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
162
163
|
require 'cases/helper'
require 'models/topic'
require 'models/car'
require 'models/wheel'
require 'models/engine'
require 'models/reply'
require 'models/category'
require 'models/categorization'
require 'models/dog'
require 'models/dog_lover'
require 'models/person'
require 'models/friendship'
require 'models/subscriber'
require 'models/subscription'
require 'models/book'
class CounterCacheTest < ActiveRecord::TestCase
fixtures :topics, :categories, :categorizations, :cars, :dogs, :dog_lovers, :people, :friendships, :subscribers, :subscriptions, :books
class ::SpecialTopic < ::Topic
has_many :special_replies, :foreign_key => 'parent_id'
end
class ::SpecialReply < ::Reply
belongs_to :special_topic, :foreign_key => 'parent_id', :counter_cache => 'replies_count'
end
setup do
@topic = Topic.find(1)
end
test "increment counter" do
assert_difference '@topic.reload.replies_count' do
Topic.increment_counter(:replies_count, @topic.id)
end
end
test "decrement counter" do
assert_difference '@topic.reload.replies_count', -1 do
Topic.decrement_counter(:replies_count, @topic.id)
end
end
test "reset counters" do
# throw the count off by 1
Topic.increment_counter(:replies_count, @topic.id)
# check that it gets reset
assert_difference '@topic.reload.replies_count', -1 do
Topic.reset_counters(@topic.id, :replies)
end
end
test 'reset multiple counters' do
Topic.update_counters @topic.id, replies_count: 1, unique_replies_count: 1
assert_difference ['@topic.reload.replies_count', '@topic.reload.unique_replies_count'], -1 do
Topic.reset_counters(@topic.id, :replies, :unique_replies)
end
end
test "reset counters with string argument" do
Topic.increment_counter('replies_count', @topic.id)
assert_difference '@topic.reload.replies_count', -1 do
Topic.reset_counters(@topic.id, 'replies')
end
end
test "reset counters with modularized and camelized classnames" do
special = SpecialTopic.create!(:title => 'Special')
SpecialTopic.increment_counter(:replies_count, special.id)
assert_difference 'special.reload.replies_count', -1 do
SpecialTopic.reset_counters(special.id, :special_replies)
end
end
test "reset counter with belongs_to which has class_name" do
car = cars(:honda)
assert_nothing_raised do
Car.reset_counters(car.id, :engines)
end
assert_nothing_raised do
Car.reset_counters(car.id, :wheels)
end
end
test "reset the right counter if two have the same class_name" do
david = dog_lovers(:david)
DogLover.increment_counter(:bred_dogs_count, david.id)
DogLover.increment_counter(:trained_dogs_count, david.id)
assert_difference 'david.reload.bred_dogs_count', -1 do
DogLover.reset_counters(david.id, :bred_dogs)
end
assert_difference 'david.reload.trained_dogs_count', -1 do
DogLover.reset_counters(david.id, :trained_dogs)
end
end
test "update counter with initial null value" do
category = categories(:general)
assert_equal 2, category.categorizations.count
assert_nil category.categorizations_count
Category.update_counters(category.id, :categorizations_count => category.categorizations.count)
assert_equal 2, category.reload.categorizations_count
end
test "update counter for decrement" do
assert_difference '@topic.reload.replies_count', -3 do
Topic.update_counters(@topic.id, :replies_count => -3)
end
end
test "update counters of multiple records" do
t1, t2 = topics(:first, :second)
assert_difference ['t1.reload.replies_count', 't2.reload.replies_count'], 2 do
Topic.update_counters([t1.id, t2.id], :replies_count => 2)
end
end
test 'update multiple counters' do
assert_difference ['@topic.reload.replies_count', '@topic.reload.unique_replies_count'], 2 do
Topic.update_counters @topic.id, replies_count: 2, unique_replies_count: 2
end
end
test "update other counters on parent destroy" do
david, joanna = dog_lovers(:david, :joanna)
joanna = joanna # squelch a warning
assert_difference 'joanna.reload.dogs_count', -1 do
david.destroy
end
end
test "reset the right counter if two have the same foreign key" do
michael = people(:michael)
assert_nothing_raised(ActiveRecord::StatementInvalid) do
Person.reset_counters(michael.id, :friends_too)
end
end
test "reset counter of has_many :through association" do
subscriber = subscribers('second')
Subscriber.reset_counters(subscriber.id, 'books')
Subscriber.increment_counter('books_count', subscriber.id)
assert_difference 'subscriber.reload.books_count', -1 do
Subscriber.reset_counters(subscriber.id, 'books')
end
end
test "the passed symbol needs to be an association name" do
e = assert_raises(ArgumentError) do
Topic.reset_counters(@topic.id, :replies_count)
end
assert_equal "'Topic' has no association called 'replies_count'", e.message
end
end
|
