discourse/spec/models/topic_hot_scores_spec.rb
Sam df8bb947b2
FEATURE: improvements to hot algorithm (#25295)
- Decrease gravity, we come in too hot prioritizing too many new topics
- Remove all muted topics / categories and tags from the hot list
- Punish topics with zero likes in algorithm
2024-01-17 16:12:03 +11:00

59 lines
2.0 KiB
Ruby

# frozen_string_literal: true
RSpec.describe TopicHotScore do
describe ".update_scores" do
fab!(:user)
fab!(:user2) { Fabricate(:user) }
it "can correctly update like counts and post counts and account for activity" do
freeze_time
TopicHotScore.create!(topic_id: -1, score: 0.0, recent_likes: 99, recent_posters: 0)
old_post = Fabricate(:post, created_at: 10.months.ago)
topic = old_post.topic
new_reply = Fabricate(:post, user: user, topic: topic, created_at: 4.hours.ago)
newer_reply = Fabricate(:post, user: user2, topic: topic, created_at: 1.hour.ago)
Fabricate(:post, user: user2, topic: topic, created_at: 1.minute.ago)
freeze_time(1.year.ago)
PostActionCreator.like(user, old_post)
freeze_time(1.year.from_now)
PostActionCreator.like(user2, new_reply)
PostActionCreator.like(user, newer_reply)
TopicHotScore.update_scores
hot_scoring = TopicHotScore.find_by(topic_id: topic.id)
expect(hot_scoring.recent_likes).to eq(2)
expect(hot_scoring.recent_posters).to eq(2)
expect(hot_scoring.recent_first_bumped_at).to eq_time(new_reply.created_at)
expect(hot_scoring.score).to be_within(0.001).of(1.219)
expect(TopicHotScore.find_by(topic_id: -1).recent_likes).to eq(0)
end
it "can correctly set scores for topics" do
freeze_time
topic1 = Fabricate(:topic, like_count: 3, created_at: 1.hour.ago)
topic2 = Fabricate(:topic, like_count: 10, created_at: 3.hour.ago)
TopicHotScore.update_scores
expect(TopicHotScore.find_by(topic_id: topic1.id).score).to be_within(0.001).of(0.535)
expect(TopicHotScore.find_by(topic_id: topic2.id).score).to be_within(0.001).of(1.304)
freeze_time(2.hours.from_now)
TopicHotScore.update_scores
expect(TopicHotScore.find_by(topic_id: topic1.id).score).to be_within(0.001).of(0.289)
expect(TopicHotScore.find_by(topic_id: topic2.id).score).to be_within(0.001).of(0.871)
end
end
end