Resolve some test failures.

lib/pleroma/web/twitter_api/representers/activity_representer.ex

@@ -207,7 +207,7 @@ def to_map(
       "activity_type" => "post",
       "possibly_sensitive" => possibly_sensitive,
       "visibility" => Pleroma.Web.MastodonAPI.StatusView.get_visibility(object),
-      "summary" => object["summary"]
+      "summary" => HTML.strip_tags(object["summary"]) |> Formatter.emojify(object["emoji"])
     }
   end
 

test/web/twitter_api/views/activity_view_test.exs

@@ -73,6 +73,7 @@ test "a create activity with a note" do
       "repeat_num" => 0,
       "repeated" => false,
       "statusnet_conversation_id" => convo_id,
+      "summary" => "",
       "statusnet_html" =>
         "Hey <span><a data-user=\"#{other_user.id}\" href=\"#{other_user.ap_id}\">@<span>shp</span></a></span>!",
       "tags" => [],
@@ -80,7 +81,6 @@ test "a create activity with a note" do
       "uri" => activity.data["object"]["id"],
       "user" => UserView.render("show.json", %{user: user}),
       "visibility" => "direct",
-      "summary" => nil
     }
 
     assert result == expected