@Test
public void flipTestBigA() {
final int numCases = 1000;
final BitSet bs = new BitSet();
final Random r = new Random(3333);
int checkTime = 2;
MutableRoaringBitmap rb1 = new MutableRoaringBitmap(), rb2 = null; // alternate
// between
// them
for (int i = 0; i < numCases; ++i) {
final int start = r.nextInt(65536 * 20);
int end = r.nextInt(65536 * 20);
if (r.nextDouble() < 0.1) end = start + r.nextInt(100);
if ((i & 1) == 0) {
rb2 = MutableRoaringBitmap.flip(rb1, start, end);
// tweak the other, catch bad sharing
rb1.flip(r.nextInt(65536 * 20), r.nextInt(65536 * 20));
} else {
rb1 = MutableRoaringBitmap.flip(rb2, start, end);
rb2.flip(r.nextInt(65536 * 20), r.nextInt(65536 * 20));
}
if (start < end) bs.flip(start, end); // throws exception
// otherwise
// insert some more ANDs to keep things sparser
if (r.nextDouble() < 0.2 && (i & 1) == 0) {
final MutableRoaringBitmap mask = new MutableRoaringBitmap();
final BitSet mask1 = new BitSet();
final int startM = r.nextInt(65536 * 20);
final int endM = startM + 100000;
mask.flip(startM, endM);
mask1.flip(startM, endM);
mask.flip(0, 65536 * 20 + 100000);
mask1.flip(0, 65536 * 20 + 100000);
rb2.and(mask);
bs.and(mask1);
}
if (i > checkTime) {
System.out.println("check after " + i + ", card = " + rb2.getCardinality());
final MutableRoaringBitmap rb = (i & 1) == 0 ? rb2 : rb1;
final boolean status = equals(bs, rb);
Assert.assertTrue(status);
checkTime *= 1.5;
}
}
}
@Test
public void flipTestBig() {
final int numCases = 1000;
System.out.println("flipTestBig for " + numCases + " tests");
final MutableRoaringBitmap rb = new MutableRoaringBitmap();
final BitSet bs = new BitSet();
final Random r = new Random(3333);
int checkTime = 2;
for (int i = 0; i < numCases; ++i) {
final int start = r.nextInt(65536 * 20);
int end = r.nextInt(65536 * 20);
if (r.nextDouble() < 0.1) end = start + r.nextInt(100);
rb.flip(start, end);
if (start < end) bs.flip(start, end); // throws exception
// otherwise
// insert some more ANDs to keep things sparser
if (r.nextDouble() < 0.2) {
final MutableRoaringBitmap mask = new MutableRoaringBitmap();
final BitSet mask1 = new BitSet();
final int startM = r.nextInt(65536 * 20);
final int endM = startM + 100000;
mask.flip(startM, endM);
mask1.flip(startM, endM);
mask.flip(0, 65536 * 20 + 100000);
mask1.flip(0, 65536 * 20 + 100000);
rb.and(mask);
bs.and(mask1);
}
// see if we can detect incorrectly shared containers
if (r.nextDouble() < 0.1) {
final MutableRoaringBitmap irrelevant = MutableRoaringBitmap.flip(rb, 10, 100000);
irrelevant.flip(5, 200000);
irrelevant.flip(190000, 260000);
}
if (i > checkTime) {
Assert.assertTrue(equals(bs, rb));
checkTime *= 1.5;
}
}
}
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");
}
}
}
}