@Test
public void ortest4() {
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
for (int i = 0; i < 200000; i += 4) rb2.add(i);
for (int i = 200000; i < 400000; i += 14) rb2.add(i);
final int rb2card = rb2.getCardinality();
// check or against an empty bitmap
final MutableRoaringBitmap orresult = MutableRoaringBitmap.or(rb, rb2);
final MutableRoaringBitmap off = MutableRoaringBitmap.or(rb2, rb);
Assert.assertTrue(orresult.equals(off));
Assert.assertEquals(rb2card, orresult.getCardinality());
for (int i = 500000; i < 600000; i += 14) rb.add(i);
for (int i = 200000; i < 400000; i += 3) rb2.add(i);
// check or against an empty bitmap
final MutableRoaringBitmap orresult2 = MutableRoaringBitmap.or(rb, rb2);
Assert.assertEquals(rb2card, orresult.getCardinality());
Assert.assertEquals(rb2.getCardinality() + rb.getCardinality(), orresult2.getCardinality());
rb.or(rb2);
Assert.assertTrue(rb.equals(orresult2));
}
@Test
public void ortest2() {
final int[] arrayrr = new int[4000 + 4000 + 2];
int pos = 0;
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 0; k < 4000; ++k) {
rr.add(k);
arrayrr[pos++] = k;
}
rr.add(100000);
rr.add(110000);
final MutableRoaringBitmap rr2 = new MutableRoaringBitmap();
for (int k = 4000; k < 8000; ++k) {
rr2.add(k);
arrayrr[pos++] = k;
}
arrayrr[pos++] = 100000;
arrayrr[pos++] = 110000;
final MutableRoaringBitmap rror = MutableRoaringBitmap.or(rr, rr2);
final int[] arrayor = rror.toArray();
Assert.assertTrue(Arrays.equals(arrayor, arrayrr));
}
@Test
public void testHash() {
MutableRoaringBitmap rbm1 = new MutableRoaringBitmap();
rbm1.add(17);
MutableRoaringBitmap rbm2 = new MutableRoaringBitmap();
rbm2.add(17);
Assert.assertTrue(rbm1.hashCode() == rbm2.hashCode());
rbm2 = rbm1.clone();
Assert.assertTrue(rbm1.hashCode() == rbm2.hashCode());
}
@Test
public void andtest2() {
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 0; k < 4000; ++k) {
rr.add(k);
}
rr.add(100000);
rr.add(110000);
final MutableRoaringBitmap rr2 = new MutableRoaringBitmap();
rr2.add(13);
final MutableRoaringBitmap rrand = MutableRoaringBitmap.and(rr, rr2);
final int[] array = rrand.toArray();
Assert.assertEquals(array.length, 1);
Assert.assertEquals(array[0], 13);
}
@Test
public void simplecardinalityTest() {
final int N = 512;
final int gap = 70;
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
for (int k = 0; k < N; k++) {
rb.add(k * gap);
Assert.assertEquals(rb.getCardinality(), k + 1);
}
Assert.assertEquals(rb.getCardinality(), N);
for (int k = 0; k < N; k++) {
rb.add(k * gap);
Assert.assertEquals(rb.getCardinality(), N);
}
}
@Test
public void andnottest4() {
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
for (int i = 0; i < 200000; i += 4) rb2.add(i);
for (int i = 200000; i < 400000; i += 14) rb2.add(i);
rb2.getCardinality();
// check or against an empty bitmap
final MutableRoaringBitmap andNotresult = MutableRoaringBitmap.andNot(rb, rb2);
final MutableRoaringBitmap off = MutableRoaringBitmap.andNot(rb2, rb);
Assert.assertEquals(rb, andNotresult);
Assert.assertEquals(rb2, off);
rb2.andNot(rb);
Assert.assertEquals(rb2, off);
}
@Test
public void testSerialization3() throws IOException, ClassNotFoundException {
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 65000; k < 2 * 65000; ++k) rr.add(k);
