Tests: the viewer find test waits for results by a deadline, not a frame count

Under a full workspace test run the background find could still be searching after 60 short
frames: 12 of 15 matches were in when the assertion ran. The PAGE re-run had the same race.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

crates/ui-egui/tests/viewer.rs

@@ -108,7 +108,10 @@ fn view_history_select_all_and_find_options() {
     h.state_mut().views[0].open_find();
     h.state_mut().views[0].find.as_mut().unwrap().query = "page".into();
     h.state_mut().views[0].rerun_find();
-    for _ in 0..60 {
+    // Find runs in the background: wait for it by a deadline, not a frame count, which a loaded
+    // machine (the whole workspace testing at once) can use up before the last page is searched.
+    let deadline = std::time::Instant::now() + std::time::Duration::from_secs(20);
+    while std::time::Instant::now() < deadline {
         h.run_steps(2);
         std::thread::sleep(std::time::Duration::from_millis(5));
         if h.state().views[0].find.as_ref().unwrap().matches.len() >= 15 {
@@ -126,7 +129,11 @@ fn view_history_select_all_and_find_options() {
     assert_eq!(h.state().views[0].find.as_ref().unwrap().matches.len(), 0, "\"page\" alone, lower case, appears nowhere");
     h.state_mut().views[0].find.as_mut().unwrap().query = "PAGE".into();
     h.state_mut().views[0].rerun_find();
-    h.run_steps(2);
+    let deadline = std::time::Instant::now() + std::time::Duration::from_secs(20);
+    while std::time::Instant::now() < deadline && h.state().views[0].find.as_ref().unwrap().matches.len() < 5 {
+        h.run_steps(2);
+        std::thread::sleep(std::time::Duration::from_millis(5));
+    }
     assert_eq!(h.state().views[0].find.as_ref().unwrap().matches.len(), 5);
 }