Tweaks to clear_config calls in tests in order to prevent side effects on config during test suite execution.

test/web/activity_pub/activity_pub_test.exs

@@ -1224,6 +1224,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
   end
 
   describe "deletion" do
+    clear_config([:instance, :rewrite_policy])
+
     test "it creates a delete activity and deletes the original object" do
       note = insert(:note_activity)
       object = Object.normalize(note)
@@ -1327,11 +1329,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
     end
 
     test "it passes delete activity through MRF before deleting the object" do
-      rewrite_policy = Pleroma.Config.get([:instance, :rewrite_policy])
       Pleroma.Config.put([:instance, :rewrite_policy], Pleroma.Web.ActivityPub.MRF.DropPolicy)
 
-      on_exit(fn -> Pleroma.Config.put([:instance, :rewrite_policy], rewrite_policy) end)
-
       note = insert(:note_activity)
       object = Object.normalize(note)
 
@@ -1396,6 +1395,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
   end
 
   describe "update" do
+    clear_config([:instance, :max_pinned_statuses])
+
     test "it creates an update activity with the new user data" do
       user = insert(:user)
       {:ok, user} = User.ensure_keys_present(user)

test/web/activity_pub/mrf/hellthread_policy_test.exs

@@ -26,6 +26,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicyTest do
     [user: user, message: message]
   end
 
+  clear_config(:mrf_hellthread)
+
   describe "reject" do
     test "rejects the message if the recipient count is above reject_threshold", %{
       message: message

test/web/activity_pub/mrf/keyword_policy_test.exs

@@ -7,6 +7,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicyTest do
 
   alias Pleroma.Web.ActivityPub.MRF.KeywordPolicy
 
+  clear_config(:mrf_keyword)
+
   setup do
     Pleroma.Config.put([:mrf_keyword], %{reject: [], federated_timeline_removal: [], replace: []})
   end

test/web/activity_pub/mrf/mention_policy_test.exs

@@ -7,6 +7,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.MentionPolicyTest do
 
   alias Pleroma.Web.ActivityPub.MRF.MentionPolicy
 
+  clear_config(:mrf_mention)
+
   test "pass filter if allow list is empty" do
     Pleroma.Config.delete([:mrf_mention])
 

test/web/activity_pub/mrf/subchain_policy_test.exs

@@ -14,6 +14,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicyTest do
     "object" => %{"content" => "hi"}
   }
 
+  clear_config([:mrf_subchain, :match_actor])
+
   test "it matches and processes subchains when the actor matches a configured target" do
     Pleroma.Config.put([:mrf_subchain, :match_actor], %{
       ~r/^https:\/\/banned.com/s => [DropPolicy]

test/web/activity_pub/transmogrifier/follow_handling_test.exs

@@ -19,6 +19,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier.FollowHandlingTest do
   end
 
   describe "handle_incoming" do
+    clear_config([:user, :deny_follow_blocked])
+
     test "it works for osada follow request" do
       user = insert(:user)