1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
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
|
