Push.ImplTest: Fix tests

test/pleroma/web/push/impl_test.exs

@@ -5,10 +5,12 @@
 defmodule Pleroma.Web.Push.ImplTest do
   use Pleroma.DataCase, async: true
 
+  import Mox
   import Pleroma.Factory
 
   alias Pleroma.Notification
   alias Pleroma.Object
+  alias Pleroma.UnstubbedConfigMock, as: ConfigMock
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.CommonAPI
@@ -257,6 +259,9 @@ test "builds content for chat messages with no content" do
         filename: "an_image.jpg"
       }
 
+      ConfigMock
+      |> stub_with(Pleroma.Test.StaticConfig)
+
       {:ok, upload} = ActivityPub.upload(file, actor: user.ap_id)
 
       {:ok, chat} = CommonAPI.post_chat_message(user, recipient, nil, media_id: upload.id)