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require 'rails_helper'
RSpec.describe Trends::Statuses do
subject! { described_class.new(threshold: 5, review_threshold: 10, score_halflife: 8.hours) }
let!(:at_time) { DateTime.new(2021, 11, 14, 10, 15, 0) }
describe 'Trends::Statuses::Query' do
let!(:query) { subject.query }
let!(:today) { at_time }
let!(:status1) { Fabricate(:status, text: 'Foo', trendable: true, created_at: today) }
let!(:status2) { Fabricate(:status, text: 'Bar', trendable: true, created_at: today) }
before do
15.times { reblog(status1, today) }
12.times { reblog(status2, today) }
subject.refresh(today)
end
describe '#filtered_for' do
let(:account) { Fabricate(:account) }
it 'returns a composable query scope' do
expect(query.filtered_for(account)).to be_a Trends::Query
end
it 'filters out blocked accounts' do
account.block!(status1.account)
expect(query.filtered_for(account).to_a).to eq [status2]
end
it 'filters out muted accounts' do
account.mute!(status2.account)
expect(query.filtered_for(account).to_a).to eq [status1]
end
it 'filters out blocked-by accounts' do
status1.account.block!(account)
expect(query.filtered_for(account).to_a).to eq [status2]
end
end
end
describe '#add' do
let(:status) { Fabricate(:status) }
before do
subject.add(status, 1, at_time)
end
it 'records use' do
expect(subject.send(:recently_used_ids, at_time)).to eq [status.id]
end
end
describe '#query' do
it 'returns a composable query scope' do
expect(subject.query).to be_a Trends::Query
end
it 'responds to filtered_for' do
expect(subject.query).to respond_to(:filtered_for)
end
end
describe '#refresh' do
let!(:today) { at_time }
let!(:yesterday) { today - 1.day }
let!(:status1) { Fabricate(:status, text: 'Foo', trendable: true, created_at: yesterday) }
let!(:status2) { Fabricate(:status, text: 'Bar', trendable: true, created_at: today) }
let!(:status3) { Fabricate(:status, text: 'Baz', trendable: true, created_at: today) }
before do
13.times { reblog(status1, today) }
13.times { reblog(status2, today) }
4.times { reblog(status3, today) }
end
context do
before do
subject.refresh(today)
end
it 'calculates and re-calculates scores' do
expect(subject.query.limit(10).to_a).to eq [status2, status1]
end
it 'omits statuses below threshold' do
expect(subject.query.limit(10).to_a).to_not include(status3)
end
end
it 'decays scores' do
subject.refresh(today)
original_score = subject.score(status2.id)
expect(original_score).to be_a Float
subject.refresh(today + subject.options[:score_halflife])
decayed_score = subject.score(status2.id)
expect(decayed_score).to be <= original_score / 2
end
end
def reblog(status, at_time)
reblog = Fabricate(:status, reblog: status, created_at: at_time)
subject.add(status, reblog.account_id, at_time)
end
end
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