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require 'cases/helper'
require 'models/topic'
require 'models/reply'
require 'models/category'
require 'models/categorization'
class CounterCacheTest < ActiveRecord::TestCase
fixtures :topics, :categories, :categorizations
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 "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
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