for (int val = 0; val < 2000; val += (id + 1)) {
if (loader.add(id, val)) count[id]++;
}
}
BigNestedIntArray nestedArray = new BigNestedIntArray();
nestedArray.load(maxId, loader);
int[] buf = new int[1024];
for (int id = 0; id < maxId; id++) {
int cnt = nestedArray.getData(id, buf);
assertEquals("item count", count[id], cnt);