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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2019 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicyTest do
   6   use Pleroma.DataCase
   7   import Pleroma.Factory
   8
   9   import Pleroma.Web.ActivityPub.MRF.HellthreadPolicy
  10
  11   setup do
  12     user = insert(:user)
  13
  14     message = %{
  15       "actor" => user.ap_id,
  16       "cc" => [user.follower_address],
  17       "type" => "Create",
  18       "to" => [
  19         "https://www.w3.org/ns/activitystreams#Public",
  20         "https://instance.tld/users/user1",
  21         "https://instance.tld/users/user2",
  22         "https://instance.tld/users/user3"
  23       ]
  24     }
  25
  26     [user: user, message: message]
  27   end
  28
  29   clear_config(:mrf_hellthread)
  30
  31   describe "reject" do
  32     test "rejects the message if the recipient count is above reject_threshold", %{
  33       message: message
  34     } do
  35       Pleroma.Config.put([:mrf_hellthread], %{delist_threshold: 0, reject_threshold: 2})
  36
  37       {:reject, nil} = filter(message)
  38     end
  39
  40     test "does not reject the message if the recipient count is below reject_threshold", %{
  41       message: message
  42     } do
  43       Pleroma.Config.put([:mrf_hellthread], %{delist_threshold: 0, reject_threshold: 3})
  44
  45       assert {:ok, ^message} = filter(message)
  46     end
  47   end
  48
  49   describe "delist" do
  50     test "delists the message if the recipient count is above delist_threshold", %{
  51       user: user,
  52       message: message
  53     } do
  54       Pleroma.Config.put([:mrf_hellthread], %{delist_threshold: 2, reject_threshold: 0})
  55
  56       {:ok, message} = filter(message)
  57       assert user.follower_address in message["to"]
  58       assert "https://www.w3.org/ns/activitystreams#Public" in message["cc"]
  59     end
  60
  61     test "does not delist the message if the recipient count is below delist_threshold", %{
  62       message: message
  63     } do
  64       Pleroma.Config.put([:mrf_hellthread], %{delist_threshold: 4, reject_threshold: 0})
  65
  66       assert {:ok, ^message} = filter(message)
  67     end
  68   end
  69
  70   test "excludes follower collection and public URI from threshold count", %{message: message} do
  71     Pleroma.Config.put([:mrf_hellthread], %{delist_threshold: 0, reject_threshold: 3})
  72
  73     assert {:ok, ^message} = filter(message)
  74   end
  75 end