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require "cases/helper"
require 'models/post'
require 'models/topic'
require 'models/comment'
require 'models/reply'
require 'models/author'
class NamedScopeTest < ActiveRecord::TestCase
fixtures :posts, :authors, :topics, :comments
def test_implements_enumerable
assert !Topic.find(:all).empty?
assert_equal Topic.find(:all), Topic.base
assert_equal Topic.find(:all), Topic.base.to_a
assert_equal Topic.find(:first), Topic.base.first
assert_equal Topic.find(:all), Topic.base.each { |i| i }
end
def test_found_items_are_cached
Topic.columns
all_posts = Topic.base
assert_queries(1) do
all_posts.collect
all_posts.collect
end
end
def test_reload_expires_cache_of_found_items
all_posts = Topic.base
all_posts.inspect
new_post = Topic.create!
assert !all_posts.include?(new_post)
assert all_posts.reload.include?(new_post)
end
def test_delegates_finds_and_calculations_to_the_base_class
assert !Topic.find(:all).empty?
assert_equal Topic.find(:all), Topic.base.find(:all)
assert_equal Topic.find(:first), Topic.base.find(:first)
assert_equal Topic.count, Topic.base.count
assert_equal Topic.average(:replies_count), Topic.base.average(:replies_count)
end
def test_subclasses_inherit_scopes
assert Topic.scopes.include?(:base)
assert Reply.scopes.include?(:base)
assert_equal Reply.find(:all), Reply.base
end
def test_scopes_with_options_limit_finds_to_those_matching_the_criteria_specified
assert !Topic.find(:all, :conditions => {:approved => true}).empty?
assert_equal Topic.find(:all, :conditions => {:approved => true}), Topic.approved
assert_equal Topic.count(:conditions => {:approved => true}), Topic.approved.count
end
def test_scopes_are_composable
assert_equal (approved = Topic.find(:all, :conditions => {:approved => true})), Topic.approved
assert_equal (replied = Topic.find(:all, :conditions => 'replies_count > 0')), Topic.replied
assert !(approved == replied)
assert !(approved & replied).empty?
assert_equal approved & replied, Topic.approved.replied
end
def test_procedural_scopes
topics_written_before_the_third = Topic.find(:all, :conditions => ['written_on < ?', topics(:third).written_on])
topics_written_before_the_second = Topic.find(:all, :conditions => ['written_on < ?', topics(:second).written_on])
assert_not_equal topics_written_before_the_second, topics_written_before_the_third
assert_equal topics_written_before_the_third, Topic.written_before(topics(:third).written_on)
assert_equal topics_written_before_the_second, Topic.written_before(topics(:second).written_on)
end
def test_extensions
assert_equal 1, Topic.anonymous_extension.one
assert_equal 2, Topic.named_extension.two
end
def test_multiple_extensions
assert_equal 2, Topic.multiple_extensions.extension_two
assert_equal 1, Topic.multiple_extensions.extension_one
end
def test_has_many_associations_have_access_to_named_scopes
assert_not_equal Post.containing_the_letter_a, authors(:david).posts
assert !Post.containing_the_letter_a.empty?
assert_equal authors(:david).posts & Post.containing_the_letter_a, authors(:david).posts.containing_the_letter_a
end
def test_has_many_through_associations_have_access_to_named_scopes
assert_not_equal Comment.containing_the_letter_e, authors(:david).comments
assert !Comment.containing_the_letter_e.empty?
assert_equal authors(:david).comments & Comment.containing_the_letter_e, authors(:david).comments.containing_the_letter_e
end
def test_active_records_have_scope_named__all__
assert !Topic.find(:all).empty?
assert_equal Topic.find(:all), Topic.base
end
def test_active_records_have_scope_named__scoped__
assert !Topic.find(:all, scope = {:conditions => "content LIKE '%Have%'"}).empty?
assert_equal Topic.find(:all, scope), Topic.scoped(scope)
end
def test_proxy_options
expected_proxy_options = { :conditions => { :approved => true } }
assert_equal expected_proxy_options, Topic.approved.proxy_options
end
def test_first_and_last_should_support_find_options
assert_equal Topic.base.first(:order => 'title'), Topic.base.find(:first, :order => 'title')
assert_equal Topic.base.last(:order => 'title'), Topic.base.find(:last, :order => 'title')
end
def test_first_and_last_should_allow_integers_for_limit
assert_equal Topic.base.first(2), Topic.base.to_a.first(2)
assert_equal Topic.base.last(2), Topic.base.to_a.last(2)
end
def test_first_and_last_should_not_use_query_when_results_are_loaded
topics = Topic.base
topics.reload # force load
assert_no_queries do
topics.first
topics.last
end
end
def test_first_and_last_find_options_should_use_query_when_results_are_loaded
topics = Topic.base
topics.reload # force load
assert_queries(2) do
topics.first(:order => 'title')
topics.last(:order => 'title')
end
end
def test_empty_should_not_load_results
topics = Topic.base
assert_queries(2) do
topics.empty? # use count query
topics.collect # force load
topics.empty? # use loaded (no query)
end
end
end
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