b53ea0b30a
Squash of 2 work commits (Sep 9–12): 8d851ef platform: per-draw alpha blend, macOS waker, texture lifetime, file drop cc2fa8f platform: the Metal display link is gone; the hang line prints its tick deficit; hidden instances refuse App Nap Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
39 lines
1.2 KiB
Rust
39 lines
1.2 KiB
Rust
//! First `SignalToUI::set_ui_signal` from a worker in a headless process
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//! must not create the platform event loop (on macOS: NSApplication).
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//!
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//! `Cx::new` installs the real UI waker. Headless tests currently work around
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//! this with `install_ui_waker(None)` after `Cx::new`; this test does not.
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use std::sync::mpsc;
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use std::thread;
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use std::time::{Duration, Instant};
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use makepad_platform::{Cx, SignalToUI};
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#[test]
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fn first_set_ui_signal_from_worker_is_under_50ms() {
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let _cx = Cx::new(Box::new(|_, _| {}));
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let (tx, rx) = mpsc::channel();
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thread::spawn(move || {
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let start = Instant::now();
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SignalToUI::set_ui_signal();
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let _ = tx.send(start.elapsed());
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});
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let elapsed = match rx.recv_timeout(Duration::from_secs(10)) {
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Ok(elapsed) => elapsed,
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Err(_) => {
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println!("first set_ui_signal latency: timed out after 10000.0 ms");
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panic!(
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"first set_ui_signal from a worker did not return within 10 s"
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);
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}
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};
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let ms = elapsed.as_secs_f64() * 1000.0;
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println!("first set_ui_signal latency: {ms:.1} ms");
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assert!(
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ms < 50.0,
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"first set_ui_signal from a worker took {ms:.1} ms, expected < 50 ms"
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);
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}
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