Add more tag weight/more random variant (#6451) [deploy]

app/controllers/stories/feeds_controller.rb

@@ -32,6 +32,8 @@ class Stories::FeedsController < ApplicationController
       feed.mix_default_and_more_random
     when "more_tag_weight"
       feed.more_tag_weight
+    when "more_tag_weight_more_random"
+      feed.more_tag_weight_more_random
     else
       feed.default_home_feed(user_signed_in: true)
     end

app/services/articles/feed.rb

@@ -66,6 +66,13 @@ module Articles
       stories
     end
 
+    def more_tag_weight_more_random
+      @tag_weight = 2
+      @randomness = 7
+      _featured_story, stories = default_home_feed_and_featured_story(user_signed_in: true)
+      stories
+    end
+
     # Test variation: Base half the time, more random other half. Varies on impressions.
     def mix_default_and_more_random
       if rand(2) == 1
@@ -126,7 +133,7 @@ module Articles
 
     def globally_hot_articles(user_signed_in)
       hot_stories = published_articles_by_tag.
-        where("score > ? OR featured = ?", 9, true).
+        where("score > ? OR featured = ?", 8, true).
         order("hotness_score DESC")
       featured_story = hot_stories.where.not(main_image: nil).first
       if user_signed_in

config/field_test.yml

@@ -5,11 +5,13 @@ experiments:
       - more_random
       - more_tag_weight
       - mix_base_more_random
+      - more_tag_weight_more_random
     weights:
-      - 65
+      - 55
       - 10
       - 10
       - 15
+      - 10
     goals:
       - user_creates_comment
       - user_creates_reaction

spec/services/articles/feed_spec.rb

@@ -169,6 +169,16 @@ RSpec.describe Articles::Feed, type: :service do
     end
   end
 
+  describe "#more_tag_weight_more_random" do
+    let!(:new_story) { create(:article, published_at: 10.minutes.ago, score: 10) }
+    let(:stories) { feed.more_tag_weight_more_random }
+
+    it "includes stories from between 2 and 6 hours ago" do
+      expect(stories).not_to include(old_story)
+      expect(stories).to include(new_story)
+    end
+  end
+
   describe "#score_followed_user" do
     context "when article is written by a followed user" do
       before { user.follow(article.user) }