Add anonymous and remote participations

test/support/helpers.ex

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+# Portions of this file are derived from Pleroma:
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social>
+# SPDX-License-Identifier: AGPL-3.0-only
+# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/test/support/helpers.ex
+
+defmodule Mobilizon.Tests.Helpers do
+  @moduledoc """
+  Helpers for use in tests.
+  """
+
+  defmacro clear_config(config_path) do
+    quote do
+      clear_config(unquote(config_path)) do
+      end
+    end
+  end
+
+  defmacro clear_config(config_path, do: yield) do
+    quote do
+      setup do
+        initial_setting = Mobilizon.Config.get(unquote(config_path))
+        unquote(yield)
+        on_exit(fn -> Mobilizon.Config.put(unquote(config_path), initial_setting) end)
+        :ok
+      end
+    end
+  end
+
+  defmacro __using__(_opts) do
+    quote do
+      import Mobilizon.Tests.Helpers,
+        only: [
+          clear_config: 1,
+          clear_config: 2
+        ]
+    end
+  end
+end