--- /dev/null
+require "cases/helper"
+require 'models/club'
+require 'models/member'
+require 'models/membership'
+require 'models/sponsor'
+require 'models/organization'
+require 'models/member_detail'
+
+class HasOneThroughAssociationsTest < ActiveRecord::TestCase
+ fixtures :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_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_has_one_through_polymorphic
+ assert_equal clubs(:moustache_club), @member.sponsor_club
+ end
+
+ def has_one_through_to_has_many
+ assert_equal 2, @member.fellow_members.size
+ 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_raises(NoMethodError) { clubs(:moustache_club).private_method }
+ assert_raises(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
+
+end
projects / depot.git / blobdiff