discourse/spec/multisite/distributed_cache_spec.rb

require 'rails_helper'

RSpec.describe 'Multisite SiteSettings' do
  let(:conn) { RailsMultisite::ConnectionManagement }

  before do
    conn.config_filename = "spec/fixtures/multisite/two_dbs.yml"
    conn.load_settings!
    conn.remove_class_variable(:@@current_db)
  end

  after do
    conn.clear_settings!

    [:@@db_spec_cache, :@@host_spec_cache, :@@default_spec].each do |class_variable|
      conn.remove_class_variable(class_variable)
    end

    conn.set_current_db
  end

  def cache(name, namespace: true)
    DistributedCache.new(name, namespace: namespace)
  end

  context 'without namespace' do
    let(:cache1) { cache('test', namespace: false) }

    it 'does not leak state across multisite' do
      cache1['default'] = true

      expect(cache1.hash).to eq('default' => true)

      conn.with_connection('second') do
        message = MessageBus.track_publish(DistributedCache::Manager::CHANNEL_NAME) do
          cache1['second'] = true
        end.first

        expect(message.data[:hash_key]).to eq('test')
        expect(message.data[:op]).to eq(:set)
        expect(message.data[:key]).to eq('second')
        expect(message.data[:value]).to eq(true)
      end

      expect(cache1.hash).to eq('default' => true, 'second' => true)
    end
  end
end