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
|
require File.dirname(__FILE__) + '/abstract_unit'
module InvocationTest
class API < ActionWebService::API::Base
api_method :add, :expects => [:int, :int], :returns => [:int]
api_method :transmogrify, :expects_and_returns => [:string]
api_method :fail_with_reason
api_method :fail_generic
api_method :no_before
api_method :no_after
api_method :only_one
api_method :only_two
end
class Interceptor
attr :args
def initialize
@args = nil
end
def intercept(*args)
@args = args
end
end
InterceptorClass = Interceptor.new
class Service < ActionWebService::Base
web_service_api API
before_invocation :intercept_before, :except => [:no_before]
after_invocation :intercept_after, :except => [:no_after]
prepend_after_invocation :intercept_after_first, :except => [:no_after]
prepend_before_invocation :intercept_only, :only => [:only_one, :only_two]
after_invocation(:only => [:only_one]) do |*args|
args[0].instance_variable_set('@block_invoked', args[1])
end
after_invocation InterceptorClass, :only => [:only_one]
attr_accessor :before_invoked
attr_accessor :after_invoked
attr_accessor :after_first_invoked
attr_accessor :only_invoked
attr_accessor :block_invoked
attr_accessor :invocation_result
def initialize
@before_invoked = nil
@after_invoked = nil
@after_first_invoked = nil
@only_invoked = nil
@invocation_result = nil
@block_invoked = nil
end
def add(a, b)
a + b
end
def transmogrify(str)
str.upcase
end
def fail_with_reason
end
def fail_generic
end
def no_before
5
end
def no_after
end
def only_one
end
def only_two
end
protected
def intercept_before(name, args)
@before_invoked = name
return [false, "permission denied"] if name == :fail_with_reason
return false if name == :fail_generic
end
def intercept_after(name, args, result)
@after_invoked = name
@invocation_result = result
end
def intercept_after_first(name, args, result)
@after_first_invoked = name
end
def intercept_only(name, args)
raise "Interception error" unless name == :only_one || name == :only_two
@only_invoked = name
end
end
end
class TC_Invocation < Test::Unit::TestCase
include ActionWebService::Invocation
def setup
@service = InvocationTest::Service.new
end
def test_invocation
assert(perform_invocation(:add, 5, 10) == 15)
assert(perform_invocation(:transmogrify, "hello") == "HELLO")
assert_raises(NoMethodError) do
perform_invocation(:nonexistent_method_xyzzy)
end
end
def test_interceptor_registration
assert(InvocationTest::Service.before_invocation_interceptors.length == 2)
assert(InvocationTest::Service.after_invocation_interceptors.length == 4)
assert_equal(:intercept_only, InvocationTest::Service.before_invocation_interceptors[0])
assert_equal(:intercept_after_first, InvocationTest::Service.after_invocation_interceptors[0])
end
def test_interception
assert(@service.before_invoked.nil?)
assert(@service.after_invoked.nil?)
assert(@service.only_invoked.nil?)
assert(@service.block_invoked.nil?)
assert(@service.invocation_result.nil?)
perform_invocation(:add, 20, 50)
assert(@service.before_invoked == :add)
assert(@service.after_invoked == :add)
assert(@service.invocation_result == 70)
end
def test_interception_canceling
reason = nil
perform_invocation(:fail_with_reason){|r| reason = r}
assert(@service.before_invoked == :fail_with_reason)
assert(@service.after_invoked.nil?)
assert(@service.invocation_result.nil?)
assert(reason == "permission denied")
reason = true
@service.before_invoked = @service.after_invoked = @service.invocation_result = nil
perform_invocation(:fail_generic){|r| reason = r}
assert(@service.before_invoked == :fail_generic)
assert(@service.after_invoked.nil?)
assert(@service.invocation_result.nil?)
assert(reason == true)
end
def test_interception_except_conditions
perform_invocation(:no_before)
assert(@service.before_invoked.nil?)
assert(@service.after_first_invoked == :no_before)
assert(@service.after_invoked == :no_before)
assert(@service.invocation_result == 5)
@service.before_invoked = @service.after_invoked = @service.invocation_result = nil
perform_invocation(:no_after)
assert(@service.before_invoked == :no_after)
assert(@service.after_invoked.nil?)
assert(@service.invocation_result.nil?)
end
def test_interception_only_conditions
assert(@service.only_invoked.nil?)
perform_invocation(:only_one)
assert(@service.only_invoked == :only_one)
assert(@service.block_invoked == :only_one)
assert(InvocationTest::InterceptorClass.args[1] == :only_one)
@service.only_invoked = nil
perform_invocation(:only_two)
assert(@service.only_invoked == :only_two)
end
private
def perform_invocation(method_name, *args, &block)
@service.perform_invocation(method_name, args, &block)
end
end
|
