1 files changed, 25 insertions, 0 deletions
diff --git a/tests/run.lua b/tests/run.lua
index 6244677..034d037 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -6297,6 +6297,31 @@ test("Full finalization removes owned registrations and window overlays", functi
   same(0, #state.finalizers)
 end)
 
+test("Full finalization cancels the active highlight timer", function()
+  local state, transitions = fresh_sequence_state()
+  local host = MemoryHost.new()
+  local feedback = feedback_service.new({
+    host = host,
+    transitions = transitions,
+  })
+  local timer = host:start_timer(25, function() end)
+  transitions:SetHighlightTimer(timer)
+
+  local cleanup = feedback:full_finalize("window-1")
+
+  same(timer, cleanup.highlight_timer)
+  same(nil, state.highlight_timer)
+  falsy(host:timers()[timer].active)
+  local stopped
+  for _, operation in ipairs(host:operations()) do
+    if operation.operation == "stop_timer" and operation.identity == timer then
+      stopped = operation
+    end
+  end
+  truthy(stopped ~= nil)
+  truthy(stopped.stopped)
+end)
+
 for _, item in ipairs(tests) do
   local ok, failure = xpcall(item.body, debug.traceback)
   if not ok then