diff --git a/config/test.exs b/config/test.exs
index c4fd5c52f..a85881592 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -124,6 +124,14 @@
 
 config :pleroma, :mrf, policies: []
 
+config :pleroma, :pipeline,
+  object_validator: Pleroma.Web.ActivityPub.ObjectValidatorMock,
+  mrf: Pleroma.Web.ActivityPub.MRFMock,
+  activity_pub: Pleroma.Web.ActivityPub.ActivityPubMock,
+  side_effects: Pleroma.Web.ActivityPub.SideEffectsMock,
+  federator: Pleroma.Web.FederatorMock,
+  config: Pleroma.ConfigMock
+
 config :pleroma, :cachex, provider: Pleroma.CachexMock
 
 if File.exists?("./config/test.secret.exs") do
diff --git a/lib/pleroma/config.ex b/lib/pleroma/config.ex
index 97f877595..1ee4777f6 100644
--- a/lib/pleroma/config.ex
+++ b/lib/pleroma/config.ex
@@ -2,15 +2,24 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
+defmodule Pleroma.Config.Getting do
+  @callback get(any()) :: any()
+  @callback get(any(), any()) :: any()
+end
+
 defmodule Pleroma.Config do
+  @behaviour Pleroma.Config.Getting
   defmodule Error do
     defexception [:message]
   end
 
+  @impl true
   def get(key), do: get(key, nil)
 
+  @impl true
   def get([key], default), do: get(key, default)
 
+  @impl true
   def get([_ | _] = path, default) do
     case fetch(path) do
       {:ok, value} -> value
@@ -18,6 +27,7 @@ def get([_ | _] = path, default) do
     end
   end
 
+  @impl true
   def get(key, default) do
     Application.get_env(:pleroma, key, default)
   end
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 1c91bc074..0f839af10 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -2,6 +2,10 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
+defmodule Pleroma.Web.ActivityPub.ActivityPub.Persisting do
+  @callback persist(map(), keyword()) :: {:ok, Activity.t() | Object.t()}
+end
+
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.Activity
   alias Pleroma.Activity.Ir.Topics
@@ -32,6 +36,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   require Logger
   require Pleroma.Constants
 
+  @behaviour Pleroma.Web.ActivityPub.ActivityPub.Persisting
+
   defp get_recipients(%{"type" => "Create"} = data) do
     to = Map.get(data, "to", [])
     cc = Map.get(data, "cc", [])
@@ -85,13 +91,14 @@ defp increase_replies_count_if_reply(%{
   defp increase_replies_count_if_reply(_create_data), do: :noop
 
   @object_types ~w[ChatMessage Question Answer Audio Video Event Article]
-  @spec persist(map(), keyword()) :: {:ok, Activity.t() | Object.t()}
+  @impl true
   def persist(%{"type" => type} = object, meta) when type in @object_types do
     with {:ok, object} <- Object.create(object) do
       {:ok, object, meta}
     end
   end
 
+  @impl true
   def persist(object, meta) do
     with local <- Keyword.fetch!(meta, :local),
          {recipients, _, _} <- get_recipients(object),
diff --git a/lib/pleroma/web/activity_pub/mrf.ex b/lib/pleroma/web/activity_pub/mrf.ex
index 6e73b2f22..3de21b219 100644
--- a/lib/pleroma/web/activity_pub/mrf.ex
+++ b/lib/pleroma/web/activity_pub/mrf.ex
@@ -2,9 +2,15 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
+defmodule Pleroma.Web.ActivityPub.MRF.PipelineFiltering do
+  @callback pipeline_filter(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
+end
+
 defmodule Pleroma.Web.ActivityPub.MRF do
   require Logger
 
+  @behaviour Pleroma.Web.ActivityPub.MRF.PipelineFiltering
+
   @mrf_config_descriptions [
     %{
       group: :pleroma,
@@ -70,6 +76,7 @@ def filter(policies, %{} = message) do
 
   def filter(%{} = object), do: get_policies() |> filter(object)
 
