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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Users::UpdateTodoCountCacheService do
describe '#execute' do
let_it_be(:user1) { create(:user) }
let_it_be(:user2) { create(:user) }
let_it_be(:todo1) { create(:todo, user: user1, state: :done) }
let_it_be(:todo2) { create(:todo, user: user1, state: :done) }
let_it_be(:todo3) { create(:todo, user: user1, state: :pending) }
let_it_be(:todo4) { create(:todo, user: user2, state: :done) }
let_it_be(:todo5) { create(:todo, user: user2, state: :pending) }
let_it_be(:todo6) { create(:todo, user: user2, state: :pending) }
it 'updates the todos_counts for users', :use_clean_rails_memory_store_caching do
Rails.cache.write(['users', user1.id, 'todos_done_count'], 0)
Rails.cache.write(['users', user1.id, 'todos_pending_count'], 0)
Rails.cache.write(['users', user2.id, 'todos_done_count'], 0)
Rails.cache.write(['users', user2.id, 'todos_pending_count'], 0)
expect { described_class.new([user1, user2]).execute }
.to change(user1, :todos_done_count).from(0).to(2)
.and change(user1, :todos_pending_count).from(0).to(1)
.and change(user2, :todos_done_count).from(0).to(1)
.and change(user2, :todos_pending_count).from(0).to(2)
Todo.delete_all
expect { described_class.new([user1, user2]).execute }
.to change(user1, :todos_done_count).from(2).to(0)
.and change(user1, :todos_pending_count).from(1).to(0)
.and change(user2, :todos_done_count).from(1).to(0)
.and change(user2, :todos_pending_count).from(2).to(0)
end
it 'avoids N+1 queries' do
control_count = ActiveRecord::QueryRecorder.new { described_class.new([user1]).execute }.count
expect { described_class.new([user1, user2]).execute }.not_to exceed_query_limit(control_count)
end
it 'executes one query per batch of users' do
stub_const("#{described_class}::QUERY_BATCH_SIZE", 1)
expect(ActiveRecord::QueryRecorder.new { described_class.new([user1]).execute }.count).to eq(1)
expect(ActiveRecord::QueryRecorder.new { described_class.new([user1, user2]).execute }.count).to eq(2)
end
it 'sets the cache expire time to the users count_cache_validity_period' do
allow(user1).to receive(:count_cache_validity_period).and_return(1.minute)
allow(user2).to receive(:count_cache_validity_period).and_return(1.hour)
expect(Rails.cache).to receive(:write).with(['users', user1.id, anything], anything, expires_in: 1.minute).twice
expect(Rails.cache).to receive(:write).with(['users', user2.id, anything], anything, expires_in: 1.hour).twice
described_class.new([user1, user2]).execute
end
end
end
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