activitypub: implement IR-level considerations for Listen activities

test/web/activity_pub/activity_pub_test.exs

@@ -257,6 +257,42 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
     end
   end
 
+  describe "listen activities" do
+    test "does not increase user note count" do
+      user = insert(:user)
+
+      {:ok, activity} =
+        ActivityPub.listen(%{
+          to: ["https://www.w3.org/ns/activitystreams#Public"],
+          actor: user,
+          context: "",
+          object: %{
+            "actor" => user.ap_id,
+            "to" => ["https://www.w3.org/ns/activitystreams#Public"],
+            "artist" => "lain",
+            "title" => "lain radio episode 1",
+            "length" => 180_000,
+            "type" => "Audio"
+          }
+        })
+
+      assert activity.actor == user.ap_id
+
+      user = User.get_cached_by_id(user.id)
+      assert user.info.note_count == 0
+    end
+
+    test "can be fetched into a timeline" do
+      _listen_activity_1 = insert(:listen)
+      _listen_activity_2 = insert(:listen)
+      _listen_activity_3 = insert(:listen)
+
+      timeline = ActivityPub.fetch_activities([], %{"type" => ["Listen"]})
+
+      assert length(timeline) == 3
+    end
+  end
+
   describe "create activities" do
     test "removes doubled 'to' recipients" do
       user = insert(:user)