test(selection): cover quick click boxes and intentional held lasso

src/app/automation.rs

@@ -3552,7 +3552,17 @@ mod tests {
                 path[0].0, path[0].1,
             )));
             let _ = app.update(Message::ViewportLeftPress);
-            std::thread::sleep(std::time::Duration::from_millis(180));
+            // Deterministically simulate an intentional hold-to-lasso.
+            // A fast click+move must no longer activate a lasso just
+            // because the cursor crossed the old 24 px shortcut.
+            app.tabs[i]
+                .scene
+                .selection
+                .borrow_mut()
+                .input
+                .left_press_time = Some(
+                iced::time::Instant::now() - std::time::Duration::from_millis(260),
+            );
             for &(x, y) in &path {
                 let _ = app.update(Message::ViewportMove(iced::Point::new(x, y)));
             }
@@ -3586,6 +3596,32 @@ mod tests {
         }
     }
 
+    #[test]
+    fn fast_click_move_release_arms_a_box_at_the_actual_press_location() {
+        use crate::app::Message;
+
+        let mut app = OpenCADStudio::new_for_test();
+        app.automation_op(r#"{"op":"new"}"#);
+        let i = app.active_tab;
+        app.pick_drag_rect = false;
+        app.tabs[i].scene.selection.borrow_mut().view.vp_size = (800.0, 600.0);
+
+        let pressed = iced::Point::new(100.0, 180.0);
+        let moved = iced::Point::new(450.0, 350.0);
+        let _ = app.update(Message::ViewportMove(pressed));
+        let _ = app.update(Message::ViewportLeftPress);
+        let _ = app.update(Message::ViewportMove(moved));
+        {
+            let sel = app.tabs[i].scene.selection.borrow();
+            assert!(!sel.input.left_dragging, "fast first click must win over lasso");
+            assert!(!sel.gesture.poly_active, "the lasso must not arm");
+        }
+        let _ = app.update(Message::ViewportLeftRelease);
+        let sel = app.tabs[i].scene.selection.borrow();
+        assert_eq!(sel.gesture.box_anchor, Some(pressed));
+        assert!(!sel.gesture.poly_active);
+    }
+
     #[test]
     fn pickadd_command_flips_flag() {
         let mut app = OpenCADStudio::new_for_test();