// Before fix this would throw an ArrayIndexOutOfBoundException
@Test
public void testCountOverflow() throws Exception {
StatsBuffer buffer = new StatsBuffer(SIZE, PERCENTILES);
setCount(buffer, Integer.MAX_VALUE);
buffer.record(1);
buffer.record(2);
}
StatsBuffer getWithWrap() {
StatsBuffer buffer = new StatsBuffer(SIZE, PERCENTILES);
for (int i = SIZE * 2; i > 0; --i) {
buffer.record(i);
}
buffer.computeStats();
return buffer;
}
StatsBuffer getNoWrap() {
StatsBuffer buffer = new StatsBuffer(SIZE, PERCENTILES);
int max = SIZE / 2;
for (int i = 0; i <= max; ++i) {
buffer.record(i);
}
buffer.computeStats();
return buffer;
}