rr.add(1444000);
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
// Note: you could use a file output steam instead of
// ByteArrayOutputStream
int howmuch = rr.serializedSizeInBytes();
final DataOutputStream oo = new DataOutputStream(bos);
rr.serialize(oo);
oo.close();
Assert.assertEquals(howmuch, bos.toByteArray().length);
final MutableRoaringBitmap rrback = new MutableRoaringBitmap();
final ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
rrback.deserialize(new DataInputStream(bis));
Assert.assertEquals(rr.getCardinality(), rrback.getCardinality());
Assert.assertTrue(rr.equals(rrback));
}
@Test
public void basictest() {
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
final int N = 4000;
final int[] a = new int[N + 2];
int pos = 0;
for (int k = 0; k < N; ++k) {
rr.add(k);
a[pos++] = k;
}
rr.add(100000);
a[pos++] = 100000;
rr.add(110000);
a[pos++] = 110000;
final int[] array = rr.toArray();
for (int i = 0; i < array.length; i++)
if (array[i] != a[i]) System.out.println("rr : " + array[i] + " a : " + a[i]);
Assert.assertTrue(Arrays.equals(array, a));
}
@Test
public void clearTest() {
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
for (int i = 0; i < 200000; i += 7)
// dense
rb.add(i);
for (int i = 200000; i < 400000; i += 177)
// sparse
rb.add(i);
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
final MutableRoaringBitmap rb3 = new MutableRoaringBitmap();
for (int i = 0; i < 200000; i += 4) rb2.add(i);
for (int i = 200000; i < 400000; i += 14) rb2.add(i);
rb.clear();
Assert.assertEquals(0, rb.getCardinality());
Assert.assertTrue(0 != rb2.getCardinality());
rb.add(4);
rb3.add(4);
final MutableRoaringBitmap andresult = MutableRoaringBitmap.and(rb, rb2);
final MutableRoaringBitmap orresult = MutableRoaringBitmap.or(rb, rb2);
Assert.assertEquals(1, andresult.getCardinality());
Assert.assertEquals(rb2.getCardinality(), orresult.getCardinality());
for (int i = 0; i < 200000; i += 4) {
rb.add(i);
rb3.add(i);
}
for (int i = 200000; i < 400000; i += 114) {
rb.add(i);
rb3.add(i);
}
final int[] arrayrr = rb.toArray();
final int[] arrayrr3 = rb3.toArray();
Assert.assertTrue(Arrays.equals(arrayrr, arrayrr3));
}
@Test
public void andtest4() {
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
for (int i = 0; i < 200000; i += 4) rb2.add(i);
for (int i = 200000; i < 400000; i += 14) rb2.add(i);
// check or against an empty bitmap
final MutableRoaringBitmap andresult = MutableRoaringBitmap.and(rb, rb2);
final MutableRoaringBitmap off = MutableRoaringBitmap.and(rb2, rb);
Assert.assertTrue(andresult.equals(off));
Assert.assertEquals(0, andresult.getCardinality());
for (int i = 500000; i < 600000; i += 14) rb.add(i);
for (int i = 200000; i < 400000; i += 3) rb2.add(i);
// check or against an empty bitmap
final MutableRoaringBitmap andresult2 = MutableRoaringBitmap.and(rb, rb2);
Assert.assertEquals(0, andresult.getCardinality());
Assert.assertEquals(0, andresult2.getCardinality());
for (int i = 0; i < 200000; i += 4) rb.add(i);
for (int i = 200000; i < 400000; i += 14) rb.add(i);
Assert.assertEquals(0, andresult.getCardinality());
final MutableRoaringBitmap rc = MutableRoaringBitmap.and(rb, rb2);
rb.and(rb2);