+  @impl true
   def pipeline_filter(%{} = message, meta) do
     object = meta[:object_data]
     ap_id = message["object"]
diff --git a/lib/pleroma/web/activity_pub/object_validator.ex b/lib/pleroma/web/activity_pub/object_validator.ex
index bd0a2a8dc..a731c5a1c 100644
--- a/lib/pleroma/web/activity_pub/object_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validator.ex
@@ -2,6 +2,10 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
+defmodule Pleroma.Web.ActivityPub.ObjectValidator.Validating do
+  @callback validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
+end
+
 defmodule Pleroma.Web.ActivityPub.ObjectValidator do
   @moduledoc """
   This module is responsible for validating an object (which can be an activity)
@@ -9,6 +13,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do
   the system.
   """
 
+  @behaviour Pleroma.Web.ActivityPub.ObjectValidator.Validating
+
   alias Pleroma.Activity
   alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Object
@@ -32,7 +38,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do
   alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
   alias Pleroma.Web.ActivityPub.ObjectValidators.UpdateValidator
 
-  @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
+  @impl true
   def validate(object, meta)
 
   def validate(%{"type" => type} = object, meta)
diff --git a/lib/pleroma/web/activity_pub/pipeline.ex b/lib/pleroma/web/activity_pub/pipeline.ex
index 98c32a42b..2715b94d4 100644
--- a/lib/pleroma/web/activity_pub/pipeline.ex
+++ b/lib/pleroma/web/activity_pub/pipeline.ex
@@ -14,12 +14,19 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.Federator
 
+  @side_effects Config.get([:pipeline, :side_effects], SideEffects)
+  @federator Config.get([:pipeline, :federator], Federator)
+  @object_validator Config.get([:pipeline, :object_validator], ObjectValidator)
+  @mrf Config.get([:pipeline, :mrf], MRF)
+  @activity_pub Config.get([:pipeline, :activity_pub], ActivityPub)
+  @config Config.get([:pipeline, :config], Config)
+
   @spec common_pipeline(map(), keyword()) ::
           {:ok, Activity.t() | Object.t(), keyword()} | {:error, any()}
   def common_pipeline(object, meta) do
     case Repo.transaction(fn -> do_common_pipeline(object, meta) end) do
       {:ok, {:ok, activity, meta}} ->
-        SideEffects.handle_after_transaction(meta)
+        @side_effects.handle_after_transaction(meta)
         {:ok, activity, meta}
 
       {:ok, value} ->
@@ -35,13 +42,13 @@ def common_pipeline(object, meta) do
 
   def do_common_pipeline(object, meta) do
     with {_, {:ok, validated_object, meta}} <-
-           {:validate_object, ObjectValidator.validate(object, meta)},
+           {:validate_object, @object_validator.validate(object, meta)},
          {_, {:ok, mrfd_object, meta}} <-
-           {:mrf_object, MRF.pipeline_filter(validated_object, meta)},
+           {:mrf_object, @mrf.pipeline_filter(validated_object, meta)},
          {_, {:ok, activity, meta}} <-
-           {:persist_object, ActivityPub.persist(mrfd_object, meta)},
+           {:persist_object, @activity_pub.persist(mrfd_object, meta)},
          {_, {:ok, activity, meta}} <-
-           {:execute_side_effects, SideEffects.handle(activity, meta)},
+           {:execute_side_effects, @side_effects.handle(activity, meta)},
          {_, {:ok, _}} <- {:federation, maybe_federate(activity, meta)} do
       {:ok, activity, meta}
     else
@@ -54,7 +61,7 @@ defp maybe_federate(%Object{}, _), do: {:ok, :not_federated}
 
   defp maybe_federate(%Activity{} = activity, meta) do
     with {:ok, local} <- Keyword.fetch(meta, :local) do
-      do_not_federate = meta[:do_not_federate] || !Config.get([:instance, :federating])
+      do_not_federate = meta[:do_not_federate] || !@config.get([:instance, :federating])
 
       if !do_not_federate and local and not Visibility.is_local_public?(activity) do
         activity =
@@ -64,7 +71,7 @@ defp maybe_federate(%Activity{} = activity, meta) do
             activity
           end
 
-        Federator.publish(activity)
+        @federator.publish(activity)
         {:ok, :federated}
       else
         {:ok, :not_federated}
diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex
index c947e2c24..cb54eb89a 100644
--- a/lib/pleroma/web/activity_pub/side_effects.ex
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@@ -2,6 +2,11 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
+defmodule Pleroma.Web.ActivityPub.SideEffects.Handling do
+  @callback handle(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
+  @callback handle_after_transaction(map()) :: map()
+end
+
 defmodule Pleroma.Web.ActivityPub.SideEffects do
   @moduledoc """
   This module looks at an inserted object and executes the side effects that it
@@ -29,11 +34,15 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
 
