use rayon_core::ThreadPoolBuilder; | |
use std::error::Error; | |
#[test] | |
fn double_init_fail() { | |
let result1 = ThreadPoolBuilder::new().build_global(); | |
assert_eq!(result1.unwrap(), ()); | |
let err = ThreadPoolBuilder::new().build_global().unwrap_err(); | |
assert!(err.description() == "The global thread pool has already been initialized."); | |
} |