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use rayon::prelude::*;
fn check<I>(iter: I)
where
I: ParallelIterator + Clone,
I::Item: std::fmt::Debug + PartialEq,
{
let a: Vec<_> = iter.clone().collect();
let b: Vec<_> = iter.collect();
assert_eq!(a, b);
}
#[test]
fn clone_binary_heap() {
use std::collections::BinaryHeap;
let heap: BinaryHeap<_> = (0..1000).collect();
check(heap.par_iter());
check(heap.into_par_iter());
}
#[test]
fn clone_btree_map() {
use std::collections::BTreeMap;
let map: BTreeMap<_, _> = (0..1000).enumerate().collect();
check(map.par_iter());
}
#[test]
fn clone_btree_set() {
use std::collections::BTreeSet;
let set: BTreeSet<_> = (0..1000).collect();
check(set.par_iter());
}
#[test]
fn clone_hash_map() {
use std::collections::HashMap;
let map: HashMap<_, _> = (0..1000).enumerate().collect();
check(map.par_iter());
}
#[test]
fn clone_hash_set() {
use std::collections::HashSet;
let set: HashSet<_> = (0..1000).collect();
check(set.par_iter());
}
#[test]
fn clone_linked_list() {
use std::collections::LinkedList;
let list: LinkedList<_> = (0..1000).collect();
check(list.par_iter());
check(list.into_par_iter());
}
#[test]
fn clone_vec_deque() {
use std::collections::VecDeque;
let deque: VecDeque<_> = (0..1000).collect();
check(deque.par_iter());
check(deque.into_par_iter());
}
#[test]
fn clone_option() {
let option = Some(0);
check(option.par_iter());
check(option.into_par_iter());
}
#[test]
fn clone_result() {
let result = Ok::<_, ()>(0);
check(result.par_iter());
check(result.into_par_iter());
}
#[test]
fn clone_range() {
check((0..1000).into_par_iter());
}
#[test]
fn clone_range_inclusive() {
check((0..=1000).into_par_iter());
}
#[test]
fn clone_str() {
let s = include_str!("clones.rs");
check(s.par_chars());
check(s.par_lines());
check(s.par_split('\n'));
check(s.par_split_terminator('\n'));
check(s.par_split_whitespace());
}
#[test]
fn clone_vec() {
let v: Vec<_> = (0..1000).collect();
check(v.par_iter());
check(v.par_chunks(42));
check(v.par_chunks_exact(42));
check(v.par_rchunks(42));
check(v.par_rchunks_exact(42));
check(v.par_windows(42));
check(v.par_split(|x| x % 3 == 0));
check(v.into_par_iter());
}
#[test]
fn clone_array() {
let a = [0i32; 100];
check(a.into_par_iter());
}
#[test]
fn clone_adaptors() {
let v: Vec<_> = (0..1000).map(Some).collect();
check(v.par_iter().chain(&v));
check(v.par_iter().cloned());
check(v.par_iter().copied());
check(v.par_iter().enumerate());
check(v.par_iter().filter(|_| true));
check(v.par_iter().filter_map(|x| *x));
check(v.par_iter().flat_map(|x| *x));
check(v.par_iter().flat_map_iter(|x| *x));
check(v.par_iter().flatten());
check(v.par_iter().flatten_iter());
check(v.par_iter().with_max_len(1).fold(|| 0, |x, _| x));
check(v.par_iter().with_max_len(1).fold_with(0, |x, _| x));
check(v.par_iter().with_max_len(1).fold_chunks(1, || 0, |x, _| x));
check(
v.par_iter()
.with_max_len(1)
.fold_chunks_with(1, 0, |x, _| x),
);
check(v.par_iter().with_max_len(1).try_fold(|| 0, |_, &x| x));
check(v.par_iter().with_max_len(1).try_fold_with(0, |_, &x| x));
check(v.par_iter().inspect(|_| ()));
check(v.par_iter().update(|_| ()));
check(v.par_iter().interleave(&v));
check(v.par_iter().interleave_shortest(&v));
check(v.par_iter().intersperse(&None));
check(v.par_iter().chunks(3));
check(v.par_iter().map(|x| x));
check(v.par_iter().map_with(0, |_, x| x));
check(v.par_iter().map_init(|| 0, |_, x| x));
check(v.par_iter().panic_fuse());
check(v.par_iter().positions(|_| true));
check(v.par_iter().rev());
check(v.par_iter().skip(1));
check(v.par_iter().take(1));
check(v.par_iter().cloned().while_some());
check(v.par_iter().with_max_len(1));
check(v.par_iter().with_min_len(1));
check(v.par_iter().zip(&v));
check(v.par_iter().zip_eq(&v));
check(v.par_iter().step_by(2));
}
#[test]
fn clone_empty() {
check(rayon::iter::empty::<i32>());
}
#[test]
fn clone_once() {
check(rayon::iter::once(10));
}
#[test]
fn clone_repeat() {
let x: Option<i32> = None;
check(rayon::iter::repeat(x).while_some());
check(rayon::iter::repeatn(x, 1000));
}
#[test]
fn clone_splitter() {
check(rayon::iter::split(0..1000, |x| (x, None)));
}
#[test]
fn clone_multizip() {
let v: &Vec<_> = &(0..1000).collect();
check((v,).into_par_iter());
check((v, v).into_par_iter());
check((v, v, v).into_par_iter());
check((v, v, v, v).into_par_iter());
check((v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v, v, v, v, v, v).into_par_iter());
check((v, v, v, v, v, v, v, v, v, v, v, v).into_par_iter());
}