   @cachex Pleroma.Config.get([:cachex, :provider], Cachex)
 
+  @behaviour Pleroma.Web.ActivityPub.SideEffects.Handling
+
+  @impl true
   def handle(object, meta \\ [])
 
   # Task this handles
   # - Follows
   # - Sends a notification
+  @impl true
   def handle(
         %{
           data: %{
@@ -61,6 +70,7 @@ def handle(
   # - Rejects all existing follow activities for this person
   # - Updates the follow state
   # - Dismisses notification
+  @impl true
   def handle(
         %{
           data: %{
@@ -87,6 +97,7 @@ def handle(
   # - Follows if possible
   # - Sends a notification
   # - Generates accept or reject if appropriate
+  @impl true
   def handle(
         %{
           data: %{
@@ -128,6 +139,7 @@ def handle(
 
   # Tasks this handles:
   # - Unfollow and block
+  @impl true
   def handle(
         %{data: %{"type" => "Block", "object" => blocked_user, "actor" => blocking_user}} =
           object,
@@ -146,6 +158,7 @@ def handle(
   #
   # For a local user, we also get a changeset with the full information, so we
   # can update non-federating, non-activitypub settings as well.
+  @impl true
   def handle(%{data: %{"type" => "Update", "object" => updated_object}} = object, meta) do
     if changeset = Keyword.get(meta, :user_update_changeset) do
       changeset
@@ -164,6 +177,7 @@ def handle(%{data: %{"type" => "Update", "object" => updated_object}} = object,
   # Tasks this handles:
   # - Add like to object
   # - Set up notification
+  @impl true
   def handle(%{data: %{"type" => "Like"}} = object, meta) do
     liked_object = Object.get_by_ap_id(object.data["object"])
     Utils.add_like_to_object(object, liked_object)
@@ -181,6 +195,7 @@ def handle(%{data: %{"type" => "Like"}} = object, meta) do
   # - Increase replies count
   # - Set up ActivityExpiration
   # - Set up notifications
+  @impl true
   def handle(%{data: %{"type" => "Create"}} = activity, meta) do
     with {:ok, object, meta} <- handle_object_creation(meta[:object_data], meta),
          %User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
@@ -209,6 +224,7 @@ def handle(%{data: %{"type" => "Create"}} = activity, meta) do
   # - Add announce to object
   # - Set up notification
   # - Stream out the announce
+  @impl true
   def handle(%{data: %{"type" => "Announce"}} = object, meta) do
     announced_object = Object.get_by_ap_id(object.data["object"])
     user = User.get_cached_by_ap_id(object.data["actor"])
@@ -226,6 +242,7 @@ def handle(%{data: %{"type" => "Announce"}} = object, meta) do
     {:ok, object, meta}
   end
 
+  @impl true
   def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, meta) do
     with undone_object <- Activity.get_by_ap_id(undone_object),
          :ok <- handle_undoing(undone_object) do
@@ -236,6 +253,7 @@ def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, met
   # Tasks this handles:
   # - Add reaction to object
   # - Set up notification
+  @impl true
   def handle(%{data: %{"type" => "EmojiReact"}} = object, meta) do
     reacted_object = Object.get_by_ap_id(object.data["object"])
     Utils.add_emoji_reaction_to_object(object, reacted_object)
@@ -252,6 +270,7 @@ def handle(%{data: %{"type" => "EmojiReact"}} = object, meta) do
   # - Reduce the user note count
   # - Reduce the reply count
   # - Stream out the activity
+  @impl true
   def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object, meta) do
     deleted_object =
       Object.normalize(deleted_object, false) ||
@@ -297,6 +316,7 @@ def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object,
   end
 
   # Nothing to do
+  @impl true
   def handle(object, meta) do
     {:ok, object, meta}
   end
@@ -441,6 +461,7 @@ defp add_notifications(meta, notifications) do
     |> Keyword.put(:notifications, notifications ++ existing)
   end
 
