@Test
@SuppressWarnings("deprecation")
public void testDeprecatedIteratorAnd() {
MutableRoaringBitmap rb1 = new MutableRoaringBitmap();
MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
List<MutableRoaringBitmap> list = new ArrayList<>();
list.add(rb1);
list.add(rb2);
rb1.add(200000L, 400000L); // two normal positive ranges
rb2.add(300000L, 500000L); // full overlap is on 300000 to 399999
MutableRoaringBitmap result = ImmutableRoaringBitmap.and(list.iterator(), 350000L, 450000L);
MutableRoaringBitmap resultInt = ImmutableRoaringBitmap.and(list.iterator(), 350000, 450000);
Assert.assertTrue(result.equals(resultInt));
Assert.assertEquals(50000, result.getCardinality());
// empty ranges get empty result
resultInt = ImmutableRoaringBitmap.and(list.iterator(), 300000, 200000);
result = ImmutableRoaringBitmap.and(list.iterator(), 300000L, 200000L);
Assert.assertTrue(result.equals(resultInt));
Assert.assertEquals(0, resultInt.getCardinality());
}
@Test
public void testRangedAnd() {
int length = 1000;
int NUM_ITER = 10;
Random random = new Random(1234); // please use deterministic tests
for (int test = 0; test < 50; ++test) {
final MutableRoaringBitmap rb1 = new MutableRoaringBitmap();
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
Set<Integer> set1 = new HashSet<>();
Set<Integer> set2 = new HashSet<>();
int numBitsToSet = length / 2;
for (int i = 0; i < numBitsToSet; i++) {
int val1 = random.nextInt(length);
int val2 = random.nextInt(length);
rb1.add(val1);
set1.add(val1);
rb2.add(val2);
set2.add(val2);
}
Set<Integer> intersectionSet = new TreeSet<>(set1);
intersectionSet.retainAll(set2);
for (int iter = 0; iter < NUM_ITER; iter++) {
int rangeStart = random.nextInt(length - 1);
// +1 to ensure rangeEnd >rangeStart, may
int rangeLength = random.nextInt(length - rangeStart) + 1;
int rangeEnd = rangeStart + rangeLength;
Set<Integer> expectedResultSet = new TreeSet<>();
for (int i = rangeStart; i < rangeEnd; i++) {
if (intersectionSet.contains(i)) {
expectedResultSet.add(i);
}
}
List<ImmutableRoaringBitmap> list = new ArrayList<>();
list.add(rb1);
list.add(rb2);
MutableRoaringBitmap result =
ImmutableRoaringBitmap.and(list.iterator(), rangeStart, rangeEnd);
Set<Integer> actualResultSet = new TreeSet<>();
IntIterator intIterator = result.getIntIterator();
while (intIterator.hasNext()) {
actualResultSet.add(intIterator.next());
}
Assert.assertEquals(expectedResultSet, actualResultSet);
}
}
}