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|
extern crate roaring;
use roaring::RoaringBitmap;
#[test]
fn smoke() {
let mut bitmap = RoaringBitmap::new();
assert_eq!(bitmap.len(), 0);
assert!(bitmap.is_empty());
bitmap.remove(0);
assert_eq!(bitmap.len(), 0);
assert!(bitmap.is_empty());
bitmap.insert(1);
assert!(bitmap.contains(1));
assert_eq!(bitmap.len(), 1);
assert!(!bitmap.is_empty());
bitmap.insert(u32::MAX - 2);
assert!(bitmap.contains(u32::MAX - 2));
assert_eq!(bitmap.len(), 2);
bitmap.insert(u32::MAX);
assert!(bitmap.contains(u32::MAX));
assert_eq!(bitmap.len(), 3);
bitmap.insert(2);
assert!(bitmap.contains(2));
assert_eq!(bitmap.len(), 4);
bitmap.remove(2);
assert!(!bitmap.contains(2));
assert_eq!(bitmap.len(), 3);
assert!(!bitmap.contains(0));
assert!(bitmap.contains(1));
assert!(!bitmap.contains(100));
assert!(bitmap.contains(u32::MAX - 2));
assert!(!bitmap.contains(u32::MAX - 1));
assert!(bitmap.contains(u32::MAX));
}
#[test]
fn remove_range() {
let ranges = [0u32, 1, 63, 64, 65, 100, 4096 - 1, 4096, 4096 + 1, 65536 - 1, 65536, 65536 + 1];
for (i, &a) in ranges.iter().enumerate() {
for &b in &ranges[i..] {
let mut bitmap = (0..=65536).collect::<RoaringBitmap>();
assert_eq!(bitmap.remove_range(a..b), u64::from(b - a));
assert_eq!(bitmap, (0..a).chain(b..=65536).collect::<RoaringBitmap>());
}
}
}
#[test]
#[allow(clippy::range_plus_one)] // remove_range needs an exclusive range
fn remove_range_array() {
let mut bitmap = (0..1000).collect::<RoaringBitmap>();
for i in 0..1000 {
assert_eq!(bitmap.remove_range(i..i), 0);
assert_eq!(bitmap.remove_range(i..i + 1), 1);
}
// insert 0, 2, 4, ..
// remove [0, 2), [2, 4), ..
let mut bitmap = (0..1000).map(|x| x * 2).collect::<RoaringBitmap>();
for i in 0..1000 {
assert_eq!(bitmap.remove_range(i * 2..(i + 1) * 2), 1);
}
// remove [0, 2), [2, 4), ..
let mut bitmap = (0..1000).collect::<RoaringBitmap>();
for i in 0..1000 / 2 {
assert_eq!(bitmap.remove_range(i * 2..(i + 1) * 2), 2);
}
}
#[test]
#[allow(clippy::range_plus_one)] // remove_range needs an exclusive range
fn remove_range_bitmap() {
let mut bitmap = (0..4096 + 1000).collect::<RoaringBitmap>();
for i in 0..1000 {
assert_eq!(bitmap.remove_range(i..i), 0);
assert_eq!(bitmap.remove_range(i..i + 1), 1);
}
// insert 0, 2, 4, ..
// remove [0, 2), [2, 4), ..
let mut bitmap = ((0..4096 + 1000).map(|x| x * 2)).collect::<RoaringBitmap>();
for i in 0..1000 {
assert_eq!(bitmap.remove_range(i * 2..(i + 1) * 2), 1);
}
// remove [0, 2), [2, 4), ..
let mut bitmap = (0..4096 + 1000).collect::<RoaringBitmap>();
for i in 0..1000 / 2 {
assert_eq!(bitmap.remove_range(i * 2..(i + 1) * 2), 2);
}
// remove [1, 3), [3, 5), ..
let mut bitmap = (0..4096 + 1000).collect::<RoaringBitmap>();
for i in 0..1000 / 2 {
assert_eq!(bitmap.remove_range(i * 2 + 1..(i + 1) * 2 + 1), 2);
}
}
#[test]
fn to_bitmap() {
let bitmap = (0..5000).collect::<RoaringBitmap>();
assert_eq!(bitmap.len(), 5000);
for i in 1..5000 {
assert!(bitmap.contains(i));
}
assert!(!bitmap.contains(5001));
}
#[test]
fn to_array() {
let mut bitmap = (0..5000).collect::<RoaringBitmap>();
for i in 3000..5000 {
bitmap.remove(i);
}
assert_eq!(bitmap.len(), 3000);
for i in 0..3000 {
assert!(bitmap.contains(i));
}
for i in 3000..5000 {
assert!(!bitmap.contains(i));
}
}
#[test]
fn optimize_array() {
let mut bitmap = RoaringBitmap::from_iter(0..1000);
assert!(bitmap.optimize());
let mut bitmap = RoaringBitmap::from_iter(0..5000);
assert!(bitmap.optimize());
}
#[test]
fn optimize_bitmap() {
let mut bitmap = RoaringBitmap::from_iter(0..5000);
assert!(bitmap.optimize());
}
#[test]
fn remove_run_compression() {
let mut bitmap = RoaringBitmap::from_iter(0..5000);
assert!(bitmap.optimize());
assert!(bitmap.remove_run_compression());
}
#[test]
fn optimize_run() {
let mut bitmap = RoaringBitmap::from_iter(0..1000);
assert!(bitmap.optimize());
// Calling optimize a second time should return false as no changes will be made
assert!(!bitmap.optimize());
}
|
