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
|
require 'abstract_unit'
class GrandParent
include ActiveSupport::Callbacks
attr_reader :log, :action_name
def initialize(action_name)
@action_name, @log = action_name, []
end
define_callbacks :dispatch
set_callback :dispatch, :before, :before1, :before2, :if => proc {|c| c.action_name == "index" || c.action_name == "update" }
set_callback :dispatch, :after, :after1, :after2, :if => proc {|c| c.action_name == "update" || c.action_name == "delete" }
def before1
@log << "before1"
end
def before2
@log << "before2"
end
def after1
@log << "after1"
end
def after2
@log << "after2"
end
def dispatch
run_callbacks :dispatch do
@log << action_name
end
self
end
end
class Parent < GrandParent
skip_callback :dispatch, :before, :before2, :unless => proc {|c| c.action_name == "update" }
skip_callback :dispatch, :after, :after2, :unless => proc {|c| c.action_name == "delete" }
end
class Child < GrandParent
skip_callback :dispatch, :before, :before2, :unless => proc {|c| c.action_name == "update" }, :if => :state_open?
def state_open?
@state == :open
end
def initialize(action_name, state)
super(action_name)
@state = state
end
end
class EmptyParent
include ActiveSupport::Callbacks
def performed?
@performed ||= false
end
define_callbacks :dispatch
def perform!
@performed = true
end
def dispatch
run_callbacks :dispatch
self
end
end
class EmptyChild < EmptyParent
set_callback :dispatch, :before, :do_nothing
def do_nothing
end
end
class CountingParent
include ActiveSupport::Callbacks
attr_reader :count
define_callbacks :dispatch
def initialize
@count = 0
end
def count!
@count += 1
end
def dispatch
run_callbacks(:dispatch)
self
end
end
class CountingChild < CountingParent
end
class BasicCallbacksTest < ActiveSupport::TestCase
def setup
@index = GrandParent.new("index").dispatch
@update = GrandParent.new("update").dispatch
@delete = GrandParent.new("delete").dispatch
@unknown = GrandParent.new("unknown").dispatch
end
def test_basic_conditional_callback1
assert_equal %w(before1 before2 index), @index.log
end
def test_basic_conditional_callback2
assert_equal %w(before1 before2 update after2 after1), @update.log
end
def test_basic_conditional_callback3
assert_equal %w(delete after2 after1), @delete.log
end
end
class InheritedCallbacksTest < ActiveSupport::TestCase
def setup
@index = Parent.new("index").dispatch
@update = Parent.new("update").dispatch
@delete = Parent.new("delete").dispatch
@unknown = Parent.new("unknown").dispatch
end
def test_inherited_excluded
assert_equal %w(before1 index), @index.log
end
def test_inherited_not_excluded
assert_equal %w(before1 before2 update after1), @update.log
end
def test_partially_excluded
assert_equal %w(delete after2 after1), @delete.log
end
end
class InheritedCallbacksTest2 < ActiveSupport::TestCase
def setup
@update1 = Child.new("update", :open).dispatch
@update2 = Child.new("update", :closed).dispatch
end
def test_crazy_mix_on
assert_equal %w(before1 update after2 after1), @update1.log
end
def test_crazy_mix_off
assert_equal %w(before1 before2 update after2 after1), @update2.log
end
end
class DynamicInheritedCallbacks < ActiveSupport::TestCase
def test_callbacks_looks_to_the_superclass_before_running
child = EmptyChild.new.dispatch
assert !child.performed?
EmptyParent.set_callback :dispatch, :before, :perform!
child = EmptyChild.new.dispatch
assert child.performed?
end
def test_callbacks_should_be_performed_once_in_child_class
CountingParent.set_callback(:dispatch, :before) { count! }
child = CountingChild.new.dispatch
assert_equal 1, child.count
end
end
|
