Add container_labelled_by test

Cargo.lock

@@ -2558,11 +2558,12 @@ dependencies = [
 
 [[package]]
 name = "kurbo"
-version = "0.11.1"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89234b2cc610a7dd927ebde6b41dd1a5d4214cffaef4cf1fb2195d592f92518f"
+checksum = "c62026ae44756f8a599ba21140f350303d4f08dcdcc71b5ad9c9bb8128c13c62"
 dependencies = [
  "arrayvec",
+ "euclid",
  "smallvec",
 ]
 
@@ -4327,7 +4328,7 @@ version = "0.15.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68c7541fff44b35860c1a7a47a7cadf3e4a304c457b58f9870d9706ece028afc"
 dependencies = [
- "kurbo 0.11.1",
+ "kurbo 0.11.3",
  "siphasher",
 ]
 
@@ -4663,9 +4664,9 @@ dependencies = [
 
 [[package]]
 name = "ttf-parser"
-version = "0.25.0"
+version = "0.25.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5902c5d130972a0000f60860bfbf46f7ca3db5391eddfedd1b8728bd9dc96c0e"
+checksum = "d2df906b07856748fa3f6e0ad0cbaa047052d4a7dd609e231c4f72cee8c36f31"
 dependencies = [
  "core_maths",
 ]
@@ -4829,7 +4830,7 @@ dependencies = [
  "flate2",
  "fontdb",
  "imagesize",
- "kurbo 0.11.1",
+ "kurbo 0.11.3",
  "log",
  "pico-args",
  "roxmltree",

crates/egui_kittest/src/snapshot.rs

@@ -695,8 +695,8 @@ impl<State> Harness<'_, State> {
 
     /// Render a snapshot, save it to a temp file and open it in the default image viewer.
     ///
-    /// This method is marked as deprecated to trigger errors in CI (so that it's not accidentally
-    /// committed).
+    /// This method is marked as deprecated to trigger errors in CI (so that it's usages are not
+    /// accidentally committed). It's fine to use it for debugging.
     #[deprecated = "Only for debugging, don't commit this."]
     #[cfg(not(target_arch = "wasm32"))]
     pub fn debug_open_snapshot(&mut self) {

crates/egui_kittest/tests/tests.rs

@@ -1,6 +1,6 @@
-use egui::{Modifiers, ScrollArea, Vec2, include_image};
+use egui::{include_image, Modifiers, ScrollArea, Vec2};
 use egui_kittest::{Harness, SnapshotResults};
-use kittest::Queryable as _;
+use kittest::{NodeT, Queryable as _};
 
 #[test]
 fn test_shrink() {
@@ -214,3 +214,31 @@ fn test_remove_cursor() {
         "The button appearance should change"
     );
 }
+
+#[test]
+fn test_container_labelled_by() {
+    let mut harness = Harness::new_ui(|ui| {
+        _ = ui.button("Duplicate");
+
+        _ = ui.group(|ui| {
+            let group_label = ui.label("Labelled inside");
+            ui.response().labelled_by(group_label.id);
+            ui.label("Duplicate");
+        });
+
+        let group_label = ui.label("Labelled outside");
+        _ = ui
+            .group(|ui| {
+                ui.label("Duplicate");
+            })
+            .response
+            .labelled_by(group_label.id);
+    });
+
+    let group = harness.get_by_role_and_label(egui::accesskit::Role::GenericContainer, "Labelled inside");
+    group.get_by_label("Duplicate");
+
+    // TODO: This panics, we should make it work somehow
+    let group = harness.get_by_role_and_label(egui::accesskit::Role::GenericContainer, "Labelled outside");
+    group.get_by_label("Duplicate");
+}