diff --git a/test/support/conn_case.ex b/test/support/conn_case.ex
index a7cebf971..02f49c590 100644
--- a/test/support/conn_case.ex
+++ b/test/support/conn_case.ex
@@ -136,6 +136,8 @@ defp json_response_and_validate_schema(conn, _status) do
       })
     end
 
+    Pleroma.DataCase.stub_pipeline()
+
     {:ok, conn: Phoenix.ConnTest.build_conn()}
   end
 end
diff --git a/test/support/data_case.ex b/test/support/data_case.ex
index a3ce9e282..5c657c1d9 100644
--- a/test/support/data_case.ex
+++ b/test/support/data_case.ex
@@ -83,9 +83,25 @@ def clear_cachex do
       })
     end
 
+    stub_pipeline()
+
     :ok
   end
 
+  def stub_pipeline do
+    Mox.stub_with(Pleroma.Web.ActivityPub.SideEffectsMock, Pleroma.Web.ActivityPub.SideEffects)
+
+    Mox.stub_with(
+      Pleroma.Web.ActivityPub.ObjectValidatorMock,
+      Pleroma.Web.ActivityPub.ObjectValidator
+    )
+
+    Mox.stub_with(Pleroma.Web.ActivityPub.MRFMock, Pleroma.Web.ActivityPub.MRF)
+    Mox.stub_with(Pleroma.Web.ActivityPub.ActivityPubMock, Pleroma.Web.ActivityPub.ActivityPub)
+    Mox.stub_with(Pleroma.Web.FederatorMock, Pleroma.Web.Federator)
+    Mox.stub_with(Pleroma.ConfigMock, Pleroma.Config)
+  end
+
   def ensure_local_uploader(context) do
     test_uploader = Map.get(context, :uploader, Pleroma.Uploaders.Local)
     uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])