require 'spec_helper' require 'suggested_topics_builder' describe SuggestedTopicsBuilder do let(:topic) { Fabricate(:topic) } let(:builder) { SuggestedTopicsBuilder.new(topic) } before do SiteSetting.stubs(:suggested_topics).returns(5) end context "splicing category results" do def fake_topic(topic_id, category_id) build(:topic, id: topic_id, category_id: category_id) end let(:builder) do SuggestedTopicsBuilder.new(fake_topic(1,1)) end it "prioritizes category correctly" do builder.splice_results([fake_topic(2,2)], :high) builder.splice_results([fake_topic(3,1)], :high) builder.splice_results([fake_topic(4,1)], :high) builder.results.map(&:id).should == [3,4,2] # we have 2 items in category 1 builder.category_results_left.should == 3 end it "inserts using default approach for non high priority" do builder.splice_results([fake_topic(2,2)], :high) builder.splice_results([fake_topic(3,1)], :low) builder.results.map(&:id).should == [2,3] end it "inserts multiple results and puts topics in the correct order" do builder.splice_results([fake_topic(2,1), fake_topic(3,2), fake_topic(4,1)], :high) builder.results.map(&:id).should == [2,4,3] end end it "has the correct defaults" do builder.excluded_topic_ids.include?(topic.id).should be_true builder.results_left.should == 5 builder.size.should == 0 builder.should_not be_full end it "returns full correctly" do builder.stubs(:results_left).returns(0) builder.should be_full end context "adding results" do it "adds nothing with nil results" do builder.add_results(nil) builder.results_left.should == 5 builder.size.should == 0 builder.should_not be_full end context "adding topics" do let!(:other_topic) { Fabricate(:topic) } before do # Add all topics builder.add_results(Topic) end it "added the result correctly" do builder.size.should == 1 builder.results_left.should == 4 builder.should_not be_full builder.excluded_topic_ids.include?(topic.id).should be_true builder.excluded_topic_ids.include?(other_topic.id).should be_true end end context "adding topics that are not open" do let!(:archived_topic) { Fabricate(:topic, archived: true)} let!(:closed_topic) { Fabricate(:topic, closed: true)} let!(:invisible_topic) { Fabricate(:topic, visible: false)} it "adds archived and closed, but not invisible topics" do builder.add_results(Topic) builder.size.should == 2 builder.should_not be_full end end context "category definition topics" do let!(:category) { Fabricate(:category) } it "doesn't add a category definition topic" do category.topic_id.should be_present builder.add_results(Topic) builder.size.should == 0 builder.should_not be_full end end end end