Tests from main: the world state is a Result here

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

crates/engine/src/schema/component_tests.rs

@@ -102,7 +102,7 @@ fn sketches_move_to_the_part_whose_face_they_are_on() {
     run(&mut s, "solid.box", json!({"length":10,"width":10,"height":10,"body_name":"Base"}));
     run(&mut s, "occurrence.move", json!({"occurrence":occurrence,"translate":[30,0,0]}));
     run(&mut s, "component.activate", json!({"component":0}));
-    let world = s.world_state();
+    let world = s.world_state().unwrap();
     let base = world.body("Base").unwrap();
     let top = base.body.faces(0.01).unwrap().into_iter().max_by(|a, b| a.centroid.z.total_cmp(&b.centroid.z)).unwrap();
     let pick = json!({"body": base.name, "index": top.index, "face": [top.centroid.x, top.centroid.y, top.centroid.z], "path": [occurrence]});
@@ -110,7 +110,7 @@ fn sketches_move_to_the_part_whose_face_they_are_on() {
     sketch_square(&mut s);
     let on_xy = run(&mut s, "sketch.create", json!({"name":"OnXY","plane":"XY"}))["sketch"].as_u64().unwrap();
     sketch_square(&mut s);
-    let world_plane = |s: &Session| s.world_state().sketch(on_face).unwrap().plane;
+    let world_plane = |s: &Session| s.world_state().unwrap().sketch(on_face).unwrap().plane;
     let before = world_plane(&s);
     assert_eq!(s.doc.feature(on_face).unwrap().component, 0);
     let doc_before = s.doc.to_json();

crates/ui-egui/src/occurrence_ui_tests.rs

@@ -569,7 +569,7 @@ fn dragging_an_occurrence_row_onto_the_top_of_a_sibling_reorders_them() {
 fn sketches_folder_moves_its_sketches_to_the_part_they_are_on() {
     let (mut h, component, occurrence) = crate::test_support::component_box();
     h.app.session.auto_project = false;
-    let world = h.app.session.world_state();
+    let world = h.app.session.world_state().unwrap();
     let body = world.bodies.iter().find(|b| h.app.session.doc.model_body_component(b) == component).unwrap().name.clone();
     let face = world.body(&body).unwrap().body.faces(0.01).unwrap().into_iter().max_by(|a, b| a.centroid.z.total_cmp(&b.centroid.z)).unwrap();
     let pick = json!({"face":[face.centroid.x,face.centroid.y,face.centroid.z],"body":body,"index":face.index,"path":[occurrence]});

crates/ui-egui/src/scale_tests.rs

@@ -628,7 +628,7 @@ fn many_selected_bodies_hover_cost() {
         }
         None => grid(1440),
     };
-    let st = h.app.session.world_state();
+    let st = h.app.session.world_state().unwrap();
     st.warm_meshes(|| true);
     for b in &st.bodies {
         let _ = b.display_plan();

crates/ui-egui/src/sketch_dims_tests.rs

@@ -190,7 +190,7 @@ fn an_ellipse_takes_a_typed_major_and_minor_radius() {
     assert_focus(&h, 0);
     type_value(&mut h, "8");
     h.step(&json!({"key": "Enter"})).unwrap();
-    let state = h.app.session.world_state();
+    let state = h.app.session.world_state().unwrap();
     let sk = &state.sketch(h.app.session.active_sketch.unwrap()).unwrap().sketch;
     assert_eq!(sk.curves.len(), 1, "{:?}", h.app.status);
     let CurveKind::Ellipse { c, m, r } = sk.curves[0].kind.clone() else { panic!("{:?}", sk.curves[0].kind) };

crates/ui-egui/src/viewport.rs

@@ -9737,7 +9737,7 @@ mod tests {
         app.viewport.gpu = Some(GpuTarget { format: egui_wgpu::wgpu::TextureFormat::Rgba8Unorm, depth: None, samples: 1, tess: true, oit: false });
         app.run("solid.box", json!({"length": 4, "width": 4, "height": 4, "center": [40, 0, 2], "operation": "new", "name": "Seed"})).unwrap();
         app.run("solid.pattern.rectangular", json!({"features": ["Seed"], "dir1": [1, 0, 0], "count1": 6, "spacing1": 6, "name": "Row"})).unwrap();
-        let st = app.session.world_state();
+        let st = app.session.world_state().unwrap();
         assert_eq!(st.bodies.len(), 7);
         let mut by_name = BodiesByName::new(&st);
         for b in &st.bodies {