Assert.assertEquals(rc.getCardinality(), rb.getCardinality());
}
@Test
public void cardinalityTest() {
final int N = 1024;
for (int gap = 7; gap < 100000; gap *= 10) {
for (int offset = 2; offset <= 1024; offset *= 2) {
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
// check the add of new values
for (int k = 0; k < N; k++) {
rb.add(k * gap);
Assert.assertEquals(rb.getCardinality(), k + 1);
}
Assert.assertEquals(rb.getCardinality(), N);
// check the add of existing values
for (int k = 0; k < N; k++) {
rb.add(k * gap);
Assert.assertEquals(rb.getCardinality(), N);
}
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
for (int k = 0; k < N; k++) {
rb2.add(k * gap * offset);
Assert.assertEquals(rb2.getCardinality(), k + 1);
}
Assert.assertEquals(rb2.getCardinality(), N);
for (int k = 0; k < N; k++) {
rb2.add(k * gap * offset);
Assert.assertEquals(rb2.getCardinality(), N);
}
Assert.assertEquals(MutableRoaringBitmap.and(rb, rb2).getCardinality(), N / offset);
Assert.assertEquals(MutableRoaringBitmap.or(rb, rb2).getCardinality(), 2 * N - N / offset);
Assert.assertEquals(
MutableRoaringBitmap.xor(rb, rb2).getCardinality(), 2 * N - 2 * N / offset);
}
}
}
@Test
public void testIterator() {
MutableRoaringBitmap rb = new MutableRoaringBitmap();
for (int k = 0; k < 4000; ++k) rb.add(k);
for (int k = 0; k < 1000; ++k) rb.add(k * 100);
MutableRoaringBitmap copy1 = new MutableRoaringBitmap();
for (int x : rb) {
copy1.add(x);
}
Assert.assertTrue(copy1.equals(rb));
MutableRoaringBitmap copy2 = new MutableRoaringBitmap();
IntIterator i = rb.getIntIterator();
Iterator<Integer> is = rb.iterator();
while (i.hasNext()) {
if (!is.hasNext()) throw new RuntimeException("bug");
int x = i.next();
copy2.add(x);
int xs = is.next();
if (x != xs) throw new RuntimeException("values differ " + x + " " + xs);
}
if (is.hasNext()) throw new RuntimeException("bug: more data available");
Assert.assertTrue(copy2.equals(rb));
}
@Test
public void ortest() {
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 0; k < 4000; ++k) {
rr.add(k);
}
rr.add(100000);
rr.add(110000);
final MutableRoaringBitmap rr2 = new MutableRoaringBitmap();
for (int k = 0; k < 4000; ++k) {
rr2.add(k);
}
final MutableRoaringBitmap rror = MutableRoaringBitmap.or(rr, rr2);
final int[] array = rror.toArray();
final int[] arrayrr = rr.toArray();
Assert.assertTrue(Arrays.equals(array, arrayrr));
rr.or(rr2);
final int[] arrayirr = rr.toArray();
Assert.assertTrue(Arrays.equals(array, arrayirr));
}
@Test
public void flipTest2A() {
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
final MutableRoaringBitmap rb1 = MutableRoaringBitmap.flip(rb, 100000, 100000);
rb.add(1); // will not affect rb1 (no shared container)
final int rbcard = rb1.getCardinality();
Assert.assertEquals(0, rbcard);
Assert.assertEquals(1, rb.getCardinality());
final BitSet bs = new BitSet();
Assert.assertTrue(equals(bs, rb1));
bs.set(1);
Assert.assertTrue(equals(bs, rb));
}
@Test
public void testSerialization2() throws IOException, ClassNotFoundException {
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 200; k < 400; ++k) rr.add(k);
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
// Note: you could use a file output steam instead of
// ByteArrayOutputStream
final ObjectOutputStream oo = new ObjectOutputStream(bos);
