require 'rails_helper' describe TopicList do let!(:topic) { t = Fabricate(:topic) t.allowed_user_ids = [t.user.id] t } let(:user) { topic.user } let(:topic_list) { TopicList.new("liked", user, [topic]) } before do TopicList.preloaded_custom_fields.clear end after do TopicList.preloaded_custom_fields.clear end describe ".preloaded_custom_fields" do it "should return a unique set of values" do TopicList.preloaded_custom_fields << "test" TopicList.preloaded_custom_fields << "test" TopicList.preloaded_custom_fields << "apple" expect(TopicList.preloaded_custom_fields).to eq(Set.new(%w{test apple})) end end context "preload" do it "allows preloading of data" do preloaded_topic = false preloader = lambda do |topics, topic_list| expect(TopicList === topic_list).to eq(true) expect(topics.length).to eq(1) preloaded_topic = true end TopicList.on_preload(&preloader) topic_list.topics expect(preloaded_topic).to eq(true) TopicList.cancel_preload(&preloader) end end describe '#top_tags' do it 'should return the right tags' do tag = Fabricate(:tag, topics: [topic]) other_tag = Fabricate(:tag, topics: [topic], name: "use-anywhere") output = [tag.name, other_tag.name] expect(topic_list.top_tags.sort).to eq(output.sort) end describe 'when there are tags restricted to a category' do let!(:category) { Fabricate(:category) } let!(:topic) { Fabricate(:topic, category: category) } let!(:other_topic) { Fabricate(:topic) } # uncategorized let!(:tag) { Fabricate(:tag, topics: [topic], categories: [category], name: "category-tag") } let!(:other_tag) { Fabricate(:tag, topics: [topic], name: "use-anywhere") } let(:topic_list) { TopicList.new('latest', topic.user, [topic], category: category.id, category_id: category.id) } it 'should return tags used in the category' do expect(topic_list.top_tags).to eq([tag.name, other_tag.name].sort) end it "with no category, should return all tags" do expect(TopicList.new('latest', other_topic.user, [other_topic]).top_tags.sort).to eq([tag.name, other_tag.name].sort) end it "with another category with no tags, should return no tags" do other_category = Fabricate(:category) topic3 = Fabricate(:topic, category: other_category) list = TopicList.new('latest', topic3.user, [topic3], category: other_category.id, category_id: other_category.id) expect(list.top_tags).to be_empty end end end end