+  @impl true
   def handle_after_transaction(meta) do
     meta
     |> send_notifications()
diff --git a/lib/pleroma/web/federator.ex b/lib/pleroma/web/federator.ex
index 130654145..186861fd9 100644
--- a/lib/pleroma/web/federator.ex
+++ b/lib/pleroma/web/federator.ex
@@ -2,6 +2,10 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
+defmodule Pleroma.Web.Federator.Publishing do
+  @callback publish(map()) :: any()
+end
+
 defmodule Pleroma.Web.Federator do
   alias Pleroma.Activity
   alias Pleroma.Object.Containment
@@ -15,6 +19,8 @@ defmodule Pleroma.Web.Federator do
 
   require Logger
 
+  @behaviour Pleroma.Web.Federator.Publishing
+
   @doc """
   Returns `true` if the distance to target object does not exceed max configured value.
   Serves to prevent fetching of very long threads, especially useful on smaller instances.
@@ -39,10 +45,12 @@ def incoming_ap_doc(params) do
     ReceiverWorker.enqueue("incoming_ap_doc", %{"params" => params})
   end
 
+  @impl true
   def publish(%{id: "pleroma:fakeid"} = activity) do
     perform(:publish, activity)
   end
 
+  @impl true
   def publish(activity) do
     PublisherWorker.enqueue("publish", %{"activity_id" => activity.id})
   end
diff --git a/test/pleroma/web/activity_pub/pipeline_test.exs b/test/pleroma/web/activity_pub/pipeline_test.exs
index 210a06563..d0e3fb347 100644
--- a/test/pleroma/web/activity_pub/pipeline_test.exs
+++ b/test/pleroma/web/activity_pub/pipeline_test.exs
@@ -3,14 +3,35 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.PipelineTest do
-  use Pleroma.DataCase
+  use Pleroma.DataCase, async: true
 
-  import Mock
+  import Mox
   import Pleroma.Factory
 
+  alias Pleroma.Web.ActivityPub.ActivityPubMock
+  alias Pleroma.Web.ActivityPub.MRFMock
+  alias Pleroma.Web.ActivityPub.ObjectValidatorMock
+  alias Pleroma.Web.ActivityPub.SideEffectsMock
+  alias Pleroma.Web.FederatorMock
+  alias Pleroma.ConfigMock
+
+  setup :verify_on_exit!
+
   describe "common_pipeline/2" do
     setup do
-      clear_config([:instance, :federating], true)
+      ObjectValidatorMock
+      |> expect(:validate, fn o, m -> {:ok, o, m} end)
+
+      MRFMock
+      |> expect(:pipeline_filter, fn o, m -> {:ok, o, m} end)
+
+      ActivityPubMock
+      |> expect(:persist, fn o, m -> {:ok, o, m} end)
+
+      SideEffectsMock
+      |> expect(:handle, fn o, m -> {:ok, o, m} end)
+      |> expect(:handle_after_transaction, fn m -> m end)
+
       :ok
     end
 
@@ -21,159 +42,53 @@ test "when given an `object_data` in meta, Federation will receive a the origina
 
       activity_with_object = %{activity | data: Map.put(activity.data, "object", object)}
 
-      with_mocks([
-        {Pleroma.Web.ActivityPub.ObjectValidator, [], [validate: fn o, m -> {:ok, o, m} end]},
-        {
-          Pleroma.Web.ActivityPub.MRF,
-          [],
-          [pipeline_filter: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.ActivityPub,
-          [],
-          [persist: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.SideEffects,
-          [],
-          [
-            handle: fn o, m -> {:ok, o, m} end,
-            handle_after_transaction: fn m -> m end
-          ]
-        },
-        {
-          Pleroma.Web.Federator,
-          [],
-          [publish: fn _o -> :ok end]
-        }
-      ]) do
-        assert {:ok, ^activity, ^meta} =
-                 Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
+      FederatorMock
+      |> expect(:publish, fn ^activity_with_object -> :ok end)
 
-        assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
-        refute called(Pleroma.Web.Federator.publish(activity))
-        assert_called(Pleroma.Web.Federator.publish(activity_with_object))
-      end
+      ConfigMock
+      |> expect(:get, fn [:instance, :federating] -> true end)
+
+      assert {:ok, ^activity, ^meta} =
+               Pleroma.Web.ActivityPub.Pipeline.common_pipeline(
+                 activity,
+                 meta
+               )
     end
 
     test "it goes through validation, filtering, persisting, side effects and federation for local activities" do
       activity = insert(:note_activity)
       meta = [local: true]
 
