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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
|
require 'test/unit'
require 'rubygems'
gem 'activerecord', '>= 1.15.4.7794'
require 'active_record'
require "#{File.dirname(__FILE__)}/../init"
ActiveRecord::Base.establish_connection(:adapter => "sqlite3", :dbfile => ":memory:")
def setup_db
ActiveRecord::Schema.define(:version => 1) do
create_table :mixins do |t|
t.column :pos, :integer
t.column :parent_id, :integer
t.column :created_at, :datetime
t.column :updated_at, :datetime
end
end
end
def teardown_db
ActiveRecord::Base.connection.tables.each do |table|
ActiveRecord::Base.connection.drop_table(table)
end
end
class Mixin < ActiveRecord::Base
end
class ListMixin < Mixin
acts_as_list :column => "pos", :scope => :parent
def self.table_name() "mixins" end
end
class ListMixinSub1 < ListMixin
end
class ListMixinSub2 < ListMixin
end
class ListWithStringScopeMixin < ActiveRecord::Base
acts_as_list :column => "pos", :scope => 'parent_id = #{parent_id}'
def self.table_name() "mixins" end
end
class ListTest < Test::Unit::TestCase
def setup
setup_db
(1..4).each { |counter| ListMixin.create! :pos => counter, :parent_id => 5 }
end
def teardown
teardown_db
end
def test_reordering
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(2).move_lower
assert_equal [1, 3, 2, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(2).move_higher
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(1).move_to_bottom
assert_equal [2, 3, 4, 1], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(1).move_to_top
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(2).move_to_bottom
assert_equal [1, 3, 4, 2], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(4).move_to_top
assert_equal [4, 1, 3, 2], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
end
def test_move_to_bottom_with_next_to_last_item
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(3).move_to_bottom
assert_equal [1, 2, 4, 3], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
end
def test_next_prev
assert_equal ListMixin.find(2), ListMixin.find(1).lower_item
assert_nil ListMixin.find(1).higher_item
assert_equal ListMixin.find(3), ListMixin.find(4).higher_item
assert_nil ListMixin.find(4).lower_item
end
def test_injection
item = ListMixin.new(:parent_id => 1)
assert_equal "parent_id = 1", item.scope_condition
assert_equal "pos", item.position_column
end
def test_insert
new = ListMixin.create(:parent_id => 20)
assert_equal 1, new.pos
assert new.first?
assert new.last?
new = ListMixin.create(:parent_id => 20)
assert_equal 2, new.pos
assert !new.first?
assert new.last?
new = ListMixin.create(:parent_id => 20)
assert_equal 3, new.pos
assert !new.first?
assert new.last?
new = ListMixin.create(:parent_id => 0)
assert_equal 1, new.pos
assert new.first?
assert new.last?
end
def test_insert_at
new = ListMixin.create(:parent_id => 20)
assert_equal 1, new.pos
new = ListMixin.create(:parent_id => 20)
assert_equal 2, new.pos
new = ListMixin.create(:parent_id => 20)
assert_equal 3, new.pos
new4 = ListMixin.create(:parent_id => 20)
assert_equal 4, new4.pos
new4.insert_at(3)
assert_equal 3, new4.pos
new.reload
assert_equal 4, new.pos
new.insert_at(2)
assert_equal 2, new.pos
new4.reload
assert_equal 4, new4.pos
new5 = ListMixin.create(:parent_id => 20)
assert_equal 5, new5.pos
new5.insert_at(1)
assert_equal 1, new5.pos
new4.reload
assert_equal 5, new4.pos
end
def test_delete_middle
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(2).destroy
assert_equal [1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
assert_equal 1, ListMixin.find(1).pos
assert_equal 2, ListMixin.find(3).pos
assert_equal 3, ListMixin.find(4).pos
ListMixin.find(1).destroy
assert_equal [3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
assert_equal 1, ListMixin.find(3).pos
assert_equal 2, ListMixin.find(4).pos
end
def test_with_string_based_scope
new = ListWithStringScopeMixin.create(:parent_id => 500)
assert_equal 1, new.pos
assert new.first?
assert new.last?
end
def test_nil_scope
new1, new2, new3 = ListMixin.create, ListMixin.create, ListMixin.create
new2.move_higher
assert_equal [new2, new1, new3], ListMixin.find(:all, :conditions => 'parent_id IS NULL', :order => 'pos')
end
def test_remove_from_list_should_then_fail_in_list?
assert_equal true, ListMixin.find(1).in_list?
ListMixin.find(1).remove_from_list
assert_equal false, ListMixin.find(1).in_list?
end
def test_remove_from_list_should_set_position_to_nil
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(2).remove_from_list
assert_equal [2, 1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
assert_equal 1, ListMixin.find(1).pos
assert_equal nil, ListMixin.find(2).pos
assert_equal 2, ListMixin.find(3).pos
assert_equal 3, ListMixin.find(4).pos
end
def test_remove_before_destroy_does_not_shift_lower_items_twice
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
ListMixin.find(2).remove_from_list
ListMixin.find(2).destroy
assert_equal [1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
assert_equal 1, ListMixin.find(1).pos
assert_equal 2, ListMixin.find(3).pos
assert_equal 3, ListMixin.find(4).pos
end
end
class ListSubTest < Test::Unit::TestCase
def setup
setup_db
(1..4).each { |i| ((i % 2 == 1) ? ListMixinSub1 : ListMixinSub2).create! :pos => i, :parent_id => 5000 }
end
def teardown
teardown_db
end
def test_reordering
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(2).move_lower
assert_equal [1, 3, 2, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(2).move_higher
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(1).move_to_bottom
assert_equal [2, 3, 4, 1], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(1).move_to_top
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(2).move_to_bottom
assert_equal [1, 3, 4, 2], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(4).move_to_top
assert_equal [4, 1, 3, 2], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
end
def test_move_to_bottom_with_next_to_last_item
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(3).move_to_bottom
assert_equal [1, 2, 4, 3], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
end
def test_next_prev
assert_equal ListMixin.find(2), ListMixin.find(1).lower_item
assert_nil ListMixin.find(1).higher_item
assert_equal ListMixin.find(3), ListMixin.find(4).higher_item
assert_nil ListMixin.find(4).lower_item
end
def test_injection
item = ListMixin.new("parent_id"=>1)
assert_equal "parent_id = 1", item.scope_condition
assert_equal "pos", item.position_column
end
def test_insert_at
new = ListMixin.create("parent_id" => 20)
assert_equal 1, new.pos
new = ListMixinSub1.create("parent_id" => 20)
assert_equal 2, new.pos
new = ListMixinSub2.create("parent_id" => 20)
assert_equal 3, new.pos
new4 = ListMixin.create("parent_id" => 20)
assert_equal 4, new4.pos
new4.insert_at(3)
assert_equal 3, new4.pos
new.reload
assert_equal 4, new.pos
new.insert_at(2)
assert_equal 2, new.pos
new4.reload
assert_equal 4, new4.pos
new5 = ListMixinSub1.create("parent_id" => 20)
assert_equal 5, new5.pos
new5.insert_at(1)
assert_equal 1, new5.pos
new4.reload
assert_equal 5, new4.pos
end
def test_delete_middle
assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
ListMixin.find(2).destroy
assert_equal [1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
assert_equal 1, ListMixin.find(1).pos
assert_equal 2, ListMixin.find(3).pos
assert_equal 3, ListMixin.find(4).pos
ListMixin.find(1).destroy
assert_equal [3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
assert_equal 1, ListMixin.find(3).pos
assert_equal 2, ListMixin.find(4).pos
end
end
|
