IntHashBag.newBagWith(1, 2, 2, 3, 3, 3),
integers.collectInt(PrimitiveFunctions.unboxIntegerToInt()));
}