CommonAPI Tests: Check that undoing objects federates them as embeds.

test/web/common_api/common_api_test.exs

@@ -624,6 +624,10 @@ test "unreacting to a status with an emoji" do
       user = insert(:user)
       other_user = insert(:user)
 
+      clear_config([:instance, :federating], true)
+
+      with_mock Pleroma.Web.Federator,
+        publish: fn _ -> nil end do
         {:ok, activity} = CommonAPI.post(other_user, %{status: "cofe"})
         {:ok, reaction} = CommonAPI.react_with_emoji(activity.id, user, "👍")
 
@@ -632,6 +636,15 @@ test "unreacting to a status with an emoji" do
         assert unreaction.data["type"] == "Undo"
         assert unreaction.data["object"] == reaction.data["id"]
         assert unreaction.local
+
+        # On federation, it contains the undone (and deleted) object
+        unreaction_with_object = %{
+          unreaction
+          | data: Map.put(unreaction.data, "object", reaction.data)
+        }
+
+        assert called(Pleroma.Web.Federator.publish(unreaction_with_object))
+      end
     end
 
     test "repeating a status" do