discourse/spec/serializers/topic_list_item_serializer_spec.rb

require 'rails_helper'
require_dependency 'post_action'

describe TopicListItemSerializer do

  it "correctly serializes topic" do
    date = Time.zone.now

    topic = Topic.new
    topic.title = "test"
    topic.created_at = date - 2.minutes
    topic.bumped_at = date
    topic.posters = []
    serialized = TopicListItemSerializer.new(topic, scope: Guardian.new, root: false).as_json

    expect(serialized[:title]).to eq("test")
    expect(serialized[:bumped]).to eq(true)
  end
end