-      with_mocks([
-        {Pleroma.Web.ActivityPub.ObjectValidator, [], [validate: fn o, m -> {:ok, o, m} end]},
-        {
-          Pleroma.Web.ActivityPub.MRF,
-          [],
-          [pipeline_filter: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.ActivityPub,
-          [],
-          [persist: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.SideEffects,
-          [],
-          [
-            handle: fn o, m -> {:ok, o, m} end,
-            handle_after_transaction: fn m -> m end
-          ]
-        },
-        {
-          Pleroma.Web.Federator,
-          [],
-          [publish: fn _o -> :ok end]
-        }
-      ]) do
-        assert {:ok, ^activity, ^meta} =
-                 Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
+      FederatorMock
+      |> expect(:publish, fn ^activity -> :ok end)
 
-        assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
-        assert_called(Pleroma.Web.Federator.publish(activity))
-      end
+      ConfigMock
+      |> expect(:get, fn [:instance, :federating] -> true end)
+
+      assert {:ok, ^activity, ^meta} =
+               Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
     end
 
     test "it goes through validation, filtering, persisting, side effects without federation for remote activities" do
       activity = insert(:note_activity)
       meta = [local: false]
 
-      with_mocks([
-        {Pleroma.Web.ActivityPub.ObjectValidator, [], [validate: fn o, m -> {:ok, o, m} end]},
-        {
-          Pleroma.Web.ActivityPub.MRF,
-          [],
-          [pipeline_filter: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.ActivityPub,
-          [],
-          [persist: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.SideEffects,
-          [],
-          [handle: fn o, m -> {:ok, o, m} end, handle_after_transaction: fn m -> m end]
-        },
-        {
-          Pleroma.Web.Federator,
-          [],
-          []
-        }
-      ]) do
-        assert {:ok, ^activity, ^meta} =
-                 Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
+      ConfigMock
+      |> expect(:get, fn [:instance, :federating] -> true end)
 
-        assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
-      end
+      assert {:ok, ^activity, ^meta} =
+               Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
     end
 
     test "it goes through validation, filtering, persisting, side effects without federation for local activities if federation is deactivated" do
-      clear_config([:instance, :federating], false)
-
       activity = insert(:note_activity)
       meta = [local: true]
 
-      with_mocks([
-        {Pleroma.Web.ActivityPub.ObjectValidator, [], [validate: fn o, m -> {:ok, o, m} end]},
-        {
-          Pleroma.Web.ActivityPub.MRF,
-          [],
-          [pipeline_filter: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.ActivityPub,
-          [],
-          [persist: fn o, m -> {:ok, o, m} end]
-        },
-        {
-          Pleroma.Web.ActivityPub.SideEffects,
-          [],
-          [handle: fn o, m -> {:ok, o, m} end, handle_after_transaction: fn m -> m end]
-        },
-        {
-          Pleroma.Web.Federator,
-          [],
-          []
-        }
-      ]) do
-        assert {:ok, ^activity, ^meta} =
-                 Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
+      ConfigMock
+      |> expect(:get, fn [:instance, :federating] -> false end)
 
-        assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
-        assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
-      end
+      assert {:ok, ^activity, ^meta} =
+               Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
     end
   end
 end
diff --git a/test/support/mocks.ex b/test/support/mocks.ex
index d790553cd..a600a6458 100644
--- a/test/support/mocks.ex
+++ b/test/support/mocks.ex
@@ -3,3 +3,23 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 Mox.defmock(Pleroma.CachexMock, for: Pleroma.Caching)
+
+Mox.defmock(Pleroma.Web.ActivityPub.ObjectValidatorMock,
+  for: Pleroma.Web.ActivityPub.ObjectValidator.Validating
+)
+
+Mox.defmock(Pleroma.Web.ActivityPub.MRFMock,
+  for: Pleroma.Web.ActivityPub.MRF.PipelineFiltering
+)
+
+Mox.defmock(Pleroma.Web.ActivityPub.ActivityPubMock,
+  for: Pleroma.Web.ActivityPub.ActivityPub.Persisting
+)
+
+Mox.defmock(Pleroma.Web.ActivityPub.SideEffectsMock,
+  for: Pleroma.Web.ActivityPub.SideEffects.Handling
+)
+
+Mox.defmock(Pleroma.Web.FederatorMock, for: Pleroma.Web.Federator.Publishing)
+
+Mox.defmock(Pleroma.ConfigMock, for: Pleroma.Config.Getting)