From bbe1a12eeb1b91c843e3b531bd6cd14ed36a7b11 Mon Sep 17 00:00:00 2001
From: RiceDee <345114586+RiceDee@users.noreply.github.com>
Date: Tue, 20 Oct 2026 15:29:27 +1100
Subject: [PATCH] test(ui-egui): idle harness scans system fonts before its
 first frame

---
 crates/ui-egui/src/idle_tests.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/crates/ui-egui/src/idle_tests.rs b/crates/ui-egui/src/idle_tests.rs
index 6ae19546..192073b3 100644
--- a/crates/ui-egui/src/idle_tests.rs
+++ b/crates/ui-egui/src/idle_tests.rs
@@ -26,6 +26,10 @@ pub(crate) struct Harness {
 
 impl Harness {
     pub(crate) fn new(s: Session) -> Self {
+        // The one system font scan bumps the layout generation, which makes the canvas render
+        // again: scanned here, before the first frame, rather than by whichever test happens to
+        // run first while this one waits for idle (#333).
+        figcraft_text::scan_system_fonts();
         Self { ctx: egui::Context::default(), app: FigApp::new(s, Box::new(NoServices)), time: 0.0 }
     }