require "isolation/abstract_unit" module ApplicationTests class MockLogger def method_missing(*args) @logged ||= [] @logged << args.last end def logged @logged.compact.map { |l| l.to_s.strip } end end class NotificationsTest < Test::Unit::TestCase include ActiveSupport::Testing::Isolation def setup build_app boot_rails end def instrument(*args, &block) ActiveSupport::Notifications.instrument(*args, &block) end def wait ActiveSupport::Notifications.notifier.wait end test "rails log_subscribers are added" do add_to_config <<-RUBY config.colorize_logging = false RUBY require "#{app_path}/config/environment" ActiveRecord::Base.logger = logger = MockLogger.new # Mimic ActiveRecord notifications instrument "active_record.sql", :name => "SQL", :sql => "SHOW tables" wait assert_equal 1, logger.logged.size assert_match /SHOW tables/, logger.logged.last end end end