rr.writeExternal(oo);
oo.close();
final MutableRoaringBitmap rrback = new MutableRoaringBitmap();
final ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
rrback.readExternal(new ObjectInputStream(bis));
Assert.assertEquals(rr.getCardinality(), rrback.getCardinality());
Assert.assertTrue(rr.equals(rrback));
}
@Test
public void testContains() throws IOException {
System.out.println("test contains");
MutableRoaringBitmap rbm1 = new MutableRoaringBitmap();
for (int k = 0; k < 1000; ++k) {
rbm1.add(17 * k);
}
for (int k = 0; k < 17 * 1000; ++k) {
Assert.assertTrue(rbm1.contains(k) == (k / 17 * 17 == k));
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
rbm1.serialize(dos);
dos.close();
ByteBuffer bb = ByteBuffer.allocateDirect(bos.size());
bb.put(bos.toByteArray());
bb.flip();
ImmutableRoaringBitmap rrback1 = new ImmutableRoaringBitmap(bb);
for (int k = 0; k < 17 * 1000; ++k) {
Assert.assertTrue(rrback1.contains(k) == (k / 17 * 17 == k));
}
}
public void rTest(final int N) {
System.out.println("rtest N=" + N);
for (int gap = 1; gap <= 65536; gap *= 2) {
final BitSet bs1 = new BitSet();
final MutableRoaringBitmap rb1 = new MutableRoaringBitmap();
for (int x = 0; x <= N; x += gap) {
bs1.set(x);
rb1.add(x);
}
if (bs1.cardinality() != rb1.getCardinality()) throw new RuntimeException("different card");
if (!equals(bs1, rb1)) throw new RuntimeException("basic bug");
for (int offset = 1; offset <= gap; offset *= 2) {
final BitSet bs2 = new BitSet();
final MutableRoaringBitmap rb2 = new MutableRoaringBitmap();
for (int x = 0; x <= N; x += gap) {
bs2.set(x + offset);
rb2.add(x + offset);
}
if (bs2.cardinality() != rb2.getCardinality()) throw new RuntimeException("different card");
if (!equals(bs2, rb2)) throw new RuntimeException("basic bug");
BitSet clonebs1;
// testing AND
clonebs1 = (BitSet) bs1.clone();
clonebs1.and(bs2);
if (!equals(clonebs1, MutableRoaringBitmap.and(rb1, rb2)))
throw new RuntimeException("bug and");
{
final MutableRoaringBitmap t = rb1.clone();
t.and(rb2);
if (!equals(clonebs1, t)) throw new RuntimeException("bug inplace and");
if (!t.equals(MutableRoaringBitmap.and(rb1, rb2))) {
System.out.println(
t.highLowContainer.getContainerAtIndex(0).getClass().getCanonicalName());
System.out.println(
MutableRoaringBitmap.and(rb1, rb2)
.highLowContainer
.getContainerAtIndex(0)
.getClass()
.getCanonicalName());
throw new RuntimeException("bug inplace and");
}
}
// testing OR
clonebs1 = (BitSet) bs1.clone();
clonebs1.or(bs2);
if (!equals(clonebs1, MutableRoaringBitmap.or(rb1, rb2)))
throw new RuntimeException("bug or");
{
final MutableRoaringBitmap t = rb1.clone();
t.or(rb2);
if (!equals(clonebs1, t)) throw new RuntimeException("bug or");
if (!t.equals(MutableRoaringBitmap.or(rb1, rb2))) throw new RuntimeException("bug or");
if (!t.toString().equals(MutableRoaringBitmap.or(rb1, rb2).toString()))
throw new RuntimeException("bug or");
}
// testing XOR
clonebs1 = (BitSet) bs1.clone();
clonebs1.xor(bs2);
if (!equals(clonebs1, MutableRoaringBitmap.xor(rb1, rb2))) {
throw new RuntimeException("bug xor");
}
{
final MutableRoaringBitmap t = rb1.clone();
t.xor(rb2);
if (!equals(clonebs1, t)) throw new RuntimeException("bug xor");
