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
|
require 'abstract_unit'
class Record
include ActiveSupport::Callbacks
define_callbacks :before_save, :after_save
class << self
def callback_symbol(callback_method)
method_name = "#{callback_method}_method"
define_method(method_name) do
history << [callback_method, :symbol]
end
method_name
end
def callback_string(callback_method)
"history << [#{callback_method.to_sym.inspect}, :string]"
end
def callback_proc(callback_method)
Proc.new { |model| model.history << [callback_method, :proc] }
end
def callback_object(callback_method)
klass = Class.new
klass.send(:define_method, callback_method) do |model|
model.history << [callback_method, :object]
end
klass.new
end
end
def history
@history ||= []
end
end
class Person < Record
[:before_save, :after_save].each do |callback_method|
callback_method_sym = callback_method.to_sym
send(callback_method, callback_symbol(callback_method_sym))
send(callback_method, callback_string(callback_method_sym))
send(callback_method, callback_proc(callback_method_sym))
send(callback_method, callback_object(callback_method_sym))
send(callback_method) { |model| model.history << [callback_method_sym, :block] }
end
def save
run_callbacks(:before_save)
run_callbacks(:after_save)
end
end
class ConditionalPerson < Record
# proc
before_save Proc.new { |r| r.history << [:before_save, :proc] }, :if => Proc.new { |r| true }
before_save Proc.new { |r| r.history << "b00m" }, :if => Proc.new { |r| false }
before_save Proc.new { |r| r.history << [:before_save, :proc] }, :unless => Proc.new { |r| false }
before_save Proc.new { |r| r.history << "b00m" }, :unless => Proc.new { |r| true }
# symbol
before_save Proc.new { |r| r.history << [:before_save, :symbol] }, :if => :yes
before_save Proc.new { |r| r.history << "b00m" }, :if => :no
before_save Proc.new { |r| r.history << [:before_save, :symbol] }, :unless => :no
before_save Proc.new { |r| r.history << "b00m" }, :unless => :yes
# string
before_save Proc.new { |r| r.history << [:before_save, :string] }, :if => 'yes'
before_save Proc.new { |r| r.history << "b00m" }, :if => 'no'
before_save Proc.new { |r| r.history << [:before_save, :string] }, :unless => 'no'
before_save Proc.new { |r| r.history << "b00m" }, :unless => 'yes'
# Array with conditions
before_save Proc.new { |r| r.history << [:before_save, :symbol_array] }, :if => [:yes, :other_yes]
before_save Proc.new { |r| r.history << "b00m" }, :if => [:yes, :no]
before_save Proc.new { |r| r.history << [:before_save, :symbol_array] }, :unless => [:no, :other_no]
before_save Proc.new { |r| r.history << "b00m" }, :unless => [:yes, :no]
# Combined if and unless
before_save Proc.new { |r| r.history << [:before_save, :combined_symbol] }, :if => :yes, :unless => :no
before_save Proc.new { |r| r.history << "b00m" }, :if => :yes, :unless => :yes
# Array with different types of conditions
before_save Proc.new { |r| r.history << [:before_save, :symbol_proc_string_array] }, :if => [:yes, Proc.new { |r| true }, 'yes']
before_save Proc.new { |r| r.history << "b00m" }, :if => [:yes, Proc.new { |r| true }, 'no']
# Array with different types of conditions comibned if and unless
before_save Proc.new { |r| r.history << [:before_save, :combined_symbol_proc_string_array] },
:if => [:yes, Proc.new { |r| true }, 'yes'], :unless => [:no, 'no']
before_save Proc.new { |r| r.history << "b00m" }, :if => [:yes, Proc.new { |r| true }, 'no'], :unless => [:no, 'no']
def yes; true; end
def other_yes; true; end
def no; false; end
def other_no; false; end
def save
run_callbacks(:before_save)
run_callbacks(:after_save)
end
end
class CallbacksTest < Test::Unit::TestCase
def test_save_person
person = Person.new
assert_equal [], person.history
person.save
assert_equal [
[:before_save, :symbol],
[:before_save, :string],
[:before_save, :proc],
[:before_save, :object],
[:before_save, :block],
[:after_save, :symbol],
[:after_save, :string],
[:after_save, :proc],
[:after_save, :object],
[:after_save, :block]
], person.history
end
end
class ConditionalCallbackTest < Test::Unit::TestCase
def test_save_conditional_person
person = ConditionalPerson.new
person.save
assert_equal [
[:before_save, :proc],
[:before_save, :proc],
[:before_save, :symbol],
[:before_save, :symbol],
[:before_save, :string],
[:before_save, :string],
[:before_save, :symbol_array],
[:before_save, :symbol_array],
[:before_save, :combined_symbol],
[:before_save, :symbol_proc_string_array],
[:before_save, :combined_symbol_proc_string_array]
], person.history
end
end
class CallbackTest < Test::Unit::TestCase
include ActiveSupport::Callbacks
def test_eql
callback = Callback.new(:before, :save, :identifier => :lifesaver)
assert callback.eql?(Callback.new(:before, :save, :identifier => :lifesaver))
assert callback.eql?(Callback.new(:before, :save))
assert callback.eql?(:lifesaver)
assert callback.eql?(:save)
assert !callback.eql?(Callback.new(:before, :destroy))
assert !callback.eql?(:destroy)
end
def test_dup
a = Callback.new(:before, :save)
assert_equal({}, a.options)
b = a.dup
b.options[:unless] = :pigs_fly
assert_equal({:unless => :pigs_fly}, b.options)
assert_equal({}, a.options)
end
end
class CallbackChainTest < Test::Unit::TestCase
include ActiveSupport::Callbacks
def setup
@chain = CallbackChain.build(:make, :bacon, :lettuce, :tomato)
end
def test_build
assert_equal 3, @chain.size
assert_equal [:bacon, :lettuce, :tomato], @chain.map(&:method)
end
def test_find
assert_equal :bacon, @chain.find(:bacon).method
end
def test_replace_or_append
assert_equal [:bacon, :lettuce, :tomato], (@chain.replace_or_append!(Callback.new(:make, :bacon))).map(&:method)
assert_equal [:bacon, :lettuce, :tomato, :turkey], (@chain.replace_or_append!(Callback.new(:make, :turkey))).map(&:method)
assert_equal [:bacon, :lettuce, :tomato, :turkey, :mayo], (@chain.replace_or_append!(Callback.new(:make, :mayo))).map(&:method)
end
def test_delete
assert_equal [:bacon, :lettuce, :tomato], @chain.map(&:method)
@chain.delete(:bacon)
assert_equal [:lettuce, :tomato], @chain.map(&:method)
end
end
|
