Introduce group basic federation, event new page and notifications

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

test/federation/activity_pub/refresher_test.exs

@@ -0,0 +1,39 @@
+defmodule Mobilizon.Federation.ActivityPub.RefresherTest do
+  use Mobilizon.DataCase
+
+  alias Mobilizon.Actors.{Actor, Member}
+  alias Mobilizon.Federation.ActivityPub
+  alias Mobilizon.Federation.ActivityPub.Refresher
+  alias Mobilizon.Web.ActivityPub.ActorView
+  import Mobilizon.Factory
+  import Mock
+
+  test "refreshes a members collection" do
+    %Actor{members_url: members_url, url: group_url} = group = insert(:group)
+    %Actor{url: actor_url} = actor = insert(:actor)
+    %Member{} = insert(:member, parent: group, actor: actor, role: :member)
+
+    data =
+      ActorView.render("members.json", %{group: group, actor_applicant: actor}) |> Jason.encode!()
+
+    with_mocks([
+      {HTTPoison, [],
+       [
+         get!: fn ^members_url, _headers, _options ->
+           %HTTPoison.Response{status_code: 200, body: data}
+         end
+       ]},
+      {ActivityPub, [],
+       [
+         get_or_fetch_actor_by_url: fn url ->
+           case url do
+             ^actor_url -> {:ok, actor}
+             ^group_url -> {:ok, group}
+           end
+         end
+       ]}
+    ]) do
+      assert :ok == Refresher.fetch_collection(group.members_url, actor)
+    end
+  end
+end