PERF: make score calculator cheaper when site has long topics

spec/components/score_calculator_spec.rb

@@ -49,6 +49,19 @@ describe ScoreCalculator do
       expect(topic.has_summary).to eq(false)
     end
 
+    it "respects the min_topic_age" do
+      topic.update_columns(has_summary: true, bumped_at: 1.month.ago)
+      ScoreCalculator.new(reads: 3).calculate(min_topic_age: 20.days.ago)
+      expect(topic.has_summary).to eq(true)
+    end
+
+    it "respects the max_topic_length" do
+      Fabricate(:post, topic_id: topic.id)
+      topic.update_columns(has_summary: true)
+      ScoreCalculator.new(reads: 3).calculate(max_topic_length: 1)
+      expect(topic.has_summary).to eq(true)
+    end
+
     it "won't update the site settings when the site settings don't match" do
       SiteSetting.expects(:summary_likes_required).returns(0)
       SiteSetting.expects(:summary_posts_required).returns(1)