if (!t.equals(MutableRoaringBitmap.xor(rb1, rb2))) {
System.out.println(t);
System.out.println(MutableRoaringBitmap.xor(rb1, rb2));
System.out.println(
Arrays.equals(t.toArray(), MutableRoaringBitmap.xor(rb1, rb2).toArray()));
throw new RuntimeException("bug xor");
}
}
// testing NOTAND
clonebs1 = (BitSet) bs1.clone();
clonebs1.andNot(bs2);
if (!equals(clonebs1, MutableRoaringBitmap.andNot(rb1, rb2))) {
throw new RuntimeException("bug andnot");
}
clonebs1 = (BitSet) bs2.clone();
clonebs1.andNot(bs1);
if (!equals(clonebs1, MutableRoaringBitmap.andNot(rb2, rb1))) {
throw new RuntimeException("bug andnot");
}
{
final MutableRoaringBitmap t = rb2.clone();
t.andNot(rb1);
if (!equals(clonebs1, t)) {
throw new RuntimeException("bug inplace andnot");
}
final MutableRoaringBitmap g = MutableRoaringBitmap.andNot(rb2, rb1);
if (!equals(clonebs1, g)) {
throw new RuntimeException("bug andnot");
}
if (!t.equals(g)) throw new RuntimeException("bug");
}
clonebs1 = (BitSet) bs1.clone();
clonebs1.andNot(bs2);
if (!equals(clonebs1, MutableRoaringBitmap.andNot(rb1, rb2))) {
throw new RuntimeException("bug andnot");
}
{
final MutableRoaringBitmap t = rb1.clone();
t.andNot(rb2);
if (!equals(clonebs1, t)) {
throw new RuntimeException("bug andnot");
}
final MutableRoaringBitmap g = MutableRoaringBitmap.andNot(rb1, rb2);
if (!equals(clonebs1, g)) {
throw new RuntimeException("bug andnot");
}
if (!t.equals(g)) throw new RuntimeException("bug");
}
}
}
}
@Test
public void andtest3() {
final int[] arrayand = new int[11256];
int pos = 0;
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 4000; k < 4256; ++k) rr.add(k);
for (int k = 65536; k < 65536 + 4000; ++k) rr.add(k);
for (int k = 3 * 65536; k < 3 * 65536 + 1000; ++k) rr.add(k);
for (int k = 3 * 65536 + 1000; k < 3 * 65536 + 7000; ++k) rr.add(k);
for (int k = 3 * 65536 + 7000; k < 3 * 65536 + 9000; ++k) rr.add(k);
for (int k = 4 * 65536; k < 4 * 65536 + 7000; ++k) rr.add(k);
for (int k = 6 * 65536; k < 6 * 65536 + 10000; ++k) rr.add(k);
for (int k = 8 * 65536; k < 8 * 65536 + 1000; ++k) rr.add(k);
for (int k = 9 * 65536; k < 9 * 65536 + 30000; ++k) rr.add(k);
final MutableRoaringBitmap rr2 = new MutableRoaringBitmap();
for (int k = 4000; k < 4256; ++k) {
rr2.add(k);
arrayand[pos++] = k;
}
for (int k = 65536; k < 65536 + 4000; ++k) {
rr2.add(k);
arrayand[pos++] = k;
}
for (int k = 3 * 65536 + 1000; k < 3 * 65536 + 7000; ++k) {
rr2.add(k);
arrayand[pos++] = k;
}
for (int k = 6 * 65536; k < 6 * 65536 + 1000; ++k) {
rr2.add(k);
arrayand[pos++] = k;
}
for (int k = 7 * 65536; k < 7 * 65536 + 1000; ++k) {
rr2.add(k);
}
for (int k = 10 * 65536; k < 10 * 65536 + 5000; ++k) {
rr2.add(k);
}
final MutableRoaringBitmap rrand = MutableRoaringBitmap.and(rr, rr2);
final int[] arrayres = rrand.toArray();
for (int i = 0; i < arrayres.length; i++)
if (arrayres[i] != arrayand[i]) System.out.println(arrayres[i]);
Assert.assertTrue(Arrays.equals(arrayand, arrayres));
}
@Test
public void ortest3() {
final HashSet<Integer> V1 = new HashSet<Integer>();
final HashSet<Integer> V2 = new HashSet<Integer>();
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
final MutableRoaringBitmap rr2 = new MutableRoaringBitmap();
// For the first 65536: rr2 has a bitmap container, and rr has
// an array container.
