discourse/spec/serializers/topic_list_serializer_spec.rb

# frozen_string_literal: true

RSpec.describe TopicListSerializer do
  fab!(:user)

  let(:topic) { Fabricate(:topic).tap { |t| t.allowed_user_ids = [t.user_id] } }

  it "should return the right payload" do
    topic_list = TopicList.new(nil, user, [topic])

    serialized = described_class.new(topic_list, scope: Guardian.new(user)).as_json

    expect(serialized[:users].first[:id]).to eq(topic.user_id)
    expect(serialized[:primary_groups]).to eq([])
    expect(serialized[:topic_list][:topics].first[:id]).to eq(topic.id)
  end
end