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rails--rails/activerecord/test/cases/named_scope_test.rb

320 lines
10 KiB
Ruby

require "cases/helper"
require 'models/post'
require 'models/topic'
require 'models/comment'
require 'models/reply'
require 'models/author'
require 'models/developer'
class NamedScopeTest < ActiveRecord::TestCase
fixtures :posts, :authors, :topics, :comments, :author_addresses
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_scope_should_respond_to_own_methods_and_methods_of_the_proxy
assert Topic.approved.respond_to?(:proxy_found)
assert Topic.approved.respond_to?(:count)
assert Topic.approved.respond_to?(:length)
end
def test_respond_to_respects_include_private_parameter
assert !Topic.approved.respond_to?(:load_found)
assert Topic.approved.respond_to?(:load_found, true)
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_with_string_name_can_be_composed
# NOTE that scopes defined with a string as a name worked on their own
# but when called on another scope the other scope was completely replaced
assert_equal Topic.replied.approved, Topic.replied.approved_as_string
end
def test_scopes_can_be_specified_with_deep_hash_conditions
assert_equal Topic.replied.approved, Topic.replied.approved_as_hash_condition
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_scopes_with_joins
address = author_addresses(:david_address)
posts_with_authors_at_address = Post.find(
:all, :joins => 'JOIN authors ON authors.id = posts.author_id',
:conditions => [ 'authors.author_address_id = ?', address.id ]
)
assert_equal posts_with_authors_at_address, Post.with_authors_at_address(address)
end
def test_scopes_with_joins_respects_custom_select
address = author_addresses(:david_address)
posts_with_authors_at_address_titles = Post.find(:all,
:select => 'title',
:joins => 'JOIN authors ON authors.id = posts.author_id',
:conditions => [ 'authors.author_address_id = ?', address.id ]
)
assert_equal posts_with_authors_at_address_titles, Post.with_authors_at_address(address).find(:all, :select => 'title')
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
def test_any_should_not_load_results
topics = Topic.base
assert_queries(2) do
topics.any? # use count query
topics.collect # force load
topics.any? # use loaded (no query)
end
end
def test_any_should_call_proxy_found_if_using_a_block
topics = Topic.base
assert_queries(1) do
topics.expects(:empty?).never
topics.any? { true }
end
end
def test_any_should_not_fire_query_if_named_scope_loaded
topics = Topic.base
topics.collect # force load
assert_no_queries { assert topics.any? }
end
def test_should_build_with_proxy_options
topic = Topic.approved.build({})
assert topic.approved
end
def test_should_build_new_with_proxy_options
topic = Topic.approved.new
assert topic.approved
end
def test_should_create_with_proxy_options
topic = Topic.approved.create({})
assert topic.approved
end
def test_should_create_with_bang_with_proxy_options
topic = Topic.approved.create!({})
assert topic.approved
end
def test_should_build_with_proxy_options_chained
topic = Topic.approved.by_lifo.build({})
assert topic.approved
assert_equal 'lifo', topic.author_name
end
def test_find_all_should_behave_like_select
assert_equal Topic.base.select(&:approved), Topic.base.find_all(&:approved)
end
def test_rand_should_select_a_random_object_from_proxy
assert Topic.approved.rand.is_a?(Topic)
end
def test_should_use_where_in_query_for_named_scope
assert_equal Developer.find_all_by_name('Jamis').to_set, Developer.find_all_by_id(Developer.jamises).to_set
end
def test_size_should_use_count_when_results_are_not_loaded
topics = Topic.base
assert_queries(1) do
assert_sql(/COUNT/i) { topics.size }
end
end
def test_size_should_use_length_when_results_are_loaded
topics = Topic.base
topics.reload # force load
assert_no_queries do
topics.size # use loaded (no query)
end
end
def test_chaining_with_duplicate_joins
join = "INNER JOIN comments ON comments.post_id = posts.id"
post = Post.find(1)
assert_equal post.comments.size, Post.scoped(:joins => join).scoped(:joins => join, :conditions => "posts.id = #{post.id}").size
end
def test_chanining_should_use_latest_conditions_when_creating
post1 = Topic.rejected.approved.new
assert post1.approved?
post2 = Topic.approved.rejected.new
assert ! post2.approved?
end
def test_chanining_should_use_latest_conditions_when_searching
# Normal hash conditions
assert_equal Topic.all(:conditions => {:approved => true}), Topic.rejected.approved.all
assert_equal Topic.all(:conditions => {:approved => false}), Topic.approved.rejected.all
# Nested hash conditions with same keys
assert_equal [posts(:sti_comments)], Post.with_special_comments.with_very_special_comments.all
# Nested hash conditions with different keys
assert_equal [posts(:sti_comments)], Post.with_special_comments.with_post(4).all.uniq
end
end
class DynamicScopeMatchTest < ActiveRecord::TestCase
def test_scoped_by_no_match
assert_nil ActiveRecord::DynamicScopeMatch.match("not_scoped_at_all")
end
def test_scoped_by
match = ActiveRecord::DynamicScopeMatch.match("scoped_by_age_and_sex_and_location")
assert_not_nil match
assert match.scope?
assert_equal %w(age sex location), match.attribute_names
end
end
class DynamicScopeTest < ActiveRecord::TestCase
def test_dynamic_scope
assert_equal Post.scoped_by_author_id(1).find(1), Post.find(1)
assert_equal Post.scoped_by_author_id_and_title(1, "Welcome to the weblog").first, Post.find(:first, :conditions => { :author_id => 1, :title => "Welcome to the weblog"})
end
end