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require "cases/helper"
require 'models/club'
require 'models/member_type'
require 'models/member'
require 'models/membership'
require 'models/sponsor'
require 'models/organization'
require 'models/member_detail'
class HasOneThroughAssociationsTest < ActiveRecord::TestCase
fixtures :member_types, :members, :clubs, :memberships, :sponsors, :organizations
def setup
@member = members(:groucho)
end
def test_has_one_through_with_has_one
assert_equal clubs(:boring_club), @member.club
end
def test_has_one_through_with_has_many
assert_equal clubs(:moustache_club), @member.favourite_club
end
def test_creating_association_creates_through_record
new_member = Member.create(:name => "Chris")
new_member.club = Club.create(:name => "LRUG")
assert_not_nil new_member.current_membership
assert_not_nil new_member.club
end
def test_creating_association_builds_through_record_for_new
new_member = Member.new(:name => "Jane")
new_member.club = clubs(:moustache_club)
assert new_member.current_membership
assert_equal clubs(:moustache_club), new_member.current_membership.club
assert_equal clubs(:moustache_club), new_member.club
assert new_member.save
assert_equal clubs(:moustache_club), new_member.club
end
def test_replace_target_record
new_club = Club.create(:name => "Marx Bros")
@member.club = new_club
@member.reload
assert_equal new_club, @member.club
end
def test_replacing_target_record_deletes_old_association
assert_no_difference "Membership.count" do
new_club = Club.create(:name => "Bananarama")
@member.club = new_club
@member.reload
end
end
def test_set_record_to_nil_should_delete_association
@member.club = nil
@member.reload
assert_equal nil, @member.current_membership
assert_nil @member.club
end
def test_has_one_through_polymorphic
assert_equal clubs(:moustache_club), @member.sponsor_club
end
def test_has_one_through_eager_loading
members = assert_queries(3) do #base table, through table, clubs table
Member.find(:all, :include => :club, :conditions => ["name = ?", "Groucho Marx"])
end
assert_equal 1, members.size
assert_not_nil assert_no_queries {members[0].club}
end
def test_has_one_through_eager_loading_through_polymorphic
members = assert_queries(3) do #base table, through table, clubs table
Member.find(:all, :include => :sponsor_club, :conditions => ["name = ?", "Groucho Marx"])
end
assert_equal 1, members.size
assert_not_nil assert_no_queries {members[0].sponsor_club}
end
def test_has_one_through_polymorphic_with_source_type
assert_equal members(:groucho), clubs(:moustache_club).sponsored_member
end
def test_eager_has_one_through_polymorphic_with_source_type
clubs = Club.find(:all, :include => :sponsored_member, :conditions => ["name = ?","Moustache and Eyebrow Fancier Club"])
# Only the eyebrow fanciers club has a sponsored_member
assert_not_nil assert_no_queries {clubs[0].sponsored_member}
end
def test_has_one_through_nonpreload_eagerloading
members = assert_queries(1) do
Member.find(:all, :include => :club, :conditions => ["members.name = ?", "Groucho Marx"], :order => 'clubs.name') #force fallback
end
assert_equal 1, members.size
assert_not_nil assert_no_queries {members[0].club}
end
def test_has_one_through_nonpreload_eager_loading_through_polymorphic
members = assert_queries(1) do
Member.find(:all, :include => :sponsor_club, :conditions => ["members.name = ?", "Groucho Marx"], :order => 'clubs.name') #force fallback
end
assert_equal 1, members.size
assert_not_nil assert_no_queries {members[0].sponsor_club}
end
def test_has_one_through_nonpreload_eager_loading_through_polymorphic_with_more_than_one_through_record
Sponsor.new(:sponsor_club => clubs(:crazy_club), :sponsorable => members(:groucho)).save!
members = assert_queries(1) do
Member.find(:all, :include => :sponsor_club, :conditions => ["members.name = ?", "Groucho Marx"], :order => 'clubs.name DESC') #force fallback
end
assert_equal 1, members.size
assert_not_nil assert_no_queries { members[0].sponsor_club }
assert_equal clubs(:crazy_club), members[0].sponsor_club
end
def test_uninitialized_has_one_through_should_return_nil_for_unsaved_record
assert_nil Member.new.club
end
def test_assigning_association_correctly_assigns_target
new_member = Member.create(:name => "Chris")
new_member.club = new_club = Club.create(:name => "LRUG")
assert_equal new_club, new_member.club.target
end
def test_has_one_through_proxy_should_not_respond_to_private_methods
assert_raise(NoMethodError) { clubs(:moustache_club).private_method }
assert_raise(NoMethodError) { @member.club.private_method }
end
def test_has_one_through_proxy_should_respond_to_private_methods_via_send
clubs(:moustache_club).send(:private_method)
@member.club.send(:private_method)
end
def test_assigning_to_has_one_through_preserves_decorated_join_record
@organization = organizations(:nsa)
assert_difference 'MemberDetail.count', 1 do
@member_detail = MemberDetail.new(:extra_data => 'Extra')
@member.member_detail = @member_detail
@member.organization = @organization
end
assert_equal @organization, @member.organization
assert @organization.members.include?(@member)
assert_equal 'Extra', @member.member_detail.extra_data
end
def test_reassigning_has_one_through
@organization = organizations(:nsa)
@new_organization = organizations(:discordians)
assert_difference 'MemberDetail.count', 1 do
@member_detail = MemberDetail.new(:extra_data => 'Extra')
@member.member_detail = @member_detail
@member.organization = @organization
end
assert_equal @organization, @member.organization
assert_equal 'Extra', @member.member_detail.extra_data
assert @organization.members.include?(@member)
assert !@new_organization.members.include?(@member)
assert_no_difference 'MemberDetail.count' do
@member.organization = @new_organization
end
assert_equal @new_organization, @member.organization
assert_equal 'Extra', @member.member_detail.extra_data
assert !@organization.members.include?(@member)
assert @new_organization.members.include?(@member)
end
def test_preloading_has_one_through_on_belongs_to
assert_not_nil @member.member_type
@organization = organizations(:nsa)
@member_detail = MemberDetail.new
@member.member_detail = @member_detail
@member.organization = @organization
@member_details = assert_queries(3) do
MemberDetail.find(:all, :include => :member_type)
end
@new_detail = @member_details[0]
assert @new_detail.loaded_member_type?
assert_not_nil assert_no_queries { @new_detail.member_type }
end
def test_save_of_record_with_loaded_has_one_through
@club = @member.club
assert_not_nil @club.sponsored_member
assert_nothing_raised do
Club.find(@club.id).save!
Club.find(@club.id, :include => :sponsored_member).save!
end
@club.sponsor.destroy
assert_nothing_raised do
Club.find(@club.id).save!
Club.find(@club.id, :include => :sponsored_member).save!
end
end
end
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