Test Process and Allocation stale gestures after real Text Apply

crates/oa-desktop/src/app/allocation_drag_tests/group.rs

@@ -190,6 +190,165 @@ fn exact_history(
     assert!(!app.document.can_redo());
 }
 
+#[test]
+fn completed_text_apply_rejects_old_allocation_packets_without_retiring_a_new_drag() {
+    for layer in [Layer::Oa, Layer::Sa] {
+        let mut g = group(layer);
+        select(&mut g.f.app, &[g.f.node, g.yn]);
+        let before = g.f.app.document.snapshot();
+        assert!(!g.f.app.document.can_undo());
+        let from = node_point(&g.f.app, g.f.node);
+        let mut old_canvas = CanvasState::default();
+        let old = begin(&mut g.f.app, &mut old_canvas, from);
+        assert!(g.f.app.allocation_drag.active.is_some());
+        let location = g.f.app.document.compiled().index.declarations[&g.f.work].clone();
+        let original = &before.bundle.files[&location.path];
+        let quoted_name = format!("\"{}\"", g.f.app.project().elements[&g.f.work].name);
+        assert_eq!(original.matches(quoted_name.as_str()).count(), 1);
+        let edited = original.replace(quoted_name.as_str(), "\"Changed through Text\"");
+        let mut expected = before.decoded.project.clone();
+        expected.elements.get_mut(&g.f.work).unwrap().name = "Changed through Text".into();
+        let mut expected_bundle = before.bundle.clone();
+        expected_bundle
+            .files
+            .insert(location.path.clone(), edited.clone());
+
+        let _ = g.f.app.update(Message::Page(Page::Text));
+        assert!(g.f.app.allocation_drag.active.is_none());
+        let _ = g.f.app.update(Message::SourceFile(location.path));
+        let _ =
+            g.f.app
+                .update(Message::SourceEdit(text_editor::Action::SelectAll));
+        let _ =
+            g.f.app
+                .update(Message::SourceEdit(text_editor::Action::Edit(
+                    text_editor::Edit::Paste(Arc::new(edited.clone())),
+                )));
+        assert!(g.f.app.source_dirty());
+        assert_eq!(g.f.app.source_editor.text(), edited);
+        assert!(Arc::ptr_eq(&before, &g.f.app.document.snapshot()));
+        let _ = g.f.app.update(Message::ApplySource);
+        assert!(!g.f.app.source_dirty(), "{}", g.f.app.status);
+        assert_eq!(g.f.app.project(), &expected);
+        assert_eq!(g.f.app.document.bundle(), &expected_bundle);
+
+        let _ = g.f.app.update(Message::Page(Page::Diagram));
+        assert_eq!(g.f.app.active_diagram, Some(g.f.diagram));
+        select(&mut g.f.app, &[g.f.node, g.yn]);
+        let from = node_point(&g.f.app, g.f.node);
+        let to = from + Vector::new(1400., 0.);
+        let mut current_canvas = CanvasState::default();
+        let current = begin(&mut g.f.app, &mut current_canvas, from);
+        assert_ne!(current.token, old.token);
+        assert_ne!(current.stamp.context, old.stamp.context);
+        move_pointer(&mut g.f.app, &mut current_canvas, to);
+        let preview =
+            g.f.app
+                .allocation_drag
+                .preview
+                .as_ref()
+                .expect(&g.f.app.status)
+                .clone();
+        let Candidate::Assignment(plan) = &preview.candidate else {
+            panic!("the current gesture must be a real group assignment");
+        };
+        assert_eq!(plan.changed_count(), 2);
+        let accepted = g.f.app.document.snapshot();
+        let revision = g.f.app.document.revision();
+        let held = selection(&g.f.app);
+        let selected = g.f.app.multiselect_snapshot().unwrap();
+        let workspace = g.f.app.source_workspace.bundle();
+        let editor = g.f.app.source_editor.text();
+        let camera = (
+            g.f.app.zoom,
+            g.f.app.pan,
+            g.f.app.fit_to_view,
