extern crate rayon;
use std::collections::HashSet;
use rayon::*;
use rayon::prelude::*;
#[test]
fn named_threads() {
ThreadPoolBuilder::new()
.thread_name(|i| format!("hello-name-test-{}", i))
.build_global()
.unwrap();
const N: usize = 10000;
let thread_names = (0..N)
.into_par_iter()
.flat_map(|_| ::std::thread::current().name().map(|s| s.to_owned()))
.collect::<HashSet<String>>();
let all_contains_name = thread_names
.iter()
.all(|name| name.starts_with("hello-name-test-"));
assert!(all_contains_name);
}