Roll back feedback when finalizer setup fails

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/run.lua b/tests/run.lua
index 131086f..8b29fd3 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -6298,6 +6298,32 @@ test("Persistent feedback reuses the movement TargetPlan", function()
   end, "reuse the movement TargetPlan")
 end)
 
+test("Persistent creation rolls back an unowned overlay", function()
+  local state = fresh_sequence_state()
+  local host = MemoryHost.new({ buffer_lines = { "ax" } })
+  host.register_events = function()
+    error("event registration failed", 0)
+  end
+  local feedback = feedback_service.new(host)
+  local shared_target = target_plan.build(target("x"), matching_policy())
+  local movement = motion_plan.build(shared_target, "f")
+
+  fails(function()
+    feedback:request_persistent({
+      context = "n",
+      anchor = domain.Position.new(1, 1),
+      target_plan = shared_target,
+      motion_plan = movement,
+      window = "window-1",
+    })
+  end, "event registration failed")
+
+  same(0, #state.target_overlays)
+  same(0, #state.finalizers)
+  same(0, map_size(host:highlights()))
+  same(0, #feedback:persistent_requests())
+end)
+
 test("Persistent feedback uses its selected descriptor and endpoint policy", function()
   fresh_sequence_state()
   local feedback = feedback_service.new(MemoryHost.new())