diff --git a/test/list_test.exs b/test/list_test.exs
index 1909c0cd9..0e72b6660 100644
--- a/test/list_test.exs
+++ b/test/list_test.exs
@@ -113,4 +113,33 @@ test "getting own lists a given user belongs to" do
     assert owned_list in lists_2
     refute not_owned_list in lists_2
   end
+
+  test "get ap_id by user nickname and list id" do
+    nickname = "foo"
+    list_id = 42
+
+    expected = Pleroma.Web.Endpoint.url() <> "/users/#{nickname}/lists/#{list_id}"
+
+    assert Pleroma.List.ap_id(%Pleroma.User{nickname: nickname}, list_id) == expected
+    assert Pleroma.List.ap_id({nickname, list_id}) == expected
+  end
+
+  test "get by ap_id" do
+    user = insert(:user)
+    {:ok, list} = Pleroma.List.create("foo", user)
+    ap_id = Pleroma.List.ap_id(user, list.id)
+
+    assert Pleroma.List.get_by_ap_id(ap_id) == list
+  end
+
+  test "memberships" do
+    user = insert(:user)
+    member = insert(:user)
+    {:ok, list} = Pleroma.List.create("foo", user)
+    {:ok, list} = Pleroma.List.follow(list, member)
+
+    list_ap_id = Pleroma.List.ap_id(user, list.id)
+
+    assert Pleroma.List.memberships(member) == [list_ap_id]
+  end
 end
diff --git a/test/web/activity_pub/activity_pub_test.exs b/test/web/activity_pub/activity_pub_test.exs
index 0f90aa1ac..e38de388b 100644
--- a/test/web/activity_pub/activity_pub_test.exs
+++ b/test/web/activity_pub/activity_pub_test.exs
@@ -1156,6 +1156,20 @@ test "it can create a Flag activity" do
     end
   end
 
+  test "fetch_activities/2 returns activities addressed to a list " do
+    user = insert(:user)
+    member = insert(:user)
+    {:ok, list} = Pleroma.List.create("foo", user)
+    {:ok, list} = Pleroma.List.follow(list, member)
+
+    {:ok, activity} =
+      CommonAPI.post(user, %{"status" => "foobar", "visibility" => "list:#{list.id}"})
+
+    activity = Repo.preload(activity, :bookmark)
+
+    assert ActivityPub.fetch_activities([], %{"user" => user}) == [activity]
+  end
+
   def data_uri do
     File.read!("test/fixtures/avatar_data_uri")
   end
diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index c24b50f8c..e93189df6 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/test/web/activity_pub/transmogrifier_test.exs
@@ -1028,6 +1028,18 @@ test "the directMessage flag is present" do
 
       assert modified["directMessage"] == true
     end
+
+    test "it strips BCC field" do
+      user = insert(:user)
+      {:ok, list} = Pleroma.List.create("foo", user)
+
+      {:ok, activity} =
+        CommonAPI.post(user, %{"status" => "foobar", "visibility" => "list:#{list.id}"})
+
+      {:ok, modified} = Transmogrifier.prepare_outgoing(activity.data)
+
+      assert is_nil(modified["bcc"])
+    end
   end
 
   describe "user upgrade" do
diff --git a/test/web/common_api/common_api_test.exs b/test/web/common_api/common_api_test.exs
index a5b07c446..11f3c8357 100644
--- a/test/web/common_api/common_api_test.exs
+++ b/test/web/common_api/common_api_test.exs
@@ -87,6 +87,19 @@ test "it filters out obviously bad tags when accepting a post as Markdown" do
 
       assert object.data["content"] == "<p><b>2hu</b></p>alert('xss')"
     end
+
+    test "it allows to address a list" do
+      user = insert(:user)
+      {:ok, list} = Pleroma.List.create("foo", user)
+
+      list_ap_id = Pleroma.List.ap_id(user, list.id)
+
+      {:ok, activity} =
+        CommonAPI.post(user, %{"status" => "foobar", "visibility" => "list:#{list.id}"})
+
+      assert activity.data["bcc"] == [list_ap_id]
+      assert activity.recipients == [list_ap_id, user.ap_id]
+    end
   end
 
   describe "reactions" do