add leniency to expiry

test/pleroma/web/mastodon_api/controllers/filter_controller_test.exs

@@ -67,9 +67,11 @@ test "a filter with expires_in", %{conn: conn, user: user} do
       expires_at =
         NaiveDateTime.utc_now()
         |> NaiveDateTime.add(in_seconds)
-        |> Pleroma.Web.CommonAPI.Utils.to_masto_date()
 
-      assert response["expires_at"] == expires_at
+      assert NaiveDateTime.diff(
+               NaiveDateTime.from_iso8601!(response["expires_at"]),
+               expires_at
+             ) < 5
 
       filter = Filter.get(response["id"], user)