Remove unused methods (#1730)

* Remove unused method #set_counters_maps from api controller

* Remove unused method #set_account_counters_maps from api controller

* Remove unused method Account#followers_domains

* Remove unused User.prolific scope

* Add mastodon:users:admins task to list all admin emails

* Use interpolated query style in Account.triadic_closures

* Coverage for Account.triadic_closures

1 files changed, 17 insertions, 0 deletions

diff --git a/spec/models/account_spec.rb b/spec/models/account_spec.rb
index 46c1ff63c..c39e7986e 100644
--- a/spec/models/account_spec.rb
+++ b/spec/models/account_spec.rb
@@ -245,6 +245,23 @@ RSpec.describe Account, type: :model do
     end
   end
 
+  describe '.triadic_closures' do
+    it 'finds accounts you dont follow which are followed by accounts you do follow' do
+      me = Fabricate(:account)
+      friend = Fabricate(:account)
+      friends_friend = Fabricate(:account)
+      me.follow!(friend)
+      friend.follow!(friends_friend)
+
+      both_follow = Fabricate(:account)
+      me.follow!(both_follow)
+      friend.follow!(both_follow)
+
+      results = Account.triadic_closures(me)
+      expect(results).to eq [friends_friend]
+    end
+  end
+
   describe '.find_local' do
     before do
       Fabricate(:account, username: 'Alice')