+            g.f.app.canvas_size,
+        );
+        let epochs = (
+            g.f.app.canvas_epoch,
+            g.f.app.camera_epoch,
+            g.f.app.allocation_drag.epoch,
+        );
+        let draft =
+            g.f.app
+                .draft
+                .as_ref()
+                .map(|d| serde_json::to_value(d.recovery_snapshot()).unwrap());
+        let form = g.f.app.behavior.recovery_snapshot();
+        let status = g.f.app.status.clone();
+        let pending_reveal = g.f.app.pending_diagram_reveal.clone();
+        let arrange = g.f.app.allocation_drag.arrange_next;
+        // An idle obsolete press intentionally reports a stale-view explanation.
+        // With a newer real gesture active, both old packets must be fully inert.
+        for event in [
+            Event::Press(old.clone()),
+            Event::Release(old.stamp, old.token, Some(to)),
+        ] {
+            let _ = g.f.app.update(Message::WorkDrag(event));
+            assert!(Arc::ptr_eq(&accepted, &g.f.app.document.snapshot()));
+            assert_eq!(g.f.app.project(), &expected);
+            assert_eq!(g.f.app.document.bundle(), &expected_bundle);
+            assert_eq!(g.f.app.document.revision(), revision);
+            assert_eq!(selection(&g.f.app), held);
+            assert_eq!(g.f.app.multiselect_snapshot(), Some(selected.clone()));
+            assert!(Arc::ptr_eq(
+                &g.f.app.allocation_drag.active.as_ref().unwrap().press,
+                &current
+            ));
+            assert!(Arc::ptr_eq(
+                g.f.app.allocation_drag.preview.as_ref().unwrap(),
+                &preview
+            ));
+            assert_eq!(g.f.app.source_workspace.bundle(), workspace);
+            assert_eq!(g.f.app.source_editor.text(), editor);
+            assert_eq!(
+                (
+                    g.f.app.zoom,
+                    g.f.app.pan,
+                    g.f.app.fit_to_view,
+                    g.f.app.canvas_size
+                ),
+                camera
+            );
+            assert_eq!(
+                (
+                    g.f.app.canvas_epoch,
+                    g.f.app.camera_epoch,
+                    g.f.app.allocation_drag.epoch
+                ),
+                epochs
+            );
+            assert_eq!(
+                g.f.app
+                    .draft
+                    .as_ref()
+                    .map(|d| serde_json::to_value(d.recovery_snapshot()).unwrap()),
+                draft
+            );
+            assert_eq!(g.f.app.behavior.recovery_snapshot(), form);
+            assert_eq!(g.f.app.pending_diagram_reveal, pending_reveal);
+            assert_eq!(g.f.app.allocation_drag.arrange_next, arrange);
+            assert_eq!(g.f.app.status, status);
+            assert!(!g.f.app.source_dirty());
+            assert!(g.f.app.document.can_undo());
+            assert!(!g.f.app.document.can_redo());
+        }
+        // The current gesture remains only a preview. History contains solely
+        // the accepted text rename, never either stale assignment packet.
+        let _ = g.f.app.update(Message::Undo);
+        assert_eq!(g.f.app.project(), &before.decoded.project);
+        assert_eq!(g.f.app.document.bundle(), &before.bundle);
+        assert!(!g.f.app.document.can_undo());
+        assert!(g.f.app.document.can_redo());
+        let _ = g.f.app.update(Message::Redo);
+        assert_eq!(g.f.app.project(), &expected);
+        assert_eq!(g.f.app.document.bundle(), &expected_bundle);
+        assert!(g.f.app.document.can_undo());
+        assert!(!g.f.app.document.can_redo());
+    }
+}
+
 #[test]
 fn group_assignment_split_rebuild_preserves_primary_and_commits_one_complete_candidate() {
     for layer in [Layer::Oa, Layer::Sa] {