require 'cases/helper' require 'models/topic' require 'models/car' require 'models/wheel' require 'models/engine' require 'models/reply' require 'models/category' require 'models/categorization' class CounterCacheTest < ActiveRecord::TestCase fixtures :topics, :categories, :categorizations, :cars class ::SpecialTopic < ::Topic has_many :special_replies, :foreign_key => 'parent_id' end class ::SpecialReply < ::Reply belongs_to :special_topic, :foreign_key => 'parent_id', :counter_cache => 'replies_count' end setup do @topic = Topic.find(1) end test "increment counter" do assert_difference '@topic.reload.replies_count' do Topic.increment_counter(:replies_count, @topic.id) end end test "decrement counter" do assert_difference '@topic.reload.replies_count', -1 do Topic.decrement_counter(:replies_count, @topic.id) end end test "reset counters" do # throw the count off by 1 Topic.increment_counter(:replies_count, @topic.id) # check that it gets reset assert_difference '@topic.reload.replies_count', -1 do Topic.reset_counters(@topic.id, :replies) end end test "reset counters with string argument" do Topic.increment_counter('replies_count', @topic.id) assert_difference '@topic.reload.replies_count', -1 do Topic.reset_counters(@topic.id, 'replies') end end test "reset counters with modularized and camelized classnames" do special = SpecialTopic.create!(:title => 'Special') SpecialTopic.increment_counter(:replies_count, special.id) assert_difference 'special.reload.replies_count', -1 do SpecialTopic.reset_counters(special.id, :special_replies) end end test "reset counter should with belongs_to which has class_name" do car = cars(:honda) assert_nothing_raised do Car.reset_counters(car.id, :engines) end assert_nothing_raised do Car.reset_counters(car.id, :wheels) end end test "update counter with initial null value" do category = categories(:general) assert_equal 2, category.categorizations.count assert_nil category.categorizations_count Category.update_counters(category.id, :categorizations_count => category.categorizations.count) assert_equal 2, category.reload.categorizations_count end test "update counter for decrement" do assert_difference '@topic.reload.replies_count', -3 do Topic.update_counters(@topic.id, :replies_count => -3) end end test "update counters of multiple records" do t1, t2 = topics(:first, :second) assert_difference ['t1.reload.replies_count', 't2.reload.replies_count'], 2 do Topic.update_counters([t1.id, t2.id], :replies_count => 2) end end end