@Test
public void flipTest6A() {
System.out.println("FlipTest6A");
final RoaringBitmap rb = new RoaringBitmap();
final RoaringBitmap rb1 = RoaringBitmap.flip(rb, 100000, 132000);
final RoaringBitmap rb2 = RoaringBitmap.flip(rb1, 99000, 2 * 65536);
final int rbcard = rb2.getCardinality();
Assert.assertEquals(1928, rbcard);
final BitSet bs = new BitSet();
for (int i = 99000; i < 100000; ++i) bs.set(i);
for (int i = 2 * 65536; i < 132000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb2));
}
@Test
public void flipTest3A() {
System.out.println("FlipTest3A");
final RoaringBitmap rb = new RoaringBitmap();
final RoaringBitmap rb1 = RoaringBitmap.flip(rb, 100000, 200000);
final RoaringBitmap rb2 = RoaringBitmap.flip(rb1, 100000, 199991);
final int rbcard = rb2.getCardinality();
Assert.assertEquals(9, rbcard);
final BitSet bs = new BitSet();
for (int i = 199991; i < 200000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb2));
}
@Test
public void flipTest7A() { // within 1 word, first container
System.out.println("FlipTest7A");
final RoaringBitmap rb = new RoaringBitmap();
final RoaringBitmap rb1 = RoaringBitmap.flip(rb, 650, 132000);
final RoaringBitmap rb2 = RoaringBitmap.flip(rb1, 648, 651);
final int rbcard = rb2.getCardinality();
// 648, 649, 651-131999
Assert.assertEquals(132000 - 651 + 2, rbcard);
final BitSet bs = new BitSet();
bs.set(648);
bs.set(649);
for (int i = 651; i < 132000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb2));
}
@Test
public void flipTest6() { // fits evenly on big end, multiple containers
System.out.println("FlipTest6");
final RoaringBitmap rb = new RoaringBitmap();
rb.flip(100000, 132000);
rb.flip(99000, 2 * 65536);
final int rbcard = rb.getCardinality();
// 99000 to 99999 are 1000 1s
// 131072 to 131999 are 928 1s
Assert.assertEquals(1928, rbcard);
final BitSet bs = new BitSet();
for (int i = 99000; i < 100000; ++i) bs.set(i);
for (int i = 2 * 65536; i < 132000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb));
}
@Test
public void flipTest5() { // fits evenly on small end, multiple
// containers
System.out.println("FlipTest5");
final RoaringBitmap rb = new RoaringBitmap();
rb.flip(100000, 132000);
rb.flip(65536, 120000);
final int rbcard = rb.getCardinality();
// 65536 to 99999 are 1s
// 120000 to 131999
Assert.assertEquals(46464, rbcard);
final BitSet bs = new BitSet();
for (int i = 65536; i < 100000; ++i) bs.set(i);
for (int i = 120000; i < 132000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb));
}
@Test
public void flipTest4() { // fits evenly on both ends
System.out.println("FlipTest4");
final RoaringBitmap rb = new RoaringBitmap();
rb.flip(100000, 200000); // got 100k-199999
rb.flip(65536, 4 * 65536);
final int rbcard = rb.getCardinality();
// 65536 to 99999 are 1s
// 200000 to 262143 are 1s: total card
Assert.assertEquals(96608, rbcard);
final BitSet bs = new BitSet();
for (int i = 65536; i < 100000; ++i) bs.set(i);
for (int i = 200000; i < 262144; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb));
}
@Test
public void flipTest2() {
final RoaringBitmap rb = new RoaringBitmap();
rb.flip(100000, 100000);
final int rbcard = rb.getCardinality();
Assert.assertEquals(0, rbcard);
final BitSet bs = new BitSet();
Assert.assertTrue(equals(bs, rb));
}
@Test
public void flipTest1() {
final RoaringBitmap rb = new RoaringBitmap();
rb.flip(100000, 200000); // in-place on empty bitmap
final int rbcard = rb.getCardinality();
Assert.assertEquals(100000, rbcard);
final BitSet bs = new BitSet();
for (int i = 100000; i < 200000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb));
}
@Test
public void flipTest1A() {
final RoaringBitmap rb = new RoaringBitmap();
final RoaringBitmap rb1 = RoaringBitmap.flip(rb, 100000, 200000);
final int rbcard = rb1.getCardinality();
Assert.assertEquals(100000, rbcard);
Assert.assertEquals(0, rb.getCardinality());
final BitSet bs = new BitSet();
Assert.assertTrue(equals(bs, rb)); // still empty?
for (int i = 100000; i < 200000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb1));
}
@Test
public void flipTest3() {
final RoaringBitmap rb = new RoaringBitmap();
rb.flip(100000, 200000); // got 100k-199999
rb.flip(100000, 199991); // give back 100k-199990
final int rbcard = rb.getCardinality();
Assert.assertEquals(9, rbcard);
final BitSet bs = new BitSet();
for (int i = 199991; i < 200000; ++i) bs.set(i);
Assert.assertTrue(equals(bs, rb));
}
@Test
public void flipTest2A() {
final RoaringBitmap rb = new RoaringBitmap();
final RoaringBitmap rb1 = RoaringBitmap.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));
}
@SuppressWarnings("null")
@Test
public void flipTestBigA() {
final int numCases = 1000000;
System.out.println("flipTestBigA for " + numCases + " tests");
final BitSet bs = new BitSet();
final Random r = new Random(3333);
int checkTime = 2;
RoaringBitmap rb1 = new RoaringBitmap(), 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 = RoaringBitmap.flip(rb1, start, end);
// tweak the other, catch bad sharing
rb1.flip(r.nextInt(65536 * 20), r.nextInt(65536 * 20));
} else {
rb1 = RoaringBitmap.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 RoaringBitmap mask = new RoaringBitmap();
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 RoaringBitmap 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 = 1000000;
System.out.println("flipTestBig for " + numCases + " tests");
final RoaringBitmap rb = new RoaringBitmap();
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 RoaringBitmap mask = new RoaringBitmap();
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 RoaringBitmap irrelevant = RoaringBitmap.flip(rb, 10, 100000);
irrelevant.flip(5, 200000);
irrelevant.flip(190000, 260000);
}
if (i > checkTime) {
System.out.println("check after " + i + ", card = " + rb.getCardinality());
Assert.assertTrue(equals(bs, rb));
checkTime *= 1.5;
}
}
}