@Test public void collectDoubleWithTarget() { DoubleHashBag target = new DoubleHashBag(); DoubleHashBag result = this.newBag().collectDouble(Double::parseDouble, 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 collectDouble() { MutableBag<Integer> integers = UnmodifiableBag.of(HashBag.newBagWith(1, 2, 2, 3, 3, 3)); Assert.assertEquals( DoubleHashBag.newBagWith(1.0d, 2.0d, 2.0d, 3.0d, 3.0d, 3.0d), integers.collectDouble(PrimitiveFunctions.unboxIntegerToDouble())); }