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b8ae372e48
This removes two minor OnceLock tests which test private methods. The rest of the tests should be more than enough to catch mistakes in those private methods. Also makes ReentrantLock::try_lock public. And finally it makes the mpmc tests actually run.
36 lines
960 B
Rust
36 lines
960 B
Rust
use std::sync::mpsc::{TryRecvError, channel};
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use std::sync::{Arc, Barrier};
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use std::thread;
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#[test]
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#[cfg_attr(any(target_os = "emscripten", target_os = "wasi"), ignore)] // no threads
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fn test_barrier() {
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const N: usize = 10;
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let barrier = Arc::new(Barrier::new(N));
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let (tx, rx) = channel();
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for _ in 0..N - 1 {
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let c = barrier.clone();
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let tx = tx.clone();
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thread::spawn(move || {
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tx.send(c.wait().is_leader()).unwrap();
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});
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}
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// At this point, all spawned threads should be blocked,
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// so we shouldn't get anything from the port
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assert!(matches!(rx.try_recv(), Err(TryRecvError::Empty)));
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let mut leader_found = barrier.wait().is_leader();
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// Now, the barrier is cleared and we should get data.
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for _ in 0..N - 1 {
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if rx.recv().unwrap() {
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assert!(!leader_found);
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leader_found = true;
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}
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}
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assert!(leader_found);
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}
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