// We will check the union between a BitmapCintainer and an
// arrayContainer
for (int k = 0; k < 4000; ++k) {
rr2.add(k);
V1.add(k);
}
for (int k = 3500; k < 4500; ++k) {
rr.add(k);
V1.add(k);
}
for (int k = 4000; k < 65000; ++k) {
rr2.add(k);
V1.add(k);
}
// In the second node of each roaring bitmap, we have two bitmap
// containers.
// So, we will check the union between two BitmapContainers
for (int k = 65536; k < 65536 + 10000; ++k) {
rr.add(k);
V1.add(k);
}
for (int k = 65536; k < 65536 + 14000; ++k) {
rr2.add(k);
V1.add(k);
}
// In the 3rd node of each Roaring Bitmap, we have an
// ArrayContainer, so, we will try the union between two
// ArrayContainers.
for (int k = 4 * 65535; k < 4 * 65535 + 1000; ++k) {
rr.add(k);
V1.add(k);
}
for (int k = 4 * 65535; k < 4 * 65535 + 800; ++k) {
rr2.add(k);
V1.add(k);
}
// For the rest, we will check if the union will take them in
// the result
for (int k = 6 * 65535; k < 6 * 65535 + 1000; ++k) {
rr.add(k);
V1.add(k);
}
for (int k = 7 * 65535; k < 7 * 65535 + 2000; ++k) {
rr2.add(k);
V1.add(k);
}
final MutableRoaringBitmap rror = MutableRoaringBitmap.or(rr, rr2);
boolean valide = true;
// Si tous les elements de rror sont dans V1 et que tous les
// elements de
// V1 sont dans rror(V2)
// alors V1 == rror
final Object[] tab = V1.toArray();
final Vector<Integer> vector = new Vector<Integer>();
for (Object aTab : tab) vector.add((Integer) aTab);
for (final int i : rror.toArray()) {
if (!vector.contains(i)) {
valide = false;
}
V2.add(i);
}
for (int i = 0; i < V1.size(); i++)
if (!V2.contains(vector.elementAt(i))) {
valide = false;
}
Assert.assertEquals(valide, true);
}
@Test
public void ORtest() {
final MutableRoaringBitmap rr = new MutableRoaringBitmap();
for (int k = 4000; k < 4256; ++k) rr.add(k);
for (int k = 65536; k < 65536 + 4000; ++k) rr.add(k);
for (int k = 3 * 65536; k < 3 * 65536 + 9000; ++k) rr.add(k);
for (int k = 4 * 65535; k < 4 * 65535 + 7000; ++k) rr.add(k);
for (int k = 6 * 65535; k < 6 * 65535 + 10000; ++k) rr.add(k);
for (int k = 8 * 65535; k < 8 * 65535 + 1000; ++k) rr.add(k);
for (int k = 9 * 65535; k < 9 * 65535 + 30000; ++k) rr.add(k);
final MutableRoaringBitmap rr2 = new MutableRoaringBitmap();
for (int k = 4000; k < 4256; ++k) {
rr2.add(k);
}
for (int k = 65536; k < 65536 + 4000; ++k) {
rr2.add(k);
}
for (int k = 3 * 65536 + 2000; k < 3 * 65536 + 6000; ++k) {
rr2.add(k);
}
for (int k = 6 * 65535; k < 6 * 65535 + 1000; ++k) {
rr2.add(k);
}
for (int k = 7 * 65535; k < 7 * 65535 + 1000; ++k) {
rr2.add(k);
}
for (int k = 10 * 65535; k < 10 * 65535 + 5000; ++k) {
rr2.add(k);
}
final MutableRoaringBitmap correct = MutableRoaringBitmap.or(rr, rr2);
rr.or(rr2);
Assert.assertTrue(correct.equals(rr));
}
